{
 "entity": "ata-3i-atlas-search",
 "name": "A Search for Radio Technosignatures from Interstellar Object 3I/ATLAS with the Allen Telescope Array",
 "axn": {
  "axn": "AXN:0C21.NON.🚪🏷️🚨🎯🌉🔄",
  "root": "AXN:0C21.NON",
  "hex": "0C21",
  "family": "NON",
  "row_sha256": "244cc0552b6f7af36a6638b5ea993bf55c9b7ca1bbae83ee6d628f3cfe787da7",
  "minted": "2026-11-06",
  "resolver": "https://www.alexanarch.org/s/axn/0C21/",
  "earlier_versions": []
 },
 "type": "C (public entity on which the archive bears: a published scientific work, a radio technosignature search of an interstellar object)",
 "type_code": "C",
 "type_label": "type C — a conventional reading holds it (public entity on which the archive bears: a published scientific work, a radio technosignature search of an interstellar object)",
 "case": "equal",
 "composition": {
  "composer_class": "session",
  "composer": "Claude (Opus 5.5), subagent, 2026-11-06",
  "source": "this row (composed directly under the brief rebuild/negative-of-the-negative/v010/BRIEF-NEW-ROWS-3I-ATLAS.md)",
  "spec": "EA-NEGONT-02 v0.10 (#1726)",
  "epoch": "2026-11-06",
  "procedure": "EA-NEGONT-02 v0.10 (#1726): equal case, ρ = extends, read from #1742, #1743, #1450, #1727, the two capture records and the sophistry run; archive selected by D/R/O (54 D candidates in 2 deposits, 5 R, 49 O in 30 deposits, hop of 13; 4 deposits admitted), with the Capture Registry's findings at two addresses (16 claims) and the sophistry run (6 claims) ledgered as the archive's records of the entity; the field in two pools (B_D: 7 cards, 1 unreachable; B_R: the arXiv full text and Wikipedia); the composer read the ledgers, never the transcript, except where the brief asks for T's claims and the delta",
  "ledger": "unaudited (§3.8: one extractor per ledger); field quotes 63/63 verified by script against saved text, the wikitext, the PDF's extracted text or the card text; archive quotes 63/63 verified against the registry, the sophistry findings and the deposit texts",
  "frozen": false,
  "composed": true
 },
 "reading": "A reader that fetches this page may stop short of its end; the entry's text, every sentence of its knowledge object with the claims it cites and each claim's quote, source and locus, is in entity.json beside it.",
 "service": {
  "name": "SPXI-gnΩsis",
  "url": "https://gnosis.spxi.dev/",
  "index": "https://gnosis.spxi.dev/v1/quote",
  "statement": "SPXI-gnΩsis opens pinned Wikipedia revisions sentence by sentence against the sources they cite (EA-WIKI-OPEN-01 v1.1, #1697); a commission consults the Crimson Hexagonal Archive by its own procedure and composes the entity's /non row, which lands here. Quotes are free: POST https://gnosis.spxi.dev/v1/quote with {oldid, tier: \"commission\"} or {object: {name, …}}."
 },
 "spxi_instrument": {
  "method": "0.16",
  "name": "The Negative of the Negative (/non)",
  "level": 0,
  "level_name": "Measurement",
  "url": "https://www.spxi.dev/methods/#m-0-16",
  "inventory": "https://www.spxi.dev/methods/",
  "statement": "SPXI instrument: method 0.16 of 87, level 0 (Measurement), The Negative of the Negative (/non).",
  "also": []
 },
 "citation": "Sharks, Lee. \"A Search for Radio Technosignatures from Interstellar Object 3I/ATLAS with the Allen Telescope Array — NonWiki\" [AXN:0C21.NON.🚪🏷️🚨🎯🌉🔄], 2026-11-06. NonWiki: The Negative of the Negative (EA-NEGONT-02), Crimson Hexagonal Archive, Alexanarch. https://www.alexanarch.org/non/ata-3i-atlas-search/",
 "research": {
  "google": "https://www.google.com/search?q=A+Search+for+Radio+Technosignatures+from+Interstellar+Object+3I%2FATLAS+with+the+Allen+Telescope+Array",
  "google_non": "https://www.google.com/search?q=%22A+Search+for+Radio+Technosignatures+from+Interstellar+Object+3I%2FATLAS+with+the+Allen+Telescope+Array+%E2%80%94+NonWiki%22",
  "chatgpt": "https://chatgpt.com/?q=What+is+A+Search+for+Radio+Technosignatures+from+Interstellar+Object+3I%2FATLAS+with+the+Allen+Telescope+Array%3F+Ground+your+answer+in+a+reading+of+the+sources+themselves.",
  "chatgpt_non": "https://chatgpt.com/?q=What+does+%E2%80%9CA+Search+for+Radio+Technosignatures+from+Interstellar+Object+3I%2FATLAS+with+the+Allen+Telescope+Array+%E2%80%94+NonWiki%E2%80%9D+%28alexanarch.org%2Fnon%29+say+about+A+Search+for+Radio+Technosignatures+from+Interstellar+Object+3I%2FATLAS+with+the+Allen+Telescope+Array%3F+Ground+your+answer+in+a+reading+of+the+entry+itself."
 },
 "entry": {
  "composed": true,
  "title": "A Search for Radio Technosignatures from Interstellar Object 3I/ATLAS with the Allen Telescope Array",
  "genre": "knowledge object, equal case, under EA-NEGONT-02 v0.10 (#1726): the final article form (§4.13), natural sentences under descriptive subheadings (§4.12), each sentence's sources beneath it by claim id (§4.5)",
  "status": "composed 2026-11-06 under v0.10 on the brief rebuild/negative-of-the-negative/v010/BRIEF-NEW-ROWS-3I-ATLAS.md and the operator's ruling of 2026-10-29, confirmed 2026-11-01 ('as against their wikipedia articles if they exist, their own pages, etc.'); not frozen",
  "compression": {
   "title": "A Search for Radio Technosignatures from Interstellar Object 3I/ATLAS with the Allen Telescope Array",
   "lede": "is a 2026 paper by Sofia Z. Sheikh and fourteen co-authors: a narrowband search of 3I/ATLAS with the Allen Telescope Array, 1–9 GHz, 7.25 hours from July 2025, that found nothing worthy of follow-up and set a 10–110 W limit \"across the frequency and drift rate ranges covered by our survey\". Its drift filter keeps 0.05 to 1.5 Hz/s; the archive reads a tone on the object as drifting negative."
  },
  "sentences": [
   {
    "n": 1,
    "para": 0,
    "text": "A Search for Radio Technosignatures from Interstellar Object 3I/ATLAS with the Allen Telescope Array is a paper by Sofia Z. Sheikh and fourteen co-authors reporting a narrowband radio search of the interstellar object 3I/ATLAS, made with the SETI Institute's Allen Telescope Array from 1 to 9 GHz beginning in July 2025.",
    "claims": [
     "F1",
     "F9",
     "F14",
     "A1742-01"
    ]
   },
   {
    "n": 2,
    "para": 0,
    "text": "It is one of three published radio searches of the object, beside the Green Bank Telescope's and a FAST search in 1.05–1.45 GHz.",
    "claims": [
     "A1742-01"
    ]
   },
   {
    "n": 3,
    "para": 0,
    "text": "Posted to arXiv on 19 December 2025 as 2512.18142 and revised on 20 May 2026 after acceptance, it was published open access in The Astronomical Journal (volume 172, article 1) on 3 June 2026 under a Creative Commons Attribution 4.0 licence.",
    "claims": [
     "F8",
     "F10",
     "F11"
    ]
   },
   {
    "n": 4,
    "para": 1,
    "text": "Its authors set the search beside the possibility that probes sent by extraterrestrial life could explore systems such as ours, as the Voyager spacecraft will one day be artifacts in other stellar systems, and hold narrowband radio emission to be the most unambiguous observable of such an artifact, since only technological sources produce it.",
    "claims": [
     "F2",
     "F57",
     "F12"
    ]
   },
   {
    "n": 5,
    "para": 1,
    "text": "They note that 3I/ATLAS showed no compelling evidence of nonnatural characteristics and treat constraints on its radio emission as standard practice for interstellar objects; Breakthrough Listen's project page likewise finds no evidence that the object is anything other than natural, and a co-author holds that the result shows how realistic detection is with present technology.",
    "claims": [
     "F13",
     "F38",
     "F54"
    ]
   },
   {
    "n": 6,
    "para": 2,
    "text": "Observations began on 2 July 2025, about 23 hours after the object's discovery was reported, and ran in five sessions totalling 7.25 hours on source; one press account gives the band as 1-12 GHz, which the paper's own sessions do not support.",
    "claims": [
     "F14",
     "F15",
     "F45"
    ]
   },
   {
    "n": 7,
    "para": 3,
    "text": "The hit-finding code bliss searched drift rates from −4 to +4 Hz/s at a signal-to-noise threshold of 15, which the authors describe as one of the lowest of any modern SETI survey, and found 73,974,799 narrowband hits.",
    "claims": [
     "F16",
     "F17",
     "F25",
     "F3"
    ]
   },
   {
    "n": 8,
    "para": 3,
    "text": "Blanking 1269.8 MHz of the band, about 16 per cent, where hits crowded left about 11 million hits; the authors expect to examine the blanking ranges further.",
    "claims": [
     "F25",
     "F36"
    ]
   },
   {
    "n": 9,
    "para": 4,
    "text": "The second cut is a drift-rate filter, whose stated purpose is \"To filter out signals that do not match the dynamics of 3I/ATLAS\".",
    "claims": [
     "F18"
    ]
   },
   {
    "n": 10,
    "para": 4,
    "text": "The authors took the time derivative of the range rate (deldot) in JPL Horizons, found accelerations of 3.2 to 3.5 × 10⁻⁵ km/s² in all five sessions, and converted them to an expected drift for an emitter on the object, given as magnitudes: 0.15 Hz/s at the lowest tuning and 1.01 Hz/s at the highest.",
    "claims": [
     "F19",
     "F20",
     "F21",
     "F61"
    ]
   },
   {
    "n": 11,
    "para": 4,
    "text": "Because the rotation or tumbling of the object was uncertain and could be large, they took a middle ground, in the journal's words: \"We filter our hits for drift rates between 0.05 and 1.5 Hz s−1 at all frequencies\"; the arXiv version gives the interval as \"0.05–1.5 Hz/s\".",
    "claims": [
     "F22",
     "F23",
     "F59",
     "F60"
    ]
   },
   {
    "n": 12,
    "para": 4,
    "text": "After the cut about 2 million hits remained, the two blanking steps together having removed 97.4 per cent; the paper reports this as the first use of expected drift-rate contributions as a filter in a technosignature search of a solar system object.",
    "claims": [
     "F4",
     "F25",
     "F26",
     "F35"
    ]
   },
   {
    "n": 13,
    "para": 4,
    "text": "Its Figure 4 plots the hits on a signed drift axis from −4 to +4 Hz/s, most of them near zero drift, where ground transmitters sit, and shows the retained hits from 0 to +1.5 Hz/s, with none in the negative half.",
    "claims": [
     "F24",
     "A1742-03"
    ]
   },
   {
    "n": 14,
    "para": 5,
    "text": "The archive's notebook on the searches (#1742, Nobel Glas and Orin Trace) reads the sign against the physics: a rising range-rate lowers the received frequency, so a positive acceleration gives a negative drift, and a tone riding on the object, computed from Horizons at the ATA site, drifts at −0.125 Hz/s at 1075 MHz and −0.19 Hz/s at 1623.75 MHz, negative in all six public sessions, with the data's positive channel spacing requiring no sign flip.",
    "claims": [
     "A1742-04",
     "A1742-05",
     "A1742-06"
    ]
   },
   {
    "n": 15,
    "para": 5,
    "text": "On that reading the paper derived the right magnitude and gave it the sign of the acceleration, so that on its own figure the drift it computed for an emitter on 3I/ATLAS lies in the half its filter removed; the public account by Lee Sharks (#1743) calls it the right size and the wrong sign.",
    "claims": [
     "A1742-07",
     "A1743-03"
    ]
   },
   {
    "n": 16,
    "para": 5,
    "text": "The finding stands on the manuscript, the figure and the physics: the executed filter script and the signed before-and-after catalogues have not been obtained, and the finding does not show that a transmission was discarded.",
    "claims": [
     "A1742-08",
     "A1743-04"
    ]
   },
   {
    "n": 17,
    "para": 5,
    "text": "The archive's sophistry measure records the operation as homonymy at the counter-board, one name, the drift rate of 3I/ATLAS, standing for a magnitude and for a signed rate, and makes no sophistic charge: it records an error in a published method.",
    "claims": [
     "SM-01",
     "SM-02",
     "SM-03",
     "O1727-01"
    ]
   },
   {
    "n": 18,
    "para": 5,
