GPAI Ledger › Claude Opus 4.5 (Anthropic) › Capture 16 Sep 2026
Claude Opus 4.5 — capture 20260916T072635Z
| Provider | Anthropic |
|---|---|
| Target | AIAL evaluation page — https://aial.ie/research/gpai-training-transparency/evals/anthropic-claude-opus-4-5/ |
| Fetched (UTC) | 2026-09-16T07:26:35Z |
| Stored file | 11,787 bytes — not served (third-party research, archived but not republished here); the hash and timestamp proof below still establish what was published when |
| SHA-256 | a2da20ce05080a66d14c9da0efbcf0f2e6ff7f09a2c9ea996e2808d1702afa2a |
| OpenTimestamps proof | a2da20ce05080a66d14c9da0efbcf0f2e6ff7f09a2c9ea996e2808d1702afa2a.html.20260916T072635Z.ots (calendar-attested; anchored in bitcoin over time; identical bytes were first archived on 31 Aug 2026 — that version carries the earliest attestation) |
| Wayback | not saved |
| Prior capture of this target | — first capture of this target |
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 size | 11,787 bytes |
|---|---|
| Canonical text SHA-256 | 46efa1519eacb1573ec7da6de8eed7636f4578254ae176499b8ac267207ec390 |
| Extracted text length | 209 words |