GPAI Ledger › Claude Mythos 5 / Claude Fable 5 (Anthropic) › Capture 31 Aug 2026
Claude Mythos 5 / Claude Fable 5 — capture 20260831T105823Z
| Provider | Anthropic |
|---|---|
| Target | AIAL evaluation page — https://raw.githubusercontent.com/AIAccountabilityLab/gpai-training-transparency/e23043c1a1254414a190531d23dca9b8b3da3415/public/evals/claude-mythos-5-fable-5/index.html |
| Fetched (UTC) | 2026-08-31T10:58:23Z |
| Upstream commit | 5 Aug 2026 — e23043c1a125 (when this state began to stand in the upstream repository; this archive fetched it at the time above, not then) |
| Stored file | 20,430 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 | d1d8311cd599b6fe908d2312f261b50bf53b22fe21c15851ca1831d0285e57d2 |
| OpenTimestamps proof | d1d8311cd599b6fe908d2312f261b50bf53b22fe21c15851ca1831d0285e57d2.html.20260831T105823Z.ots (calendar-attested; anchored in bitcoin over time) |
| Wayback | not saved |
| Prior capture of this target | 4b38b796a579fd15d77479314e8587d164b1e3b629198c9fff7355aa5d725989 (captured 2026-08-31T10:53:04Z) |
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 | 20,430 bytes |
|---|---|
| Canonical text SHA-256 | c2f30dc4a15912fb0f406c9a13da2e463a60bff297a480df4613fb16b7abfd30 |
| Extracted text length | 799 words |