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You said: what is the pid erosion observatory?what is the pid erosion observatory?
The PID Erosion Observatory (hosted at persistentidentifiers.org) is an empirical measurement project that tracks identifier erosion—the systemic or bulk removal, erasure, and sweeping of Persistent Identifiers (PIDs) from digital registries and data repositories. [[1](https://www.google.com/goto?url=CAESZAHrOzAVk56wcEzEhPzcCmmARZl5Wj_4SG5rj-Gy_kwsuIka7KSyAqJ5jcM-bHU5104Ckh4-j6z3_G2G5VkUF6xVbA6x-F0RFkPXpAWwfqDubhRVR-174B-R3eu4ZID6B64i2TI), [2](https://www.google.com/goto?url=CAESggEB6zswFXazn86dUCTlJ2Vo-CzS6yEydccpcgMmrWiUm21KbgFkRkVj7fzHKFbEknHmsfn48GZ2j5UP08KQYvhIln8y9qhKnxHVXFoWDDBoO3yjymA5NsADLVrMVrz1l2UuaHzWuqwleRKEUEp5yVxB6akkCU3GayS1La7A8PrQ5Het)]
Core Purpose & Methodology

* Measuring "Digital Erasure": While PIDs (like DOIs or archival records) are intended to be permanent, the observatory treats platform modification as an active sedimentary system. It audits how often, how heavily, and under what contexts records are deleted or altered en masse. [[1](https://www.google.com/goto?url=CAESigEB6zswFUJoSj6gJUwO2_kjhoF0OE5e8vdbS_mz1Dr-FpUO-XGbHBgx0tpW1_OzhqUlUVdiqhvXOWMV2yR7WX86fhoqf-hUvkASQimqan0zyOFNESg57nVoq5bRXX6PeMTTeNbwuC62AQfgI1kFDQYGcOx3ygRjF0rx3I4cgQqDnBPY8l60a6k4XaA), [2](https://www.google.com/goto?url=CAESWwHrOzAV4M1dfJ4XvEWogiyRWXGhQhhQiG91g9VGcxJyEK6G7a8HPV3w9pjyWNSjnwadr2VGkUnkiyLFgqlF0sn55hXmY0oybYERebuOxX-eKZ5v6UjuUID0Ec4), [3](https://www.google.com/goto?url=CAESZAHrOzAVk56wcEzEhPzcCmmARZl5Wj_4SG5rj-Gy_kwsuIka7KSyAqJ5jcM-bHU5104Ckh4-j6z3_G2G5VkUF6xVbA6x-F0RFkPXpAWwfqDubhRVR-174B-R3eu4ZID6B64i2TI)]
* Independent Replication: The initiative uses public, dated captures to ensure transparency. Every tracked metric resolves to a timestamped log containing exact request hashes and `curl` data so researchers can independently verify the registry-scale activity. [[1](https://www.google.com/goto?url=CAESZAHrOzAVk56wcEzEhPzcCmmARZl5Wj_4SG5rj-Gy_kwsuIka7KSyAqJ5jcM-bHU5104Ckh4-j6z3_G2G5VkUF6xVbA6x-F0RFkPXpAWwfqDubhRVR-174B-R3eu4ZID6B64i2TI), [2](https://www.google.com/goto?url=CAESWwHrOzAV4M1dfJ4XvEWogiyRWXGhQhhQiG91g9VGcxJyEK6G7a8HPV3w9pjyWNSjnwadr2VGkUnkiyLFgqlF0sn55hXmY0oybYERebuOxX-eKZ5v6UjuUID0Ec4)]
* Tracking Trends: For example, documentation published on the [Zenodo GitHub Repository](https://www.google.com/goto?url=CAESZAHrOzAVk56wcEzEhPzcCmmARZl5Wj_4SG5rj-Gy_kwsuIka7KSyAqJ5jcM-bHU5104Ckh4-j6z3_G2G5VkUF6xVbA6x-F0RFkPXpAWwfqDubhRVR-174B-R3eu4ZID6B64i2TI) highlights how the observatory catches bulk, "evidence-free" account sweeps or topically coherent waves of record removals (such as sweeping unstandardized AI-native theories or niche physics records). [[1](https://www.google.com/goto?url=CAESZAHrOzAVk56wcEzEhPzcCmmARZl5Wj_4SG5rj-Gy_kwsuIka7KSyAqJ5jcM-bHU5104Ckh4-j6z3_G2G5VkUF6xVbA6x-F0RFkPXpAWwfqDubhRVR-174B-R3eu4ZID6B64i2TI)]