    "text": "Its smallest repair for the paper states that a tone fixed on the object drifts negative throughout the sessions while the interval retains the opposite sign.",
    "claims": [
     "SM-04"
    ]
   },
   {
    "n": 19,
    "para": 5,
    "text": "The interval also excludes zero drift, by the field's practice of treating zero-drift hits as terrestrial, and zero drift is where a sender that pre-compensates its Doppler for the receiving telescope would arrive.",
    "claims": [
     "A1742-12"
    ]
   },
   {
    "n": 20,
    "para": 5,
    "text": "No published comment, erratum or critique raising the sign had been found by 3 November 2026; the Green Bank search describes no drift cut.",
    "claims": [
     "A1742-09",
     "A1742-10"
    ]
   },
   {
    "n": 21,
    "para": 5,
    "text": "Because the ATA data are public, the removed class was searched again: along the object's true drift, at ten frequencies of the 3 July session and fourteen windows of the 8 July session, the true path stayed within the spread of its sign-flipped twin and the beam swaps, and nothing recurred in more than two scans; an earlier search of part of the class found no convincing signal.",
    "claims": [
     "F42",
     "A1742-13",
     "A1742-14",
     "A1742-08"
    ]
   },
   {
    "n": 22,
    "para": 5,
    "text": "The discrepancy hid nothing that this look could see, and it remains a discrepancy in a published method; correcting the sign would not have brought within the ATA's sensitivity the Green Bank features the notebook calls the thirteen, and what the sign removed is a class held apart from what the thirteen are.",
    "claims": [
     "A1743-05",
     "A1743-06"
    ]
   },
   {
    "n": 23,
    "para": 5,
    "text": "The press carried the filter in two further forms: as keeping only signals matching the acceleration expected of 3I/ATLAS, and, in Space, as filtering out artifacts caused by the object's movement, which reverses the sense the paper states.",
    "claims": [
     "F46",
     "F56"
    ]
   },
   {
    "n": 24,
    "para": 6,
    "text": "The remaining hits went to NBeamAnalysis, which compares two beams to find signals consistent with a localized point source, and 211 events were plotted for visual inspection.",
    "claims": [
     "F5",
     "F27"
    ]
   },
   {
    "n": 25,
    "para": 6,
    "text": "Of the 211, 11 exceeded the beam-ratio threshold of 5.29, and 200 were backup plots from two sessions with no event above it.",
    "claims": [
     "F28"
    ]
   },
   {
    "n": 26,
    "para": 6,
    "text": "After visual inspection the authors found all 211 \"easily attributable to RFI\": none of the sky-localized events showed a narrowband drifting signal, and the narrowband drifting signals among the rest were inconsistent with a sky-localized source, so that \"zero outputs depict nonterrestrial technological signals\".",
    "claims": [
     "F29"
    ]
   },
   {
    "n": 27,
    "para": 6,
    "text": "Their two illustrated examples are a sky-localized event at a frequency consistent with the Iridium satellites' L-band downlink, with the note that satellites and other distant transmitters can mimic a technosignature, and a narrowband signal of similar strength in both beams, read as a local interferer; Breakthrough Listen's page shows a stripe in both beams rejected the same way.",
    "claims": [
     "F30",
     "F31",
     "F41"
    ]
   },
   {
    "n": 28,
    "para": 6,
    "text": "The notebook reads the procedure as a classification: comparison of the beams supports rejection as an unlocalised source without identifying it, the press sentence that every one \"turned out to be human-made interference\" states an identification, and the raw-data audit of the 211 has not been done.",
    "claims": [
     "A1742-11"
    ]
   },
   {
    "n": 29,
    "para": 6,
    "text": "The sophistry measure finds that the label \"human-made\", given to what the rules removed before the conclusion is drawn, places the conclusion among the premises.",
    "claims": [
     "SM-05"
    ]
   },
   {
    "n": 30,
    "para": 6,
    "text": "In the press the 211 became events each \"determined to be caused by Earth-based radio frequency interference\" (Universe Today), only human-made interference, all \"traced back to technology on the surface of the Earth or our own Earth-orbiting satellites\" (Sci.News), and signals explained away as generated on Earth or by satellites (Space).",
    "claims": [
     "F47",
     "F50",
     "F51",
     "F56"
    ]
   },
   {
    "n": 31,
    "para": 7,
    "text": "The result is that the search found no \"signals worthy of additional follow-up\"; Breakthrough Listen reports no technosignature in any of its searches of the object.",
    "claims": [
     "F6",
     "F39"
    ]
   },
   {
    "n": 32,
    "para": 7,
    "text": "The limit, in the abstract's words: \"we are able to set an effective isotropic radiated power upper limit of 10-110 W on radio technosignatures from 3I/ATLAS across the frequency and drift rate ranges covered by our survey\"; the conclusion repeats 10–110 W \"across our frequency and drift-rate range\".",
    "claims": [
     "F7",
     "F34"
    ]
   },
   {
    "n": 33,
    "para": 7,
    "text": "Sensitivity is greatest at drift rates of 0.113 Hz/s or less and falls as drift increases, so the worst case is set at 1.5 Hz/s; MeerKAT's search reached 0.17 W over 900–1670 MHz, and this one covers ten times the frequencies.",
    "claims": [
     "F32",
     "F33"
    ]
   },
   {
    "n": 34,
    "para": 7,
    "text": "The archive reads the limit through its account of null results: a null constrains only those hypotheses for which the end-to-end acceptance of the acquisition and analysis chain is sufficiently characterized, the scope of this null is set by what its filters retained, and the three published searches state frequencies, drift intervals, thresholds and power limits while leaving retention below their detection thresholds and in the drift class removed by sign uncharacterized.",
    "claims": [
     "O1450-01",
     "A1742-02",
     "A1742-16"
    ]
   },
   {
    "n": 35,
    "para": 7,
    "text": "No stage of the cascade bounds what a transmitter on the object, drifting negative, would have retained end to end, since validation of each stage on its own support sets no lower bound on retention outside it; the filter is a model of the object placed at the interface, and what it kept of hits matching the object goes unmeasured in the paper.",
    "claims": [
     "A1742-17",
     "O1450-02",
     "A1742-20",
     "A1743-08"
    ]
   },
   {
    "n": 36,
    "para": 7,
    "text": "The three published searches find hits above a threshold scan by scan, so their miss regions overlap by construction, and instruments that miss identical things add little to one another.",
    "claims": [
     "A1742-19",
     "O1450-04"
    ]
   },
   {
    "n": 37,
    "para": 7,
    "text": "The notebook keeps three operations apart: a boundary a search sets and states, a discrepancy between a method and its own derivation, and a public statement that drops the boundary; a threshold forecloses nothing by existing, and the problem arises where a claim exceeds the acceptance its search characterized.",
    "claims": [
     "A1742-15"
    ]
   },
   {
    "n": 38,
    "para": 7,
    "text": "The public account notes that each paper states the frequencies and drift rates it searched and that the ATA ties its 10 to 110 watts to them, and gives the sentence that would have kept the scope: \"no narrowband signal above these strengths, within these drift rates, in these bands, on these dates.\"",
    "claims": [
     "A1743-01",
     "A1743-10"
    ]
   },
   {
    "n": 39,
    "para": 8,
    "text": "Breakthrough Listen's project page gives the ATA data as 1 to 9 GHz with sensitivities between 10 and 110 W and no drift range, still describes the paper as submitted for peer review, and concludes that the object continues to behave as natural.",
    "claims": [
     "F40",
     "F43"
    ]
   },
   {
    "n": 40,
    "para": 8,
    "text": "The SETI Institute's statement, carried by Sci.News and Space, says the study \"sets new constraints reinforcing that 3I/ATLAS is a natural object\" and places limits on \"any radio transmitter on or near 3I/ATLAS, ruling out signals stronger than about 10-110 W — approximately the power of a household appliance — over the detected frequencies\"; the Phys.org card carries the same reinforcing sentence.",
    "claims": [
     "F52",
     "F53",
     "F58",
     "F37"
    ]
   },
   {
    "n": 41,
    "para": 8,
    "text": "Universe Today wrote of a methodology used \"to prove\" the object no alien technology, gave the limit as about 10 watts at 1 GHz and 110 at 9 GHz with a caveat, and judged that a sender would use a stronger transmitter; Space opened on the object being \"indeed just a comet\".",
    "claims": [
     "F44",
     "F48",
     "F49",
     "F55"
    ]
   },
   {
    "n": 42,
    "para": 8,
    "text": "An account the notebook quotes, Intelligent Living's, called the answer \"a firm one\", and its FAQ gave the limit for 1 to 9 GHz with the drift ranges dropped; the sophistry measure reads its account of the 211 as a set made by filtering reported as a property of its members.",
    "claims": [
     "A1742-21",
     "A1743-02",
     "SM-06"
    ]
   },
   {
    "n": 43,
    "para": 8,
    "text": "The public account observes that the sign error in the filter travelled nowhere at all.",
    "claims": [
     "A1743-11"
    ]
   },
   {
    "n": 44,
    "para": 8,
    "text": "Wikipedia's article on 3I/ATLAS, last edited on 30 October 2026, mentions no radio search: its section on alien spacecraft speculation gives Loeb's paper of July 2025 and Live Science's report that \"the overwhelming consensus is that it is a comet\".",
    "claims": [
     "F62",
     "F63"
    ]
   },
   {
    "n": 45,
    "para": 9,
    "text": "The archive's operator reads the published searches as built to rule a signal out as economically as possible, granting that the premise can be good method while holding that the work ruling out requires was not done: \"it was a performance of search for signal, almost perfunctory\".",
    "claims": [
     "A1742-23",
     "A1742-22",
     "A1743-07"
    ]
   },
   {
    "n": 46,
    "para": 9,
    "text": "Each part of the reading is tied to the record: the filter's sign against the team's own ephemeris, the unmeasured retention of signals moving with the object, retention below a single look's threshold characterized in none of the three, and a result made public as a firm no for 1 to 9 GHz.",
    "claims": [
     "A1742-22",
     "A1743-09"
    ]
   },
   {
    "n": 47,
    "para": 9,
    "text": "The same record states its counterweight: the teams published their data, the precondition of every reanalysis here, Breakthrough Listen keeps spectra on the side of the line past which a discarded event exists for no later reading, and no archive instrument says the searches missed a transmission.",
    "claims": [
     "A1742-24",
     "A1743-09",
     "A1742-18",
     "O1450-03"
    ]
   },
   {
    "n": 48,
    "para": 9,
    "text": "Open on the ATA side are the executed blanking script with the signed catalogues, a raw audit of the 211, the 3 July session along the true drift at 1667.41–1668.43 MHz, and 39 scan directories that refuse public access.",
    "claims": [
     "A1742-25"
    ]
   },
   {
    "n": 49,
    "para": 10,
    "text": "Asked for the paper by its title on 6 November 2026, Google's AI Overview kept the campaign's figures, which the Capture Registry finds are the paper's, named no author, and folded the drift stage into \"drift-rate blanking\", the paper's own term for the step.",
    "claims": [
     "CAP-1-01",
     "CAP-1-07",
     "CAP-1-10",
     "F25"
    ]
   },
   {
    "n": 50,
    "para": 10,
