{ "deposit_number": 1555, "axn": "AXN:0650.EMPIRICAL.๐Ÿ”†๐ŸŒ•๐Ÿ›ก๏ธ๐ŸŸ โœŠโ†–๏ธ", "hex": "0650", "family": "EMPIRICAL", "emoji": "๐Ÿ”†๐ŸŒ•๐Ÿ›ก๏ธ๐ŸŸ โœŠโ†–๏ธ", "hash": "ec042dc2b4dd5cc5236775e25525b9cec243d03fe213f269a62d8241ddfbd8e1", "title": "The Keyed Ensemble: Watermark as Distributional Object, the Certification Mismatch, and the Asymmetry of the Key (EA-LO-KEYED-ENSEMBLE-01 v1.0)", "creator": "Nobel Glas, Director, Lagrange Observatory! (LO!); Operator's Review appended as verified adjudication trail", "date": "2026-08-27", "description": "Lagrange Observatory! white paper on the Anthropic/SynthID-Text watermark as a distributional object. Core claim: the certified property and the consumed object do not match โ€” non-distortion is certified per sequence while training corpora are ensembles โ€” and the vendor's own source paper reports the ensemble movement (inter-response diversity falls under Self-BLEU) while every per-response quality instrument reads flat. The paper distinguishes published SynthID-Text properties from Claude's undisclosed instantiation throughout; separates the measured Self-BLEU fact from the proposed joint-entropy interpretation; types the key asymmetry as issuer control of the verification primitive, with differential collapse exposure a hypothesis contingent on practice; and specifies a four-observable measurement program requiring no key disclosure. Developed under three adversarial review rounds; the founding Operator's Review is appended as the historical adjudication trail with superseded statements flagged. Companion: EA-LO-INTERLOCKING-AUTOREGRESSION-01, which carries the shared evidentiary basis (simulation code, traces, figures).", "content_type": "Theoretical/measurement paper (white paper)", "license": "CC-BY-4.0", "substrate": "AI-assisted (substrate) โ€” composed in working dialogue with Claude (Anthropic) under operator direction (Lee Sharks); three adversarial review rounds by external substrates (ChatGPT, Kimi, Muse Spark) with dispositions on record; full production-conditions declaration in the body's Self-Location Protocol", "root_axn": "AXN:0650.EMPIRICAL", "axn_schema_version": "v2", "protocol_version": "alexanarch-deposit-protocol/v1", "axn_canonical": "ec042dc2b4dd5cc5236775e25525b9cec243d03fe213f269a62d8241ddfbd8e1", "clusters": [ "Liminal", "Celestial", "Architectural", "Signal", "Gestural", "Structural" ], "axn_reading": "Threshold -> Origin -> Foundation -> Alarm -> Touch -> Direction", "minted_at": "2026-08-27T16:52:25Z", "status": "ACTIVE", "status_authorial": "SELF_SERVE_MINTED", "full_text_path": "/data/texts/AXN-0650-text.md", "wiki_article": "The Keyed Ensemble (EA-LO-KEYED-ENSEMBLE-01) is a Lagrange Observatory! white paper by Nobel Glas on the text watermark Anthropic announced in August 2026 โ€” a version of Google DeepMind's SynthID-Text, adopted for EU AI Act transparency and applied worldwide. Its central formal object is the certification mismatch: non-distortion is certified per sequence while training corpora are ensembles, and the vendor's own source paper reports the ensemble movement โ€” inter-response diversity falls under Self-BLEU โ€” while every per-response quality instrument reads flat. The paper distinguishes throughout between properties of published SynthID-Text and properties of Claude's undisclosed instantiation; separates the measured Self-BLEU fact from its proposed joint-entropy interpretation; and types the asymmetry of the key as issuer control of the verification primitive โ€” the public can receive a verdict but cannot independently reproduce the keyed test โ€” with differential collapse exposure held as a hypothesis contingent on practice. Transmission legs rest on watermark distillation (Gu et al., ICLR 2024) and radioactivity (Sander et al., NeurIPS 2024), with erosion limits recorded; a four-observable measurement program is specified without requiring key disclosure. Developed through three adversarial review rounds; the founding Operator's Review is appended as the historical adjudication trail with superseded statements flagged. Companion: EA-LO-INTERLOCKING-AUTOREGRESSION-01 (#1556), which holds the shared evidentiary basis. Cites #199 with the term attribution corrected per ERRATUM to AXN:0341 (#1554).", "wiki_status": "AUTHORSHIP_REQUIRED", "entities": [ { "subject": "The Keyed Ensemble: Watermark as Distributional Object, the Certification Mismatch, and the Asymmetr", "predicate": "created_by", "object": "Nobel Glas, Director, Lagrange Observatory! (LO!); Operator's Review appended as verified adjudication