GPAI Ledger › Claude Mythos Preview (Anthropic) › Capture 31 Aug 2026
Claude Mythos Preview — capture 20260831T105312Z
| Provider | Anthropic |
|---|---|
| Target | AIAL evaluation page — https://raw.githubusercontent.com/AIAccountabilityLab/gpai-training-transparency/06ddb124fa2483d962c846bc0ea88b030295607a/public/evals/claude-mythos-preview/index.html |
| Fetched (UTC) | 2026-08-31T10:53:12Z |
| Upstream commit | 5 Aug 2026 — 06ddb124fa24 (when this state began to stand in the upstream repository; this archive fetched it at the time above, not then) |
| Stored file | 20,407 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 | 81760c3eab93c529b94a031fd4432a3d41194fa79075d534e90272dfd42d9e85 |
| OpenTimestamps proof | 81760c3eab93c529b94a031fd4432a3d41194fa79075d534e90272dfd42d9e85.html.20260831T105312Z.ots (calendar-attested; anchored in bitcoin over time) |
| Wayback | not saved |
| Prior capture of this target | a98919d3327c12ca0b1eb2e2d11d6bca901652d24bda93270041940ece762dd4 (captured 2026-08-31T10:48:23Z) |
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 | 20,407 bytes |
|---|---|
| Canonical text SHA-256 | 143d5738ee7c65cb071ad243be22f55ac2865e6fca83e35226d504ba38217330 |
| Extracted text length | 791 words |