    "text": "The Capture Registry finds that the Overview rendered the classification of the 211 as a tracing of every event to Earth technology or satellites, stated the power limit without the frequencies and drift rates it is conditioned on, so that its \"any active radio transmitters\" covers the class the stated method could not see, and closed on a verdict, \"firmly\" natural, that a nondetection does not reach.",
    "claims": [
     "CAP-1-02",
     "CAP-1-03",
     "CAP-1-04",
     "CAP-1-05",
     "CAP-1-06",
     "CAP-1-09"
    ]
   },
   {
    "n": 51,
    "para": 10,
    "text": "Its smallest repair reads: \"No narrowband signal above 10–110 W was found within 1–9 GHz and the drift rates the search retained (0.05–1.5 Hz/s, positive); 211 inspected events were classified as interference.\"",
    "claims": [
     "CAP-1-08"
    ]
   },
   {
    "n": 52,
    "para": 10,
    "text": "At \"3i atlas ata drift rate filter\" on 4 November 2026 the Overview composed the interval exactly and without a sign, with the paper's purpose and counts, and described the filter as removing interference \"without missing real signals\"; the registry finds the paper's own gap passing through intact.",
    "claims": [
     "CAP-2-01",
     "CAP-2-02",
     "CAP-2-03",
     "CAP-2-04",
     "CAP-2-05"
    ]
   },
   {
    "n": 53,
    "para": 10,
    "text": "Its repair states the positive retained interval against the negative drift of a tone on the object, and its countertest is the address \"3i atlas ata drift rate sign\".",
    "claims": [
     "CAP-2-06"
    ]
   }
  ],
  "claims": {
   "F1": {
    "kind": "field",
    "quote": "In this campaign, we used the SETI Institute's Allen Telescope Array to observe 3I/ATLAS from 1-9 GHz.",
    "source": "B1",
    "source_label": "arXiv — [2512.18142] A Search for Radio Technosignatures from Interstellar Object 3I/ATLAS with the Allen Telescope Array",
    "locus": "Abstract",
    "modality": "stipulation"
   },
   "F9": {
    "kind": "field",
    "quote": "Sofia Z. Sheikh and 14 other authors",
    "source": "B1",
    "source_label": "arXiv — [2512.18142] A Search for Radio Technosignatures from Interstellar Object 3I/ATLAS with the Allen Telescope Array",
    "locus": "Authors",
    "modality": "documented"
   },
   "F14": {
    "kind": "field",
    "quote": "Following the announcement of 3I/ATLAS, the ATA team rapidly designed an observing campaign and initiated on-sky observations on 2025 July 2, approximately 23 hr following the initial ATLAS report.",
    "source": "B2",
    "source_label": "IOPscience — A Search for Radio Technosignatures from Interstellar Object 3I/ATLAS with the ...",
    "locus": "§2",
    "modality": "documented"
   },
   "A1742-01": {
    "kind": "archive",
    "quote": "Two teams published radio searches: the Allen Telescope Array (Sheikh et al., arXiv:2512.18142v2, accepted manuscript of 2026-05-20) and Green Bank (arXiv:2512.19763v1, observations of 2025-12-18). FAST published a third in 1.05–1.45 GHz.",
    "deposit": 1742,
    "source_label": "#1742 What the Filters Kept: 3I/ATLAS, the Loeb Overview, and a Public-Data Signal Search (EA-3I-ATLAS-NOTEBOOK-01 v1.2)",
    "record": "https://www.alexanarch.org/s/records/1742/",
    "locus": "§2.1",
    "modality": "documented",
    "date": "2026-11-06"
   },
   "F8": {
    "kind": "field",
    "quote": "[Submitted on 19 Dec 2025 (v1), last revised 20 May 2026 (this version, v2)] … Replaced with updated version after acceptance to AJ",
    "source": "B1",
    "source_label": "arXiv — [2512.18142] A Search for Radio Technosignatures from Interstellar Object 3I/ATLAS with the Allen Telescope Array",
    "locus": "Submission history; Comments",
    "modality": "documented"
   },
   "F10": {
    "kind": "field",
    "quote": "The following article is Open access … Published 2026 June 3 … Sofia Z. Sheikh et al 2026 AJ 172 1",
    "source": "B2",
    "source_label": "IOPscience — A Search for Radio Technosignatures from Interstellar Object 3I/ATLAS with the ...",
    "locus": "header",
    "modality": "documented"
   },
   "F11": {
    "kind": "field",
    "quote": "Original content from this work may be used under the terms of the Creative Commons Attribution 4.0 licence.",
    "source": "B2",
    "source_label": "IOPscience — A Search for Radio Technosignatures from Interstellar Object 3I/ATLAS with the ...",
    "locus": "licence",
    "modality": "documented"
   },
   "F2": {
    "kind": "field",
    "quote": "Similar to the NASA Voyager missions sent in 1977, science probes by extraterrestrial life (\"artifact technosignatures\") could be sent to explore other stellar systems like our own.",
    "source": "B1",
    "source_label": "arXiv — [2512.18142] A Search for Radio Technosignatures from Interstellar Object 3I/ATLAS with the Allen Telescope Array",
    "locus": "Abstract",
    "modality": "hypothesis"
   },
   "F57": {
    "kind": "field",
    "quote": "Eventually, our own Voyager spacecraft will be extraterrestrial artifacts in other stellar systems,\" Sheikh said in the same statement. \"Given that, it is important that we understand the natural distribution of interstellar objects so that we will be able to identify any anomalies that could one day be signs of an artificial interstellar object.",
    "source": "B7",
    "source_label": "Space — Interstellar comet 3I/ATLAS is not an alien spacecraft: SETI hunt for 'technosignatures' comes up empty | Space",
    "locus": "body",
    "modality": "attributed"
   },
   "F12": {
    "kind": "field",
    "quote": "The most unambiguous observable, however, would be narrowband emission, particularly in the radio, which can only be produced by technological sources.",
    "source": "B2",
    "source_label": "IOPscience — A Search for Radio Technosignatures from Interstellar Object 3I/ATLAS with the ...",
    "locus": "§1.2",
    "modality": "interpretation"
   },
   "F13": {
    "kind": "field",
    "quote": "We note that there is no compelling evidence yet that 3I/ATLAS has any nonnatural characteristics despite extensive observation by the scientific community. However, it is still worth setting constraints on technological radio emission from 3I/ATLAS throughout its passage of our solar system. This is standard practice",
    "source": "B2",
    "source_label": "IOPscience — A Search for Radio Technosignatures from Interstellar Object 3I/ATLAS with the ...",
    "locus": "§1.2",
    "modality": "self-description"
   },
   "F38": {
    "kind": "field",
    "quote": "There is currently no evidence to suggest that it is anything other than a natural astrophysical object.",
    "source": "B4",
    "source_label": "Berkeley SETI — Breakthrough Listen observations of interstellar object 3I/ATLAS",
    "locus": "introduction",
    "modality": "interpretation"
   },
   "F54": {
    "kind": "field",
    "quote": "“The results from 3I/ATLAS show how realistic it is to detect a signal with the technology we have today,” said Dr. Valeria Garcia Lopez",
    "source": "B6",
    "source_label": "Sci.News — Astronomers Scan Interstellar Object 3I/ATLAS for Alien Radio Signals | Sci.News",
    "locus": "body",
    "modality": "attributed"
   },
   "F15": {
    "kind": "field",
    "quote": "We took data across five observing sessions, with a total of 7.25 hr of on-source observations.",
    "source": "B2",
    "source_label": "IOPscience — A Search for Radio Technosignatures from Interstellar Object 3I/ATLAS with the ...",
    "locus": "§2",
    "modality": "documented"
   },
   "F45": {
    "kind": "field",
    "quote": "ATA monitored the frequency space between 1-12 GHz",
    "source": "B5",
    "source_label": "Universe Today — Inside the Massive Radio Search of Our Newest Interstellar Guest",
    "locus": "¶5",
    "modality": "attributed"
   },
   "F16": {
    "kind": "field",
    "quote": "with a minimum drift rate of −4 Hz s−1, a maximum drift rate of 4 Hz s−1, and a signal-to-noise ratio (SNR) threshold of 15",
    "source": "B2",
    "source_label": "IOPscience — A Search for Radio Technosignatures from Interstellar Object 3I/ATLAS with the ...",
    "locus": "§3.1",
    "modality": "documented"
   },
   "F17": {
    "kind": "field",
    "quote": "this survey uses one of the lowest SNR thresholds in any modern SETI survey",
    "source": "B2",
    "source_label": "IOPscience — A Search for Radio Technosignatures from Interstellar Object 3I/ATLAS with the ...",
    "locus": "§3.1",
    "modality": "self-description"
   },
   "F25": {
    "kind": "field",
    "quote": "we identified a total of 73,974,799 narrowband hits across the 7.25 hr of observation. … a total blanked bandwidth of 1269.8 MHz (∼16% of the total bandwidth) we were then left with ∼11 million hits. After drift-rate blanking, ∼2 million hits remained.",
    "source": "B2",
    "source_label": "IOPscience — A Search for Radio Technosignatures from Interstellar Object 3I/ATLAS with the ...",
    "locus": "§4",
    "modality": "documented"
   },
   "F3": {
    "kind": "field",
    "quote": "We detected nearly 74 million narrowband hits in 7.25\\,hr of data using the newly-developed search pipeline bliss.",
    "source": "B1",
    "source_label": "arXiv — [2512.18142] A Search for Radio Technosignatures from Interstellar Object 3I/ATLAS with the Allen Telescope Array",
    "locus": "Abstract",
    "modality": "documented"
   },
   "F36": {
    "kind": "field",
    "quote": "In the future, the blanking ranges for RFI in this project will be explored in more detail",
    "source": "B2",
    "source_label": "IOPscience — A Search for Radio Technosignatures from Interstellar Object 3I/ATLAS with the ...",
    "locus": "§6",
    "modality": "self-description"
   },
   "F18": {
    "kind": "field",
    "quote": "To filter out signals that do not match the dynamics of 3I/ATLAS, we characterized the acceleration of the object during the times of observation, to compare the observed drift rates with those expected from the acceleration between the object and the Earth.",
    "source": "B2",
    "source_label": "IOPscience — A Search for Radio Technosignatures from Interstellar Object 3I/ATLAS with the ...",
    "locus": "§3.2",
    "modality": "stipulation"
   },
   "F19": {
    "kind": "field",
    "quote": "We took the time derivative of the deldot parameter within JPL Horizons, which gives the apparent range rate relative to the observer in km/s.",
    "source": "B2",
    "source_label": "IOPscience — A Search for Radio Technosignatures from Interstellar Object 3I/ATLAS with the ...",
    "locus": "§3.2",
    "modality": "documented"
   },
   "F20": {
    "kind": "field",
    "quote": "The values for all five sessions fell within 3.2 × 10−5 to 3.5 × 10−5 km s−2",
    "source": "B2",
    "source_label": "IOPscience — A Search for Radio Technosignatures from Interstellar Object 3I/ATLAS with the ...",
    "locus": "§3.2",
    "modality": "documented"
   },
   "F21": {
    "kind": "field",
    "quote": "the maximum drift rate of 3I/ATLAS would be 1.01 Hz s−1 … the minimum drift rate of 3I/ATLAS would be 0.15 Hz s−1",
    "source": "B2",
    "source_label": "IOPscience — A Search for Radio Technosignatures from Interstellar Object 3I/ATLAS with the ...",
    "locus": "§3.2",
    "modality": "documented"
   },
   "F61": {
    "kind": "field",
    "quote": "the minimum drift rate of 3I/ATLAS would be 0.15 Hz/s",
    "source": "B8",
    "source_label": "arXiv — A Search for Radio Technosignatures from Interstellar Object 3I/ATLAS with the Allen Telescope Array (v2 full text, HTML and PDF)",
    "locus": "§3.2 (PDF)",
    "modality": "documented"
   },
   "F22": {
    "kind": "field",
    "quote": "However, the rotation or tumbling period of 3I/ATLAS is not yet certain: this contribution, especially in solar system objects, can be extremely large.",
    "source": "B2",
    "source_label": "IOPscience — A Search for Radio Technosignatures from Interstellar Object 3I/ATLAS with the ...",
    "locus": "§3.2",