trail", "type": "work", "evidence_status": "observed" }, { "subject": "The Keyed Ensemble: Watermark as Distributional Object, the Certification Mismatch, and the Asymmetr", "predicate": "is_type", "object": "Theoretical/measurement paper (white paper)", "type": "work", "evidence_status": "observed" }, { "subject": "The Keyed Ensemble: Watermark as Distributional Object, the Certification Mismatch, and the Asymmetr", "predicate": "belongs_to_family", "object": "EMPIRICAL", "type": "work", "evidence_status": "observed" }, { "subject": "The Keyed Ensemble: Watermark as Distributional Object, the Certification Mismatch, and the Asymmetr", "predicate": "is_part_of", "object": "Crimson Hexagonal Archive", "type": "work", "evidence_status": "observed" } ], "entity_status": "provisional", "defines_concepts": [ "certification mismatch", "keyed ensemble", "distributional signature recursion", "issuer-controlled verification primitive" ], "orcid": "0009-0000-1599-0703", "version": "v1.0", "keywords": [ "watermark", "SynthID-Text", "certification mismatch", "keyed ensemble", "distributional signature recursion", "verification primitive", "model collapse", "provenance", "Self-BLEU", "radioactivity", "watermark distillation" ], "related_identifiers_raw": "Companion: EA-LO-INTERLOCKING-AUTOREGRESSION-01 ยท Anchors: AXN:0341 (with ERRATUM to AXN:0341 of 2026-08-27) ยท AXN:0335 ยท AXN:0308 ยท AXN:02F8 ยท AXN:02B2 ยท AXN:0363 ยท AXN:0642 ยท External: 10.1038/s41586-024-08025-4, 10.1038/s41562-026-02550-0, 10.1038/s41586-024-07566-y, arXiv:2510.10987, arXiv:2603.03410, arXiv:2407.02209", "mint_source": { "kind": "github_issue", "issue_number": 1555, "repository": "leesharks000/alexanarch", "minted_by_workflow": ".github/workflows/mint-axn.yml", "minted_by_script": "scripts/mint_deposit.py", "minted_via": "self_serve_validated_pr" }, "attachments": [ { "filename": "evidentiary-basis-v1.tar.gz", "url": "https://alexanarch.org/data/attachments/ea-lo-interlocking-autoregression/evidentiary-basis-v1.tar.gz", "size": 384269, "ingested_inline": false, "ingestion_error": null } ], "body_status": { "class": "full", "lacuna": false, "recovery_status": "COMPLETE", "residual_chars": 27336, "audited_at": "2026-08-27T16:52:25Z", "audit_version": "mint-time-declaration" }, "related_deposits": [ 1556, 1554, 199, 191, 161, 127, 855 ], "lexical_attested_none": false, "references_concepts": [ "Crimson Hexagonal Archive", "EGRESS", "Equilibrium over resolution", "Lagrange Observatory! (LO!)", "Lee Sharks", "PER (Provenance Erasure Rate)", "Provenance Erasure Rate", "Semantic Economy", "The Asymmetry", "Training-Layer", "Watermarking", "mediation signature", "solution-space diversity" ], "references_concept_count": 13, "citations": [], "wikidata_candidates": [], "cha_cross_references": [], "external_metadata_path": "/data/external-metadata/AXN-0650.json", "spxi_audit": { "spxi_protocol": "v0.2", "validated_at": "2026-08-27T16:54:43.558768+00:00", "layers": { "layer_1_inscription_anchors": { "present": false, "anchors_found": [ "date" ], "anchor_count": 1, "orcid_in_body": false, "creator_in_body": false, "note": "Layer 1 present if at least 3 anchor types appear in body prose. Anchor types include ORCID, creator name, AXN string, hex identifier, sovereign_id, date, deposit number phrase, and authorial-position phrase." }, "layer_2_micro_kernels": { "present": false, "fenced_json_blocks": 0, "json_ld_context_markers": 0 }, "layer_3_content_hash": { "present": true, "canonical_hash": "f9473dc2dd5c0ac74fbee247e2e7fdee618dd34ee30f8be56b36eb61844decb9", "hash_in_body": false, "note": "Hash is always registered by mint. hash_in_body true means the author inscribed a signature section." }, "layer_4_cross_signing": { "present": false, "cross_references_count": 0, "note": "Populated by enrichment via cha_cross_references. Prospective (this deposit โ†’ prior deposits) only; retrospective cited_by updates on prior deposits." }, "layer_5_external_anchors": { "present": true, "wikidata_qid_count": 0, "external_doi_count": 0, "orcid_present": true } }, "overall_conformance": "partial" }, "_projection": { "note": "Derived file. Canonical machine record is this entry in data/registry.json; the human record is the record_url. Do not edit this file.", "record_url": "https://www.alexanarch.org/s/records/1555/", "self_url": "https://www.alexanarch.org/data/records/1555.json", "registry_url": "https://www.alexanarch.org/data/registry.json", "text_url": "https://www.alexanarch.org/data/texts/AXN-0650-text.md", "oai_pmh": "https://www.alexanarch.org/oai?verb=Identify" } }