GPAI Ledger The public record of EU AI Act training-data summaries

GPAI Ledger › GPT-5.5 (OpenAI) › Capture 29 Aug 2026

GPT-5.5 — capture 20260829T190320Z

ProviderOpenAI
TargetAIAL evaluation (earlier state) — https://raw.githubusercontent.com/AIAccountabilityLab/gpai-training-transparency/948877cb12c420f0cc45ba011ba255f0570f985e/evals/gpt-5-5.yaml
Fetched (UTC)2026-08-29T19:03:20Z
Upstream commit6 Aug 2026 — 948877cb12c4 (when this state began to stand in the upstream repository; this archive fetched it at the time above, not then)
Stored file8,174 bytes — not served (third-party research, archived but not republished here); the hash and timestamp proof below still establish what was published when
SHA-2562937d2f1d42fb021342502d28d909875fdcfe15dba05754e8fae62d6f450740c
OpenTimestamps proof2937d2f1d42fb021342502d28d909875fdcfe15dba05754e8fae62d6f450740c.yaml.20260829T190320Z.ots (calendar-attested; anchored in bitcoin over time; identical bytes were first archived on 29 Aug 2026 — that version carries the earliest attestation)
Waybacknot saved
Prior capture of this target51a5ca5e54945f2584920242a995c58841c769a93bbedd4154bbc8edce6f20c4 (captured 2026-08-29T18:59:09Z)

Verify: obtain the file from the target address above, then sha256sum it — it must equal the hash above; the .ots proof dates that hash.

Structured facts

This is another organisation's own research, and this project does not redistribute it: the file itself is not served here; these facts still pin its identity and let any copy be authenticated against this record.

Document size8,174 bytes
Canonical text SHA-2567094fcdf59be7f077fc7d48e0b54c7d3f03dfe7444cd372ab5c1fa9b3d462223
Extracted text length1,055 words