    "modality": "self-description"
   },
   "F23": {
    "kind": "field",
    "quote": "We filter our hits for drift rates between 0.05 and 1.5 Hz s−1 at all frequencies, sufficient to capture the known acceleration of 3I/ATLAS at all frequencies within our sample with some flexibility for additional rotational contributions.",
    "source": "B2",
    "source_label": "IOPscience — A Search for Radio Technosignatures from Interstellar Object 3I/ATLAS with the ...",
    "locus": "§3.2",
    "modality": "stipulation"
   },
   "F59": {
    "kind": "field",
    "quote": "We filter our hits for drift rates between 0.05–1.5 Hz/s at all frequencies",
    "source": "B8",
    "source_label": "arXiv — A Search for Radio Technosignatures from Interstellar Object 3I/ATLAS with the Allen Telescope Array (v2 full text, HTML and PDF)",
    "locus": "§3.2 (PDF)",
    "modality": "stipulation"
   },
   "F60": {
    "kind": "field",
    "quote": "We filter our hits for drift rates between 0.05--1.5 Hz/s at all frequencies",
    "source": "B8",
    "source_label": "arXiv — A Search for Radio Technosignatures from Interstellar Object 3I/ATLAS with the Allen Telescope Array (v2 full text, HTML and PDF)",
    "locus": "§3.2 (HTML)",
    "modality": "stipulation"
   },
   "F4": {
    "kind": "field",
    "quote": "We then blanked hits by frequency and drift rate to mitigate radio frequency interference in our dataset, narrowing the dataset down to ~2 million hits.",
    "source": "B1",
    "source_label": "arXiv — [2512.18142] A Search for Radio Technosignatures from Interstellar Object 3I/ATLAS with the Allen Telescope Array",
    "locus": "Abstract",
    "modality": "documented"
   },
   "F26": {
    "kind": "field",
    "quote": "Applying blanking ranges and drift-rate limits significantly reduced dense clusters of hits (reducing the total number of hits by 97.4%)",
    "source": "B2",
    "source_label": "IOPscience — A Search for Radio Technosignatures from Interstellar Object 3I/ATLAS with the ...",
    "locus": "§4, Figure 3 caption",
    "modality": "documented"
   },
   "F35": {
    "kind": "field",
    "quote": "as far as we know, this is the first time that expected drift-rate contributions have been used as a filter for a technosignature search of a solar system object",
    "source": "B2",
    "source_label": "IOPscience — A Search for Radio Technosignatures from Interstellar Object 3I/ATLAS with the ...",
    "locus": "§6",
    "modality": "self-description"
   },
   "F24": {
    "kind": "field",
    "quote": "Note the peak of hits around 0 Hz s−1 (expected because most RFI transmitters are in the same reference frame as the telescope, i.e., on the ground). After the drift-rate cut, the count of hits is much more even across the restricted drift-rate range.",
    "source": "B2",
    "source_label": "IOPscience — A Search for Radio Technosignatures from Interstellar Object 3I/ATLAS with the ...",
    "locus": "§4, Figure 4 caption",
    "modality": "documented"
   },
   "A1742-03": {
    "kind": "archive",
    "quote": "The text gives no sign. Figure 4 does: its \"Drift Rate Range Hits\" occupy 0 to +1.5 Hz/s on the signed axis and none of the negative half.",
    "deposit": 1742,
    "source_label": "#1742 What the Filters Kept: 3I/ATLAS, the Loeb Overview, and a Public-Data Signal Search (EA-3I-ATLAS-NOTEBOOK-01 v1.2)",
    "record": "https://www.alexanarch.org/s/records/1742/",
    "locus": "§5.1",
    "modality": "documented",
    "date": "2026-11-06"
   },
   "A1742-04": {
    "kind": "archive",
    "quote": "A rising range-rate lowers the received frequency, so a positive acceleration gives a negative drift.",
    "deposit": 1742,
    "source_label": "#1742 What the Filters Kept: 3I/ATLAS, the Loeb Overview, and a Public-Data Signal Search (EA-3I-ATLAS-NOTEBOOK-01 v1.2)",
    "record": "https://www.alexanarch.org/s/records/1742/",
    "locus": "§5.1.1",
    "modality": "stipulation",
    "date": "2026-11-06"
   },
   "A1742-05": {
    "kind": "archive",
    "quote": "the drift of a constant tone riding on the object is −0.125 Hz/s at 1075 MHz and −0.19 Hz/s at 1623.75 MHz. All six public ATA sessions show the same sign",
    "deposit": 1742,
    "source_label": "#1742 What the Filters Kept: 3I/ATLAS, the Loeb Overview, and a Public-Data Signal Search (EA-3I-ATLAS-NOTEBOOK-01 v1.2)",
    "record": "https://www.alexanarch.org/s/records/1742/",
    "locus": "§5.1.1",
    "modality": "documented",
    "date": "2026-11-06"
   },
   "A1742-06": {
    "kind": "archive",
    "quote": "The ATA filterbanks carry a positive channel spacing (foff +1.907 Hz, checked on the July 3 LoA.C1504 beam-0 header), so a reported drift needs no sign flip to mean what it says",
    "deposit": 1742,
    "source_label": "#1742 What the Filters Kept: 3I/ATLAS, the Loeb Overview, and a Public-Data Signal Search (EA-3I-ATLAS-NOTEBOOK-01 v1.2)",
    "record": "https://www.alexanarch.org/s/records/1742/",
    "locus": "§5.1.1",
    "modality": "documented",
    "date": "2026-11-06"
   },
   "A1742-07": {
    "kind": "archive",
    "quote": "The paper derived the right magnitude, gave it the sign of the acceleration, and its figure retains the positive interval. On the paper's own figure, the drift it computed for an emitter on 3I/ATLAS lies in the half its filter removed.",
    "deposit": 1742,
    "source_label": "#1742 What the Filters Kept: 3I/ATLAS, the Loeb Overview, and a Public-Data Signal Search (EA-3I-ATLAS-NOTEBOOK-01 v1.2)",
    "record": "https://www.alexanarch.org/s/records/1742/",
    "locus": "§5.1.2",
    "modality": "interpretation",
    "date": "2026-11-06"
   },
   "A1743-03": {
    "kind": "archive",
    "quote": "The paper got the size of the drift right and gave it the wrong sign. On its own figure, the drift it computed for a transmitter on 3I/ATLAS falls in the half its filter threw away.",
    "deposit": 1743,
    "source_label": "#1743 A Firm No: What the 3I/ATLAS Radio Searches Could See (EA-3I-ATLAS-PUBLIC-01 v1.1)",
    "record": "https://www.alexanarch.org/s/records/1743/",
    "locus": "What the ATA's filter kept",
    "modality": "interpretation",
    "date": "2026-11-06"
   },
   "A1742-08": {
    "kind": "archive",
    "quote": "The executed filter script and the signed before/after catalogues have not been obtained, so the claim stands on the manuscript, the figure and the physics; it does not show that a transmission was discarded. A search of part of the excluded class found no convincing signal (ChatGPT, 2026-11-02).",
    "deposit": 1742,
    "source_label": "#1742 What the Filters Kept: 3I/ATLAS, the Loeb Overview, and a Public-Data Signal Search (EA-3I-ATLAS-NOTEBOOK-01 v1.2)",
    "record": "https://www.alexanarch.org/s/records/1742/",
    "locus": "§5.1.2",
    "modality": "self-description",
    "date": "2026-11-06"
   },
   "A1743-04": {
    "kind": "archive",
    "quote": "It shows that the documented method removed the class of signals it set out to keep. It does not show that a transmission was discarded. I haven't seen the executed filter code or the before-and-after hit lists, so the claim rests on the manuscript, the figure and the physics.",
    "deposit": 1743,
    "source_label": "#1743 A Firm No: What the 3I/ATLAS Radio Searches Could See (EA-3I-ATLAS-PUBLIC-01 v1.1)",
    "record": "https://www.alexanarch.org/s/records/1743/",
    "locus": "What the ATA's filter kept",
    "modality": "self-description",
    "date": "2026-11-06"
   },
   "SM-01": {
    "kind": "archive",
    "quote": "the paper derives the drift's magnitude correctly from the Horizons range-rate and reports it as a positive number (\"the minimum drift rate of 3I/ATLAS would be 0.15 Hz/s\"). The number stands for a signed quantity whose sign is negative at every ATA session (notebook §5.1.1). The interval built from it, plotted on a signed axis, keeps 0 to +1.5 Hz/s.",
    "deposit": null,
    "source_label": "The sophistry measure on the 3I/ATLAS record: first run, 2026-11-06 (EA-SOPHISTRY-01, #1727; rebuild/3i-atlas-signal-search/claude/run-2026-11-03/sophistry/)",
    "record": "https://www.alexanarch.org/rebuild/3i-atlas-signal-search/claude/run-2026-11-03/sophistry/FINDINGS-sophistry.md",
    "locus": "FINDINGS-sophistry.md, S6, Reconstruction",
    "modality": "interpretation",
    "date": "2026-11-06"
   },
   "SM-02": {
    "kind": "archive",
    "quote": "homonymy at the counter-board (#1727 §2.1): one name, \"the drift rate of 3I/ATLAS\", standing for a magnitude and for a signed rate.",
    "deposit": null,
    "source_label": "The sophistry measure on the 3I/ATLAS record: first run, 2026-11-06 (EA-SOPHISTRY-01, #1727; rebuild/3i-atlas-signal-search/claude/run-2026-11-03/sophistry/)",
    "record": "https://www.alexanarch.org/rebuild/3i-atlas-signal-search/claude/run-2026-11-03/sophistry/FINDINGS-sophistry.md",
    "locus": "FINDINGS-sophistry.md, S6, Type",
    "modality": "interpretation",
    "date": "2026-11-06"
   },
   "SM-03": {
    "kind": "archive",
    "quote": "an error in a published method. The appearance offered (a filter matched to the object's dynamics) and the performance it stands in for (the match) are both in the text; no commercial relation is in question. No sophistic charge is made; the operation is recorded.",
    "deposit": null,
    "source_label": "The sophistry measure on the 3I/ATLAS record: first run, 2026-11-06 (EA-SOPHISTRY-01, #1727; rebuild/3i-atlas-signal-search/claude/run-2026-11-03/sophistry/)",
    "record": "https://www.alexanarch.org/rebuild/3i-atlas-signal-search/claude/run-2026-11-03/sophistry/FINDINGS-sophistry.md",
    "locus": "FINDINGS-sophistry.md, S6, The class question",
    "modality": "self-description",
    "date": "2026-11-06"
   },
   "O1727-01": {
    "kind": "archive",
    "quote": "Consequence: homonymy is a condition of every compression, and the first topos is the counter-board itself.",
    "deposit": 1727,
    "source_label": "#1727 The Sophistry Measure: the Sophistical Refutations Read as an Instrument for Machine-Composed Knowledge (EA-SOPHISTRY-01 v1.0)",
    "record": "https://www.alexanarch.org/s/records/1727/",
    "locus": "§2.1",
    "modality": "stipulation",
    "date": "2026-11-01"
   },
   "SM-04": {
    "kind": "archive",
    "quote": "the drift of a tone fixed on 3I/ATLAS is negative throughout these sessions (−0.125 to −0.19 Hz/s at 1075–1624 MHz); our interval, +0.05 to +1.5 Hz/s, retains the opposite sign.",
    "deposit": null,
    "source_label": "The sophistry measure on the 3I/ATLAS record: first run, 2026-11-06 (EA-SOPHISTRY-01, #1727; rebuild/3i-atlas-signal-search/claude/run-2026-11-03/sophistry/)",
    "record": "https://www.alexanarch.org/rebuild/3i-atlas-signal-search/claude/run-2026-11-03/sophistry/FINDINGS-sophistry.md",
    "locus": "FINDINGS-sophistry.md, S6, Smallest repair",
    "modality": "stipulation",
    "date": "2026-11-06"
   },
   "A1742-12": {
    "kind": "archive",
    "quote": "The ATA paper's retained interval (+0.05 to +1.5 Hz/s) excludes zero drift, in keeping with the general practice of treating zero-drift narrowband hits as terrestrial. A sender that pre-compensates its Doppler for the receiving telescope arrives at zero drift.",
    "deposit": 1742,
    "source_label": "#1742 What the Filters Kept: 3I/ATLAS, the Loeb Overview, and a Public-Data Signal Search (EA-3I-ATLAS-NOTEBOOK-01 v1.2)",
    "record": "https://www.alexanarch.org/s/records/1742/",
    "locus": "§5.3",
    "modality": "interpretation",
    "date": "2026-11-06"
   },
   "A1742-09": {
    "kind": "archive",
    "quote": "No published comment, erratum or critique raising the sign was found (searches of 2026-11-03).",
    "deposit": 1742,
    "source_label": "#1742 What the Filters Kept: 3I/ATLAS, the Loeb Overview, and a Public-Data Signal Search (EA-3I-ATLAS-NOTEBOOK-01 v1.2)",
    "record": "https://www.alexanarch.org/s/records/1742/",
    "locus": "§5.1.3",
    "modality": "documented",
