GPAI Ledger › Claude Mythos 5 / Claude Fable 5 (Anthropic) › Capture 31 Aug 2026
Claude Mythos 5 / Claude Fable 5 — capture 20260831T111125Z
| Provider | Anthropic |
|---|---|
| Target | AIAL evaluation page — https://raw.githubusercontent.com/AIAccountabilityLab/gpai-training-transparency/6da9b3fc0d502cd8720a20cd4e9a4f0ce6f8b451/public/evals/claude-mythos-5-fable-5/index.html |
| Fetched (UTC) | 2026-08-31T11:11:25Z |
| Upstream commit | 6 Aug 2026 — 6da9b3fc0d50 (when this state began to stand in the upstream repository; this archive fetched it at the time above, not then) |
| Stored file | 20,558 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 | 89f0e36a9ab682011224caf09ddc057b364ea5c9339bfb6d826da5ed578e6d52 |
| OpenTimestamps proof | 89f0e36a9ab682011224caf09ddc057b364ea5c9339bfb6d826da5ed578e6d52.html.20260831T111125Z.ots (calendar-attested; anchored in bitcoin over time) |
| Wayback | not saved |
| Prior capture of this target | 137716a80762d264c2d8661dd6b84b5aa611bc519a4495b6781ce3fde0e372c1 (captured 2026-08-31T11:03:55Z) |
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 | 20,558 bytes |
|---|---|
| Canonical text SHA-256 | 21e0f425ac6534ce2d3df2e8f57fe03248e4fcd9a6317521940998682b38c3c9 |
| Extracted text length | 799 words |