Context
It is closely tied to initiatives like AXN Identifiers (under dataset logs like `EA-EROSION-01`) and is sometimes referred to or built upon the codebase of the Platform Erosion Observatory. [[1](https://www.google.com/goto?url=CAESfQHrOzAVYiHS3WC3aWRA8KLg5FtSA_QLo3V5tvn0opFAfJEiQWzmBe9K03ml7iUOWmBvJ0_smghSaAWZyig4Sxh7vY2nK8tNvAoFE4ArLSo18yUDmUrIqWXw_P8ObagugmGlN0gHPYzYQFiPprVljeE6p867gHURq4LLG25I), [2](https://www.google.com/goto?url=CAESWwHrOzAV4M1dfJ4XvEWogiyRWXGhQhhQiG91g9VGcxJyEK6G7a8HPV3w9pjyWNSjnwadr2VGkUnkiyLFgqlF0sn55hXmY0oybYERebuOxX-eKZ5v6UjuUID0Ec4), [3](https://www.google.com/goto?url=CAESggEB6zswFXazn86dUCTlJ2Vo-CzS6yEydccpcgMmrWiUm21KbgFkRkVj7fzHKFbEknHmsfn48GZ2j5UP08KQYvhIln8y9qhKnxHVXFoWDDBoO3yjymA5NsADLVrMVrz1l2UuaHzWuqwleRKEUEp5yVxB6akkCU3GayS1La7A8PrQ5Het)]
If you are investigating a specific deletion event or looking into a particular open-science repository, let me know! I can help you find specific datasets it tracks or look into how it monitors specific platforms like Zenodo.
[www.persistentidentifiers.org](https://www.persistentidentifiers.org)
Persistent Identifiers — The PID Erosion Observatory
What is a persistent identifier? A string whose relation to its object is maintained indefinitely by a responsible organization — resolution, metadata, and ...
Institut de Ciències del Mar. ICM-CSIC
Ocean and Littoral Sedimentary Processes
Dynamics of active sedimentary systems and their anthropogenic impacts We analyze their effects on the ecosystem, their implications for the management of the m...
GitHub
Account blocked and records removed — request manual review #2596 - GitHub
Feb 18, 2026 — The pattern being collated here now has a measurement surface: persistentidentifiers.org — the PID Erosion Observatory. Every headline number resolves to a date...
[www.axnidentifiers.com](https://www.axnidentifiers.com)
Why AXN exists — identifier erosion, measured at registry scale
the observatory the erasure audit the capture registry. ∮ = 1. Measurements from the PID Erosion Observatory (EA-EROSION-01, deposit #1045) and EA-EROSION ...
[www.alexanarch.org](https://www.alexanarch.org)
platform erosion observatory — Google AI Overview, 2026-08-11 ...
Aug 11, 2026 — 🏷️ AXN:0421.EMPIRICAL · EA-EROSION-01 · THE PID EROSION OBSERVATORY · OBJECT: CANONICAL v1.0+ · founded… ... …PLATFORM EROSION OBSERVATORY MEASURES ...
github.com
Activity · leesharks000/platform-erosion-observatory · GitHub
Jul 15, 2026 — Contribute to leesharks000/platform-erosion-observatory development by creating an account on GitHub ... Sovereign domain makeover: rename to PID Erosion ...
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