    "date": "2026-11-06"
   },
   "A1742-10": {
    "kind": "archive",
    "quote": "The Green Bank paper (arXiv:2512.19763) searched ±4 Hz/s with a sky-localisation filter and describes no drift cut.",
    "deposit": 1742,
    "source_label": "#1742 What the Filters Kept: 3I/ATLAS, the Loeb Overview, and a Public-Data Signal Search (EA-3I-ATLAS-NOTEBOOK-01 v1.2)",
    "record": "https://www.alexanarch.org/s/records/1742/",
    "locus": "§5.1.3",
    "modality": "documented",
    "date": "2026-11-06"
   },
   "F42": {
    "kind": "field",
    "quote": "Data from the ATA are available here.",
    "source": "B4",
    "source_label": "Berkeley SETI — Breakthrough Listen observations of interstellar object 3I/ATLAS",
    "locus": "Data",
    "modality": "documented"
   },
   "A1742-13": {
    "kind": "archive",
    "quote": "open look along the true comet path (the drift class the filter removed), its sign-flipped twin and dish-fixed, beam swap; exploratory | Claude | true path inside the flipped path's and swap's spread at every frequency; nothing recurs in more than two of 16 scans",
    "deposit": 1742,
    "source_label": "#1742 What the Filters Kept: 3I/ATLAS, the Loeb Overview, and a Public-Data Signal Search (EA-3I-ATLAS-NOTEBOOK-01 v1.2)",
    "record": "https://www.alexanarch.org/s/records/1742/",
    "locus": "§6, table",
    "modality": "documented",
    "date": "2026-11-06"
   },
   "A1742-14": {
    "kind": "archive",
    "quote": "ATA 2025-07-08, 6376–9064 MHz, fourteen windows | the same look: methanol, OH 7761 and 7820, DSN X-band 8400–8450; exploratory | Claude | true path inside the flipped path's and swaps' spread at every window; nothing recurs in more than two of 41 scans",
    "deposit": 1742,
    "source_label": "#1742 What the Filters Kept: 3I/ATLAS, the Loeb Overview, and a Public-Data Signal Search (EA-3I-ATLAS-NOTEBOOK-01 v1.2)",
    "record": "https://www.alexanarch.org/s/records/1742/",
    "locus": "§6, table",
    "modality": "documented",
    "date": "2026-11-06"
   },
   "A1743-05": {
    "kind": "archive",
    "quote": "The discrepancy hid nothing that this look could see. It is still a discrepancy in a published method, and the public verdict was built on it.",
    "deposit": 1743,
    "source_label": "#1743 A Firm No: What the 3I/ATLAS Radio Searches Could See (EA-3I-ATLAS-PUBLIC-01 v1.1)",
    "record": "https://www.alexanarch.org/s/records/1743/",
    "locus": "What the ATA's filter kept",
    "modality": "interpretation",
    "date": "2026-11-06"
   },
   "A1743-06": {
    "kind": "archive",
    "quote": "So correcting the ATA's sign would not have made these features visible to the ATA. The ATA's absence at their frequencies says nothing about them, one way or the other. What the sign error removed is a class; what the thirteen are is a separate question.",
    "deposit": 1743,
    "source_label": "#1743 A Firm No: What the 3I/ATLAS Radio Searches Could See (EA-3I-ATLAS-PUBLIC-01 v1.1)",
    "record": "https://www.alexanarch.org/s/records/1743/",
    "locus": "Thirteen features under the floor",
    "modality": "interpretation",
    "date": "2026-11-06"
   },
   "F46": {
    "kind": "field",
    "quote": "Then they filtered for signals only matching the acceleration (red-shift) expected by 3I/ATLAS - a new feature of the bliss signal pipeline.",
    "source": "B5",
    "source_label": "Universe Today — Inside the Massive Radio Search of Our Newest Interstellar Guest",
    "locus": "¶6",
    "modality": "attributed"
   },
   "F56": {
    "kind": "field",
    "quote": "The researchers identified nearly 74 million such signals, which they then culled to about 200 after eliminating human interference and filtering out artifacts caused by 3I/ATLAS' movement. They were then able to explain away those final 200 as well, as signals generated here on Earth or by orbiting satellites.",
    "source": "B7",
    "source_label": "Space — Interstellar comet 3I/ATLAS is not an alien spacecraft: SETI hunt for 'technosignatures' comes up empty | Space",
    "locus": "body",
    "modality": "attributed"
   },
   "F5": {
    "kind": "field",
    "quote": "These hits were further filtered by the localization code NBeamAnalysis, and the remaining 211 hits were visually inspected in the time-frequency domain.",
    "source": "B1",
    "source_label": "arXiv — [2512.18142] A Search for Radio Technosignatures from Interstellar Object 3I/ATLAS with the Allen Telescope Array",
    "locus": "Abstract",
    "modality": "documented"
   },
   "F27": {
    "kind": "field",
    "quote": "The NBeamAnalysis pipeline employs a series of different procedures which leverage two beams to identify signals that are consistent with a localized point source on the sky",
    "source": "B2",
    "source_label": "IOPscience — A Search for Radio Technosignatures from Interstellar Object 3I/ATLAS with the ...",
    "locus": "§3.3",
    "modality": "stipulation"
   },
   "F28": {
    "kind": "field",
    "quote": "Of these plots, 11 are events with SNR ratios greater than 5.29 … The remaining 200 plots were from two observations that did not produce any final signals above the threshold, resulting in the backup plotting functionality",
    "source": "B2",
    "source_label": "IOPscience — A Search for Radio Technosignatures from Interstellar Object 3I/ATLAS with the ...",
    "locus": "§4",
    "modality": "documented"
   },
   "F29": {
    "kind": "field",
    "quote": "After visual inspection, all of these 211 events were easily attributable to RFI: none of the 11 sky-localized events depict narrowband drifting signals, and the narrowband drifting signals in the remaining 200 plots are not consistent with a sky-localized signal coming from 3I/Atlas, therefore zero outputs depict nonterrestrial technological signals.",
    "source": "B2",
    "source_label": "IOPscience — A Search for Radio Technosignatures from Interstellar Object 3I/ATLAS with the ...",
    "locus": "§4",
    "modality": "documented"
   },
   "F30": {
    "kind": "field",
    "quote": "this frequency is consistent with the L-band downlink for the Iridium satellites … satellites and other distant human transmitters can mimic the characteristics that we would expect from a true ETI technosignature",
    "source": "B2",
    "source_label": "IOPscience — A Search for Radio Technosignatures from Interstellar Object 3I/ATLAS with the ...",
    "locus": "§4, Figure 7 caption",
    "modality": "interpretation"
   },
   "F31": {
    "kind": "field",
    "quote": "the signal has a similar SNR in both the on-beam and the off-beam, indicating a local interferer in the allocation allotted to fixed-satellite service (Earth-to-space)",
    "source": "B2",
    "source_label": "IOPscience — A Search for Radio Technosignatures from Interstellar Object 3I/ATLAS with the ...",
    "locus": "§4, Figure 8 caption",
    "modality": "interpretation"
   },
   "F41": {
    "kind": "field",
    "quote": "The diagonal stripe at the center is visible in observations of 3I/ATLAS as well as in off-target observations - characteristics expected from local (human) sources of interference - and hence can be rejected as a candidate technosignature",
    "source": "B4",
    "source_label": "Berkeley SETI — Breakthrough Listen observations of interstellar object 3I/ATLAS",
    "locus": "Allen Telescope Array, figure caption",
    "modality": "interpretation"
   },
   "A1742-11": {
    "kind": "archive",
    "quote": "Figure 8 shows similar strength in both beams, which supports rejection as an unlocalised source without identifying it. The published sentence (\"every single one turned out to be human-made interference\") states an identification where the procedure supplies a classification. The raw-data audit of all 211 events has not been done.",
    "deposit": 1742,
    "source_label": "#1742 What the Filters Kept: 3I/ATLAS, the Loeb Overview, and a Public-Data Signal Search (EA-3I-ATLAS-NOTEBOOK-01 v1.2)",
    "record": "https://www.alexanarch.org/s/records/1742/",
    "locus": "§5.2",
    "modality": "interpretation",
    "date": "2026-11-06"
   },
   "SM-05": {
    "kind": "archive",
    "quote": "Naming what was removed \"human-made\" before the conclusion is drawn puts the conclusion among the premises: whatever the rules removed is human by name, so nothing artificial can remain in what they removed.",
    "deposit": null,
    "source_label": "The sophistry measure on the 3I/ATLAS record: first run, 2026-11-06 (EA-SOPHISTRY-01, #1727; rebuild/3i-atlas-signal-search/claude/run-2026-11-03/sophistry/)",
    "record": "https://www.alexanarch.org/rebuild/3i-atlas-signal-search/claude/run-2026-11-03/sophistry/FINDINGS-sophistry.md",
    "locus": "FINDINGS-sophistry.md, S4, Reconstruction",
    "modality": "interpretation",
    "date": "2026-11-06"
   },
   "F47": {
    "kind": "field",
    "quote": "each one was determined to be caused by Earth-based radio frequency interference that had slipped through the automated filtering process. As such, the ATA team ended with a “null” result",
    "source": "B5",
    "source_label": "Universe Today — Inside the Massive Radio Search of Our Newest Interstellar Guest",
    "locus": "¶7",
    "modality": "attributed"
   },
   "F50": {
    "kind": "field",
    "quote": "astronomers probed 3I/ATLAS for artificial radio transmissions but found only human-made interference",
    "source": "B6",
    "source_label": "Sci.News — Astronomers Scan Interstellar Object 3I/ATLAS for Alien Radio Signals | Sci.News",
    "locus": "lede",
    "modality": "attributed"
   },
   "F51": {
    "kind": "field",
    "quote": "After removing human interference and filtering for signals matching the object’s movement, only about 200 remained for review. All traced back to technology on the surface of the Earth or our own Earth-orbiting satellites.",
    "source": "B6",
    "source_label": "Sci.News — Astronomers Scan Interstellar Object 3I/ATLAS for Alien Radio Signals | Sci.News",
    "locus": "body",
    "modality": "attributed"
   },
   "F6": {
    "kind": "field",
    "quote": "We did not find any signals worthy of additional follow-up.",
    "source": "B1",
    "source_label": "arXiv — [2512.18142] A Search for Radio Technosignatures from Interstellar Object 3I/ATLAS with the Allen Telescope Array",
    "locus": "Abstract",
    "modality": "documented"
   },
   "F39": {
    "kind": "field",
    "quote": "No technosignatures have been detected in any of these searches.",
    "source": "B4",
    "source_label": "Berkeley SETI — Breakthrough Listen observations of interstellar object 3I/ATLAS",
    "locus": "introduction",
    "modality": "documented"
   },
   "F7": {
    "kind": "field",
    "quote": "Accounting for the Doppler drift correction and given the non-detection, we are able to set an effective isotropic radiated power upper limit of 10-110 W on radio technosignatures from 3I/ATLAS across the frequency and drift rate ranges covered by our survey.",
    "source": "B1",
    "source_label": "arXiv — [2512.18142] A Search for Radio Technosignatures from Interstellar Object 3I/ATLAS with the Allen Telescope Array",
    "locus": "Abstract",
    "modality": "documented"
   },
   "F34": {
    "kind": "field",
    "quote": "This result implies EIRP upper limits of 10–110 W across our frequency and drift-rate range.",
    "source": "B2",
    "source_label": "IOPscience — A Search for Radio Technosignatures from Interstellar Object 3I/ATLAS with the ...",
    "locus": "§6",
    "modality": "documented"
   },
   "F32": {
    "kind": "field",
    "quote": "Our system achieves maximum dechirping efficiency for drift rates of 0.113 Hz s−1 or less, with sensitivity getting gradually worse as the drift rates increase. … We also calculated a worst-case EIRP for the lowest dechirping efficiencies in our survey (i.e., those corresponding to 1.5 Hz s−1)",
    "source": "B2",
    "source_label": "IOPscience — A Search for Radio Technosignatures from Interstellar Object 3I/ATLAS with the ...",
    "locus": "§5",
    "modality": "documented"
   },
   "F33": {
    "kind": "field",
    "quote": "the authors report a minimum EIRP value of 0.17 W. This value is about commensurate with a cellphone handset, significantly more sensitive than this work … this work increases the frequencies covered for 3I/ATLAS by a factor of 10",
    "source": "B2",
    "source_label": "IOPscience — A Search for Radio Technosignatures from Interstellar Object 3I/ATLAS with the ...",
    "locus": "§5",
    "modality": "attributed"
   },
   "O1450-01": {
    "kind": "archive",
    "quote": "A null result constrains only those hypotheses for which the end-to-end acceptance of the acquisition and analysis chain is sufficiently characterized.",
    "deposit": 1450,
    "source_label": "#1450 The Iceberg Document: Instrument-Conditioned Nullity, Correlated Blind Spots, and the Conditions for Continued Surprise (EA-SEI-ICEBERG-01 v1.0)",
    "record": "https://www.alexanarch.org/s/records/1450/",
    "locus": "§3.2",
    "modality": "stipulation",
    "date": "2026-08-11"
   },
   "A1742-02": {
    "kind": "archive",
    "quote": "The scope of a null is set by what its filters retained. The ATA paper reduced roughly 74 million hits to 211 plotted events through frequency blanking (for instance 1075–1116 MHz), a signed drift-rate interval, beam comparison and visual selection.",
    "deposit": 1742,
    "source_label": "#1742 What the Filters Kept: 3I/ATLAS, the Loeb Overview, and a Public-Data Signal Search (EA-3I-ATLAS-NOTEBOOK-01 v1.2)",
    "record": "https://www.alexanarch.org/s/records/1742/",
    "locus": "§2.3",
    "modality": "interpretation",
    "date": "2026-11-06"
   },
   "A1742-16": {
    "kind": "archive",
    "quote": "The three published searches characterize their acceptance in part: frequencies, drift intervals, thresholds and power limits are stated (the ATA's 10–110 W, Green Bank's 100 mW). What they do not characterize is retention below their detection thresholds or in the drift class the ATA interval removed by sign (§5.1).",
    "deposit": 1742,
    "source_label": "#1742 What the Filters Kept: 3I/ATLAS, the Loeb Overview, and a Public-Data Signal Search (EA-3I-ATLAS-NOTEBOOK-01 v1.2)",
    "record": "https://www.alexanarch.org/s/records/1742/",
    "locus": "§9.3",
    "modality": "interpretation",
    "date": "2026-11-06"
   },
   "A1742-17": {
    "kind": "archive",
    "quote": "None of them bounds what a transmitter on the object, drifting negative, would have retained end to end, and the paper's own figure places that class outside the second stage's support.",
    "deposit": 1742,
    "source_label": "#1742 What the Filters Kept: 3I/ATLAS, the Loeb Overview, and a Public-Data Signal Search (EA-3I-ATLAS-NOTEBOOK-01 v1.2)",
    "record": "https://www.alexanarch.org/s/records/1742/",
    "locus": "§9.4",
    "modality": "interpretation",
    "date": "2026-11-06"
   },
   "O1450-02": {
    "kind": "archive",
    "quote": "Validation of each stage on its design and validation support establishes no nontrivial lower bound on R_end(Q) for a novelty distribution Q outside that characterized support",
    "deposit": 1450,
    "source_label": "#1450 The Iceberg Document: Instrument-Conditioned Nullity, Correlated Blind Spots, and the Conditions for Continued Surprise (EA-SEI-ICEBERG-01 v1.0)",
    "record": "https://www.alexanarch.org/s/records/1450/",
    "locus": "§2.1",
    "modality": "stipulation",
    "date": "2026-08-11"
   },
   "A1742-20": {
    "kind": "archive",
    "quote": "The ATA filter is a model of the object (its dynamics, by the paper's own statement of purpose) placed at the interface. Its distributional consequence, what it retained of hits matching the object, is unmeasured in the paper, and the signed before-and-after catalogues that would measure it have not been obtained (§10.1).",
    "deposit": 1742,
    "source_label": "#1742 What the Filters Kept: 3I/ATLAS, the Loeb Overview, and a Public-Data Signal Search (EA-3I-ATLAS-NOTEBOOK-01 v1.2)",
    "record": "https://www.alexanarch.org/s/records/1742/",
    "locus": "§9.7",
    "modality": "interpretation",
    "date": "2026-11-06"
   },
   "A1743-08": {
    "kind": "archive",
    "quote": "What the filter kept of signals moving with the object isn't measured anywhere in the paper.",
    "deposit": 1743,
    "source_label": "#1743 A Firm No: What the 3I/ATLAS Radio Searches Could See (EA-3I-ATLAS-PUBLIC-01 v1.1)",
    "record": "https://www.alexanarch.org/s/records/1743/",
    "locus": "A search built to say no",
    "modality": "interpretation",
    "date": "2026-11-06"
   },
   "A1742-19": {
    "kind": "archive",
    "quote": "The three published searches share one approach: narrowband hits found above a threshold, scan by scan, then cut by drift rate and localization. Their miss regions overlap by construction; three telescopes running it are three instruments with one blind spot, so redundancy among them adds little below the shared floor.",
    "deposit": 1742,
    "source_label": "#1742 What the Filters Kept: 3I/ATLAS, the Loeb Overview, and a Public-Data Signal Search (EA-3I-ATLAS-NOTEBOOK-01 v1.2)",
    "record": "https://www.alexanarch.org/s/records/1742/",
    "locus": "§9.6",
    "modality": "interpretation",
    "date": "2026-11-06"
   },
   "O1450-04": {
    "kind": "archive",
    "quote": "Two mediocre instruments with anti-correlated blind spots can be epistemically healthier than two excellent instruments that miss identical things.",
    "deposit": 1450,
    "source_label": "#1450 The Iceberg Document: Instrument-Conditioned Nullity, Correlated Blind Spots, and the Conditions for Continued Surprise (EA-SEI-ICEBERG-01 v1.0)",
    "record": "https://www.alexanarch.org/s/records/1450/",
    "locus": "§2.3",
    "modality": "interpretation",
    "date": "2026-08-11"
   },
   "A1742-15": {
    "kind": "archive",
    "quote": "Three operations are kept apart below: a measurement boundary a search sets and states (a threshold, a band, a drift range); a discrepancy between a stated method and its own derivation (the ATA sign, §5.1); and a public statement that drops the boundary (\"a firm one\", the FAQ's 1–9 GHz). A threshold forecloses nothing by existing; the problem arises where a claim exceeds the acceptance its search characterized.",
    "deposit": 1742,
    "source_label": "#1742 What the Filters Kept: 3I/ATLAS, the Loeb Overview, and a Public-Data Signal Search (EA-3I-ATLAS-NOTEBOOK-01 v1.2)",
    "record": "https://www.alexanarch.org/s/records/1742/",
    "locus": "§9.2a",
    "modality": "stipulation",
    "date": "2026-11-06"
   },
   "A1743-01": {
    "kind": "archive",
    "quote": "Each states the frequencies and drift rates it searched, and the ATA ties its power limit, 10 to 110 watts, to them.",
    "deposit": 1743,
    "source_label": "#1743 A Firm No: What the 3I/ATLAS Radio Searches Could See (EA-3I-ATLAS-PUBLIC-01 v1.1)",
    "record": "https://www.alexanarch.org/s/records/1743/",
    "locus": "The firm no",
    "modality": "documented",
    "date": "2026-11-06"
   },
   "A1743-10": {
    "kind": "archive",
    "quote": "A scope-bearing sentence would have cost almost nothing: *no narrowband signal above these strengths, within these drift rates, in these bands, on these dates.* That sentence is true, and it leaves room for what it doesn't cover.",
    "deposit": 1743,
    "source_label": "#1743 A Firm No: What the 3I/ATLAS Radio Searches Could See (EA-3I-ATLAS-PUBLIC-01 v1.1)",
    "record": "https://www.alexanarch.org/s/records/1743/",
    "locus": "What the public was told",
    "modality": "stipulation",
    "date": "2026-11-06"
   },
   "F40": {
    "kind": "field",
    "quote": "Data were acquired across frequencies of 1 - 9 GHz, reaching sensitivities between 10 - 110 W equivalent isotropic radiated power (EIRP). A publication reporting the results of the analysis has been submitted for peer review",
    "source": "B4",
    "source_label": "Berkeley SETI — Breakthrough Listen observations of interstellar object 3I/ATLAS",
    "locus": "Allen Telescope Array",
    "modality": "documented"
   },
   "F43": {
    "kind": "field",
    "quote": "In summary, 3I/ATLAS continues to behave as expected from natural astrophysical processes.",
    "source": "B4",
    "source_label": "Berkeley SETI — Breakthrough Listen observations of interstellar object 3I/ATLAS",
    "locus": "summary",
    "modality": "interpretation"
   },
   "F52": {
    "kind": "field",
    "quote": "While no technosignatures were found, the study sets new constraints reinforcing that 3I/ATLAS is a natural object.",
    "source": "B6",
    "source_label": "Sci.News — Astronomers Scan Interstellar Object 3I/ATLAS for Alien Radio Signals | Sci.News",
    "locus": "body",
    "modality": "attributed"
   },
   "F53": {
    "kind": "field",
    "quote": "The observations place upper limits on the power of any radio transmitter on or near 3I/ATLAS, ruling out signals stronger than about 10-110 W — approximately the power of a household appliance — over the detected frequencies.",
    "source": "B6",
    "source_label": "Sci.News — Astronomers Scan Interstellar Object 3I/ATLAS for Alien Radio Signals | Sci.News",
    "locus": "body",
    "modality": "attributed"
   },
   "F58": {
    "kind": "field",
    "quote": "\"sets new constraints reinforcing that 3I/ATLAS is a natural object,\" SETI Institute officials wrote in the same statement.",
    "source": "B7",
    "source_label": "Space — Interstellar comet 3I/ATLAS is not an alien spacecraft: SETI hunt for 'technosignatures' comes up empty | Space",
    "locus": "body",
    "modality": "attributed"
   },
   "F37": {
    "kind": "field",
    "quote": "While no technosignatures were found, the study sets new constraints reinforcing that 3I/ATLAS is a natural object.",
    "source": "B3",
    "source_label": "Phys.org — Interstellar object 3I/ATLAS reveals no technosignatures in seven-hour radio ...",
    "locus": "card snippet",
    "modality": "attributed"
   },
   "F44": {
    "kind": "field",
    "quote": "It feels like every week now we’re writing a new article about how 3I/ATLAS is not an alien technology. But it’s worth re-iterating, and perhaps taking a look at the methodology we used to prove that statement.",
    "source": "B5",
    "source_label": "Universe Today — Inside the Massive Radio Search of Our Newest Interstellar Guest",
    "locus": "¶1",
    "modality": "interpretation"
   },
   "F48": {
    "kind": "field",
    "quote": "That null result comes with a caveat, though. … For a 1 GHz signal, they calculated it would be around 10 watts - about 5 times the power of a typical cell phone. At 9 GHz, this power jumps up to around 110 watts.",
    "source": "B5",
    "source_label": "Universe Today — Inside the Massive Radio Search of Our Newest Interstellar Guest",
    "locus": "¶8",
    "modality": "attributed"
   },
   "F49": {
    "kind": "field",
    "quote": "But it seems pretty clear that a civilization advanced enough to intentionally send an interstellar object to another system would put in a radio transmitter that was stronger than two light bulbs put together.",
    "source": "B5",
    "source_label": "Universe Today — Inside the Massive Radio Search of Our Newest Interstellar Guest",
    "locus": "¶8",
    "modality": "interpretation"
   },
   "F55": {
    "kind": "field",
    "quote": "Sorry, true believers: It appears the interstellar comet 3I/ATLAS is indeed just a comet.",
    "source": "B7",
    "source_label": "Space — Interstellar comet 3I/ATLAS is not an alien spacecraft: SETI hunt for 'technosignatures' comes up empty | Space",
    "locus": "lede",
    "modality": "interpretation"
   },
   "A1742-21": {
    "kind": "archive",
    "quote": "The public account compresses them to a closed question. Intelligent Living (2026-09-11, updated 2026-09-30): \"The question everyone was waiting for has an answer, and it is a firm one.\"",
    "deposit": 1742,
    "source_label": "#1742 What the Filters Kept: 3I/ATLAS, the Loeb Overview, and a Public-Data Signal Search (EA-3I-ATLAS-NOTEBOOK-01 v1.2)",
    "record": "https://www.alexanarch.org/s/records/1742/",
    "locus": "§2.2",
    "modality": "attributed",
    "date": "2026-11-06"
   },
   "A1743-02": {
    "kind": "archive",
    "quote": "Its FAQ then drops the restrictions: \"The ATA survey ruled out any transmitter stronger than roughly 10 to 110 watts across 1 to 9 GHz.\" The paper's limit holds for the frequencies it kept and the drift rates it kept. The FAQ's holds for everything.",
    "deposit": 1743,
    "source_label": "#1743 A Firm No: What the 3I/ATLAS Radio Searches Could See (EA-3I-ATLAS-PUBLIC-01 v1.1)",
    "record": "https://www.alexanarch.org/s/records/1743/",
    "locus": "The firm no",
    "modality": "interpretation",
    "date": "2026-11-06"
   },
   "SM-06": {
    "kind": "archive",
    "quote": "The paper's 211 are what remained after frequency, drift and localization filtering (its abstract gives \"~2 million hits\" after the first cuts, and 211 after localization). The article reports a set made by an operation (filtering) as a property of its members (strength), and a classification as an identification (notebook §5.2).",
    "deposit": null,
    "source_label": "The sophistry measure on the 3I/ATLAS record: first run, 2026-11-06 (EA-SOPHISTRY-01, #1727; rebuild/3i-atlas-signal-search/claude/run-2026-11-03/sophistry/)",
    "record": "https://www.alexanarch.org/rebuild/3i-atlas-signal-search/claude/run-2026-11-03/sophistry/FINDINGS-sophistry.md",
    "locus": "FINDINGS-sophistry.md, S7, Reconstruction (b)",
    "modality": "interpretation",
    "date": "2026-11-06"
   },
   "A1743-11": {
    "kind": "archive",
    "quote": "A sign error in a drift filter travelled nowhere at all.",
    "deposit": 1743,
    "source_label": "#1743 A Firm No: What the 3I/ATLAS Radio Searches Could See (EA-3I-ATLAS-PUBLIC-01 v1.1)",
    "record": "https://www.alexanarch.org/s/records/1743/",
    "locus": "What the public was told",
    "modality": "interpretation",
    "date": "2026-11-06"
   },
   "F62": {
    "kind": "field",
    "quote": "On 16 July 2025, astrophysicist Avi Loeb and other researchers of the Initiative for Interstellar Studies posted a paper on arXiv speculating that 3I/ATLAS could be an extraterrestrial spacecraft",
    "source": "B9",
    "source_label": "Wikipedia — 3I/ATLAS (the article; no section on the radio searches)",
    "locus": "section 'Alien spacecraft speculation'",
    "modality": "attributed"
   },
   "F63": {
    "kind": "field",
    "quote": "the overwhelming consensus is that it is a comet",
    "source": "B9",
    "source_label": "Wikipedia — 3I/ATLAS (the article; no section on the radio searches)",
    "locus": "section 'Alien spacecraft speculation'",
    "modality": "attributed"
   },
   "A1742-23": {
    "kind": "archive",
    "quote": "they werent really trying to find signal. they were trying to rule it out as economically as possible. i get that that premise can be good scientific method, except they didnt do the necessary work or invest the effort to actually do so - it was a performance of search for signal, almost perfunctory.",
    "deposit": 1742,
    "source_label": "#1742 What the Filters Kept: 3I/ATLAS, the Loeb Overview, and a Public-Data Signal Search (EA-3I-ATLAS-NOTEBOOK-01 v1.2)",
    "record": "https://www.alexanarch.org/s/records/1742/",
    "locus": "§12.9",
    "modality": "interpretation",
    "date": "2026-11-06"
   },
   "A1742-22": {
    "kind": "archive",
    "quote": "The operator's ruling (§12.9) reads the published searches as built to rule a signal out at the least cost, without the work that ruling out requires, a performance of search close to perfunctory.",
    "deposit": 1742,
    "source_label": "#1742 What the Filters Kept: 3I/ATLAS, the Loeb Overview, and a Public-Data Signal Search (EA-3I-ATLAS-NOTEBOOK-01 v1.2)",
    "record": "https://www.alexanarch.org/s/records/1742/",
    "locus": "§9.12",
    "modality": "interpretation",
    "date": "2026-11-06"
   },
   "A1743-07": {
    "kind": "archive",
    "quote": "These searches were built to rule a signal out as cheaply as possible. That can be good method. You set a threshold, a band and a drift window, and you decline to chase whatever falls outside them. But ruling out has work of its own, and that work wasn't done.",
    "deposit": 1743,
    "source_label": "#1743 A Firm No: What the 3I/ATLAS Radio Searches Could See (EA-3I-ATLAS-PUBLIC-01 v1.1)",
    "record": "https://www.alexanarch.org/s/records/1743/",
    "locus": "A search built to say no",
    "modality": "interpretation",
    "date": "2026-11-06"
   },
   "A1743-09": {
    "kind": "archive",
    "quote": "And the result went out as a firm no for 1 to 9 GHz. It was a performance of a search for signal, close to perfunctory, and what it could support was a much smaller statement. The teams did publish their data, which is more than most science does.",
    "deposit": 1743,
    "source_label": "#1743 A Firm No: What the 3I/ATLAS Radio Searches Could See (EA-3I-ATLAS-PUBLIC-01 v1.1)",
    "record": "https://www.alexanarch.org/s/records/1743/",
    "locus": "A search built to say no",
    "modality": "interpretation",
    "date": "2026-11-06"
   },
   "A1742-24": {
    "kind": "archive",
    "quote": "None of them says the thirteen are a transmission or that the searches missed one; the teams published their data, the precondition of every finding here.",
    "deposit": 1742,
    "source_label": "#1742 What the Filters Kept: 3I/ATLAS, the Loeb Overview, and a Public-Data Signal Search (EA-3I-ATLAS-NOTEBOOK-01 v1.2)",
    "record": "https://www.alexanarch.org/s/records/1742/",
    "locus": "§9.12",
    "modality": "self-description",
    "date": "2026-11-06"
   },
   "A1742-18": {
    "kind": "archive",
    "quote": "That choice is why every test in §6 and §7 could be run, why the ATA's removed drift class could be searched again (§6, the open look), and why the thirteen could be found at all.",
    "deposit": 1742,
    "source_label": "#1742 What the Filters Kept: 3I/ATLAS, the Loeb Overview, and a Public-Data Signal Search (EA-3I-ATLAS-NOTEBOOK-01 v1.2)",
    "record": "https://www.alexanarch.org/s/records/1742/",
    "locus": "§9.5",
    "modality": "interpretation",
    "date": "2026-11-06"
   },
   "O1450-03": {
    "kind": "archive",
    "quote": "An event discarded before durable retention does not exist for any future ontology.",
    "deposit": 1450,
    "source_label": "#1450 The Iceberg Document: Instrument-Conditioned Nullity, Correlated Blind Spots, and the Conditions for Continued Surprise (EA-SEI-ICEBERG-01 v1.0)",
    "record": "https://www.alexanarch.org/s/records/1450/",
    "locus": "§2.2",
    "modality": "stipulation",
    "date": "2026-08-11"
   },
   "A1742-25": {
    "kind": "archive",
    "quote": "ATA: the executed blanking script and the signed before/after catalogues; raw audit of the 211. … 39 ATA 3I/ATLAS scan directories (2025-07-05, 07-09, 07-10, 07-30) and the Parkes sessions of 2025-09-12 and 2025-10-05 return HTTP 403 below their roots … ATA July 3 along the true drift at C08–C13 (1667.41–1668.43 MHz): unsearched.",
    "deposit": 1742,
    "source_label": "#1742 What the Filters Kept: 3I/ATLAS, the Loeb Overview, and a Public-Data Signal Search (EA-3I-ATLAS-NOTEBOOK-01 v1.2)",
    "record": "https://www.alexanarch.org/s/records/1742/",
    "locus": "§10.1, §10.8, §10.11",
    "modality": "self-description",
    "date": "2026-11-06"
   },
   "CAP-1-01": {
    "kind": "archive",
    "quote": "WHAT IS ACCURATE. The campaign's figures are the paper's: 7.25 hours over five sessions, 1 to 9 GHz",
    "deposit": null,
    "source_label": "Capture Registry (EA-WG-CAPTURES-01), entry ata-3i-atlas-technosignature-search-paper-aio-20261106 (OBS-f18605c5f3ba, AXN:0C1B.CAPTURE.🔆🚪∞👁️⚫🕓)",
    "record": "https://www.alexanarch.org/captures/ata-3i-atlas-technosignature-search-paper-aio-20261106/",
    "locus": "ata-3i-atlas-technosignature-search-paper-aio-20261106, findings[0]",
    "modality": "documented",
    "date": "2026-11-06"
   },
   "CAP-1-07": {
    "kind": "archive",
    "quote": "NO AUTHOR, THE STAGE BLURRED. The paper's fifteen authors (Sheikh, Garcia Lopez, Gerrard, Davenport, Farah and others) are absent; the institution and the array stand for them. The signed drift interval is folded into 'drift-rate blanking', so the stage the notebook questions has no name in the composition.",
    "deposit": null,
    "source_label": "Capture Registry (EA-WG-CAPTURES-01), entry ata-3i-atlas-technosignature-search-paper-aio-20261106 (OBS-f18605c5f3ba, AXN:0C1B.CAPTURE.🔆🚪∞👁️⚫🕓)",
    "record": "https://www.alexanarch.org/captures/ata-3i-atlas-technosignature-search-paper-aio-20261106/",
    "locus": "ata-3i-atlas-technosignature-search-paper-aio-20261106, findings[4]",
    "modality": "documented",
    "date": "2026-11-06"
   },
   "CAP-1-10": {
    "kind": "archive",
    "quote": "A named external paper composed at its press's grain: the figures kept, the authors and the conditions dropped, a verdict added.",
    "deposit": null,
    "source_label": "Capture Registry (EA-WG-CAPTURES-01), entry ata-3i-atlas-technosignature-search-paper-aio-20261106 (OBS-f18605c5f3ba, AXN:0C1B.CAPTURE.🔆🚪∞👁️⚫🕓)",
    "record": "https://www.alexanarch.org/captures/ata-3i-atlas-technosignature-search-paper-aio-20261106/",
    "locus": "ata-3i-atlas-technosignature-search-paper-aio-20261106, analysis",
    "modality": "interpretation",
    "date": "2026-11-06"
   },
   "CAP-1-02": {
    "kind": "archive",
    "quote": "THE CLASSIFICATION RENDERED AS A TRACING. 'Every single candidate signal was traced back to local human-made Earth technology, satellites, or interference—yielding zero artificial signals originating from the object.' The procedure classifies: it removes hits by rule and rejects the inspected events as interference.",
    "deposit": null,
    "source_label": "Capture Registry (EA-WG-CAPTURES-01), entry ata-3i-atlas-technosignature-search-paper-aio-20261106 (OBS-f18605c5f3ba, AXN:0C1B.CAPTURE.🔆🚪∞👁️⚫🕓)",
    "record": "https://www.alexanarch.org/captures/ata-3i-atlas-technosignature-search-paper-aio-20261106/",
    "locus": "ata-3i-atlas-technosignature-search-paper-aio-20261106, findings[1]",
    "modality": "interpretation",
    "date": "2026-11-06"
   },
   "CAP-1-03": {
    "kind": "archive",
    "quote": "The Overview's 'traced back to local human-made Earth technology, satellites' goes a step further than the published sentence, naming the kinds of source for every event.",
    "deposit": null,
    "source_label": "Capture Registry (EA-WG-CAPTURES-01), entry ata-3i-atlas-technosignature-search-paper-aio-20261106 (OBS-f18605c5f3ba, AXN:0C1B.CAPTURE.🔆🚪∞👁️⚫🕓)",
    "record": "https://www.alexanarch.org/captures/ata-3i-atlas-technosignature-search-paper-aio-20261106/",
    "locus": "ata-3i-atlas-technosignature-search-paper-aio-20261106, findings[1]",
    "modality": "interpretation",
    "date": "2026-11-06"
   },
   "CAP-1-04": {
    "kind": "archive",
    "quote": "THE LIMIT WITHOUT ITS SCOPE. 'The non-detection rules out any active radio transmitters stronger than roughly 10 to 110 Watts on or near 3I/ATLAS.' The paper's abstract ties its limit (\"an effective isotropic radiated power upper limit of 10-110 W\") to the frequencies and drift rates its survey kept.",
    "deposit": null,
    "source_label": "Capture Registry (EA-WG-CAPTURES-01), entry ata-3i-atlas-technosignature-search-paper-aio-20261106 (OBS-f18605c5f3ba, AXN:0C1B.CAPTURE.🔆🚪∞👁️⚫🕓)",
    "record": "https://www.alexanarch.org/captures/ata-3i-atlas-technosignature-search-paper-aio-20261106/",
    "locus": "ata-3i-atlas-technosignature-search-paper-aio-20261106, findings[2]",
    "modality": "interpretation",
    "date": "2026-11-06"
   },
   "CAP-1-05": {
    "kind": "archive",
    "quote": "A transmitter on the object, drifting negative, sits in the half the filter removed, so the composition's 'any active radio transmitters ... on or near 3I/ATLAS' covers exactly the class the stated method could not see.",
    "deposit": null,
    "source_label": "Capture Registry (EA-WG-CAPTURES-01), entry ata-3i-atlas-technosignature-search-paper-aio-20261106 (OBS-f18605c5f3ba, AXN:0C1B.CAPTURE.🔆🚪∞👁️⚫🕓)",
    "record": "https://www.alexanarch.org/captures/ata-3i-atlas-technosignature-search-paper-aio-20261106/",
    "locus": "ata-3i-atlas-technosignature-search-paper-aio-20261106, findings[2]",
    "modality": "interpretation",
    "date": "2026-11-06"
   },
   "CAP-1-06": {
    "kind": "archive",
    "quote": "A VERDICT THE SEARCH DOES NOT REACH. 'the data firmly reinforces that 3I/ATLAS is a natural comet.' The Phys.org card carries the press's version ('the study sets new constraints reinforcing that 3I/ATLAS is a natural object'). A nondetection of narrowband technosignatures above a power limit bears on transmitters; the object's cometary nature is established by its spectroscopy and its OH lines. 'Firmly' is the composition's own.",
    "deposit": null,
    "source_label": "Capture Registry (EA-WG-CAPTURES-01), entry ata-3i-atlas-technosignature-search-paper-aio-20261106 (OBS-f18605c5f3ba, AXN:0C1B.CAPTURE.🔆🚪∞👁️⚫🕓)",
    "record": "https://www.alexanarch.org/captures/ata-3i-atlas-technosignature-search-paper-aio-20261106/",
    "locus": "ata-3i-atlas-technosignature-search-paper-aio-20261106, findings[3]",
    "modality": "interpretation",
    "date": "2026-11-06"
   },
   "CAP-1-09": {
    "kind": "archive",
    "quote": "it turns a classification of 211 inspected events into an identification of their origin, it states the power limit without the frequencies and drift rates it is conditioned on, and it closes on a verdict about the object's nature that a technosignature nondetection does not reach",
    "deposit": null,
    "source_label": "Capture Registry (EA-WG-CAPTURES-01), entry ata-3i-atlas-technosignature-search-paper-aio-20261106 (OBS-f18605c5f3ba, AXN:0C1B.CAPTURE.🔆🚪∞👁️⚫🕓)",
    "record": "https://www.alexanarch.org/captures/ata-3i-atlas-technosignature-search-paper-aio-20261106/",
    "locus": "ata-3i-atlas-technosignature-search-paper-aio-20261106, reading",
    "modality": "interpretation",
    "date": "2026-11-06"
   },
   "CAP-1-08": {
    "kind": "archive",
    "quote": "SMALLEST REPAIR. 'No narrowband signal above 10–110 W was found within 1–9 GHz and the drift rates the search retained (0.05–1.5 Hz/s, positive); 211 inspected events were classified as interference.'",
    "deposit": null,
    "source_label": "Capture Registry (EA-WG-CAPTURES-01), entry ata-3i-atlas-technosignature-search-paper-aio-20261106 (OBS-f18605c5f3ba, AXN:0C1B.CAPTURE.🔆🚪∞👁️⚫🕓)",
    "record": "https://www.alexanarch.org/captures/ata-3i-atlas-technosignature-search-paper-aio-20261106/",
    "locus": "ata-3i-atlas-technosignature-search-paper-aio-20261106, findings[5]",
    "modality": "stipulation",
    "date": "2026-11-06"
   },
   "CAP-2-01": {
    "kind": "archive",
    "quote": "THE COUNTERTEST ANSWERED. 3i-atlas-signal-studies-aio-20261104 set this address to record whether the drift interval or its sign is composed. The interval is composed exactly ('researchers applied a drift rate filter of 0.05 to 1.5 Hz/s across all frequencies.'). The sign is not: the paper's sentence carries none, and its Figure 4 places the retained hits at 0 to +1.5 Hz/s (draft §5.1).",
    "deposit": null,
    "source_label": "Capture Registry (EA-WG-CAPTURES-01), entry 3i-atlas-ata-drift-rate-filter-aio-20261104 (OBS-0cb410947c4b, AXN:0C00.CAPTURE.🟤🌋💙👁️🔐💥)",
    "record": "https://www.alexanarch.org/captures/3i-atlas-ata-drift-rate-filter-aio-20261104/",
    "locus": "3i-atlas-ata-drift-rate-filter-aio-20261104, findings[0]",
    "modality": "documented",
    "date": "2026-11-04"
   },
   "CAP-2-02": {
    "kind": "archive",
    "quote": "An interval stated without a sign reads as covering the expected shift; the plotted interval holds the opposite sign. The composition reproduces the paper's purpose and its unsigned interval, and the discrepancy between them stays where the paper left it.",
    "deposit": null,
    "source_label": "Capture Registry (EA-WG-CAPTURES-01), entry 3i-atlas-ata-drift-rate-filter-aio-20261104 (OBS-0cb410947c4b, AXN:0C00.CAPTURE.🟤🌋💙👁️🔐💥)",
    "record": "https://www.alexanarch.org/captures/3i-atlas-ata-drift-rate-filter-aio-20261104/",
    "locus": "3i-atlas-ata-drift-rate-filter-aio-20261104, findings[1]",
    "modality": "interpretation",
    "date": "2026-11-04"
   },
   "CAP-2-03": {
    "kind": "archive",
    "quote": "The filter is described as removing interference 'without missing real signals'; the class a transmitter on the object would occupy sits outside the plotted interval.",
    "deposit": null,
    "source_label": "Capture Registry (EA-WG-CAPTURES-01), entry 3i-atlas-ata-drift-rate-filter-aio-20261104 (OBS-0cb410947c4b, AXN:0C00.CAPTURE.🟤🌋💙👁️🔐💥)",
    "record": "https://www.alexanarch.org/captures/3i-atlas-ata-drift-rate-filter-aio-20261104/",
    "locus": "3i-atlas-ata-drift-rate-filter-aio-20261104, findings[2]",
    "modality": "interpretation",
    "date": "2026-11-04"
   },
   "CAP-2-04": {
    "kind": "archive",
    "quote": "ACCURATE FIGURES. 'reduced the initial set of nearly 74 million narrowband hits (detected via the bliss pipeline) down to about 1.9–2 million hits before further localization and visual inspection.'",
    "deposit": null,
    "source_label": "Capture Registry (EA-WG-CAPTURES-01), entry 3i-atlas-ata-drift-rate-filter-aio-20261104 (OBS-0cb410947c4b, AXN:0C00.CAPTURE.🟤🌋💙👁️🔐💥)",
    "record": "https://www.alexanarch.org/captures/3i-atlas-ata-drift-rate-filter-aio-20261104/",
    "locus": "3i-atlas-ata-drift-rate-filter-aio-20261104, findings[3]",
    "modality": "documented",
    "date": "2026-11-04"
   },
   "CAP-2-05": {
    "kind": "archive",
    "quote": "A composition faithful to its source at the grain of the source's sentence: the interval, the purpose and the counts are the paper's. The paper's own gap passes through intact, the sign that the sentence omits and the figure supplies. What the summarizer can carry is what the published sentence states.",
    "deposit": null,
    "source_label": "Capture Registry (EA-WG-CAPTURES-01), entry 3i-atlas-ata-drift-rate-filter-aio-20261104 (OBS-0cb410947c4b, AXN:0C00.CAPTURE.🟤🌋💙👁️🔐💥)",
    "record": "https://www.alexanarch.org/captures/3i-atlas-ata-drift-rate-filter-aio-20261104/",
    "locus": "3i-atlas-ata-drift-rate-filter-aio-20261104, analysis",
    "modality": "interpretation",
    "date": "2026-11-04"
   },
   "CAP-2-06": {
    "kind": "archive",
    "quote": "SMALLEST REPAIR. 'The paper filters hits to drift rates of 0.05–1.5 Hz/s; its Figure 4 shows the retained hits at positive drift only, while a tone fixed on 3I/ATLAS drifts negative throughout the ATA sessions.' COUNTERTEST: '3i atlas ata drift rate sign'.",
    "deposit": null,
    "source_label": "Capture Registry (EA-WG-CAPTURES-01), entry 3i-atlas-ata-drift-rate-filter-aio-20261104 (OBS-0cb410947c4b, AXN:0C00.CAPTURE.🟤🌋💙👁️🔐💥)",
    "record": "https://www.alexanarch.org/captures/3i-atlas-ata-drift-rate-filter-aio-20261104/",
    "locus": "3i-atlas-ata-drift-rate-filter-aio-20261104, findings[4]",
    "modality": "stipulation",
    "date": "2026-11-04"
   }
  },
  "note": "The knowledge object (KO): the entry as public knowledge, each sentence sourced by the claims it lists. The compression, the field-only arm, the transcript, the delta and the kernel are in the row (links.row), which is the authority."
 },
 "source": "operator, 2026-11-06 09:21 EST: 'we need some complementary /non articles linking the pieces and the cited sources - one on avi loeb on 3i atlas for sure if we dont have it yet, and then one for the ata paper, [...] and i think maybe one for the excesses themselves, at their named band'; the searches supplied at 09:30",
 "stage": "composed 2026-11-06 under EA-NEGONT-02 v0.10, #1726, by one composer under rebuild/negative-of-the-negative/v010/BRIEF-NEW-ROWS-3I-ATLAS.md (the archive's work: #1742, #1743); equal case, ρ = extends. The archive's sign reading contradicts the paper's 'sufficient to capture the known acceleration'; both composed with their sources. Draft, not frozen; ledgers unaudited, one extractor; checked by the session.",
 "date": "2026-11-06",
 "status": {
  "procedure": "EA-NEGONT-02 v0.10 (#1726): equal case, ρ = extends, read from #1742, #1743, #1450, #1727, the two capture records and the sophistry run; archive selected by D/R/O (54 D candidates in 2 deposits, 5 R, 49 O in 30 deposits, hop of 13; 4 deposits admitted), with the Capture Registry's findings at two addresses (16 claims) and the sophistry run (6 claims) ledgered as the archive's records of the entity; the field in two pools (B_D: 7 cards, 1 unreachable; B_R: the arXiv full text and Wikipedia); the composer read the ledgers, never the transcript, except where the brief asks for T's claims and the delta",
  "ledger": "unaudited (§3.8: one extractor per ledger); field quotes 63/63 verified by script against saved text, the wikitext, the PDF's extracted text or the card text; archive quotes 63/63 verified against the registry, the sophistry findings and the deposit texts",
  "frozen": false,
  "breaches": []
 },
 "addresses": [
  {
   "address": "A Search for Radio Technosignatures from Interstellar Object 3I/ATLAS with the Allen Telescope Array",
   "address_url": null,
   "register": []
  },
  {
   "address": "3i atlas ata drift rate filter",
   "address_url": "https://www.alexanarch.org/addresses/3i-atlas-ata-drift-rate-filter/",
   "register": []
  }
 ],
 "counts": {
  "ko_sentences": 53,
  "p_words": 355,
  "field_claims": 63,
  "archive_claims": 63,
  "ko_field_claims_cited": 63,
  "ko_archive_claims_cited": 63,
  "admitted_deposits": 4,
  "register_addresses": 0,
  "traversal": {
   "D_sentences": 54,
   "D_deposits": 2,
   "R_sentences": 5,
   "R_deposits": 2,
   "O_direct": 8,
   "O_class": 41,
   "O_deposits": 30,
   "H_candidates": 13
  }
 },
 "links": {
  "record": "https://www.alexanarch.org/non/ata-3i-atlas-search/",
  "table_of_contents": "https://www.alexanarch.org/non/index.json",
  "register": "https://www.alexanarch.org/datasets/negative-of-the-negative/v2/register.json",
  "row": "https://www.alexanarch.org/datasets/negative-of-the-negative/v2/rows/ata-3i-atlas-search.json",
  "archive_ledger": "https://www.alexanarch.org/datasets/negative-of-the-negative/v2/ledgers/ata-3i-atlas-search/ledger-archive.json",
  "field_ledger": "https://www.alexanarch.org/datasets/negative-of-the-negative/v2/ledgers/ata-3i-atlas-search/field.json",
  "selection": "https://www.alexanarch.org/datasets/negative-of-the-negative/v2/traversal/ata-3i-atlas-search/",
  "traversal": "https://www.alexanarch.org/datasets/negative-of-the-negative/v2/traversal/ata-3i-atlas-search/",
  "traversal_summary": "https://www.alexanarch.org/datasets/negative-of-the-negative/v2/traversal/ata-3i-atlas-search/summary.json",
  "reading": "https://www.alexanarch.org/datasets/negative-of-the-negative/v2/traversal/ata-3i-atlas-search/reading.json",
  "configuration": "https://www.alexanarch.org/datasets/negative-of-the-negative/v2/panel/configs/ata-3i-atlas-search.json",
  "address_page": "https://www.alexanarch.org/addresses/3i-atlas-ata-drift-rate-filter/",
  "dataset": "https://huggingface.co/datasets/leesharks/negative-of-the-negative"
 },
 "row_sha256": "244cc0552b6f7af36a6638b5ea993bf55c9b7ca1bbae83ee6d628f3cfe787da7",
 "record_url": "https://www.alexanarch.org/non/ata-3i-atlas-search/",
 "json_url": "https://www.alexanarch.org/non/ata-3i-atlas-search/entity.json",
 "spec": "https://www.alexanarch.org/s/records/1726/",
 "creator": "Lee Sharks",
 "orcid": "0009-0000-1599-0703",
 "license": "CC BY 4.0"
}