GPAI Ledger › Claude Mythos Preview (Anthropic) › Capture 31 Aug 2026
Claude Mythos Preview — capture 20260831T111132Z
| Provider | Anthropic |
|---|---|
| Target | AIAL evaluation page — https://raw.githubusercontent.com/AIAccountabilityLab/gpai-training-transparency/6da9b3fc0d502cd8720a20cd4e9a4f0ce6f8b451/public/evals/claude-mythos-preview/index.html |
| Fetched (UTC) | 2026-08-31T11:11:32Z |
| 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 | 20,536 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 | 63d6a8a8e9193e46f651c414dbc8187226b2d85b0fee1879d0600b2feae11c4b |
| OpenTimestamps proof | 63d6a8a8e9193e46f651c414dbc8187226b2d85b0fee1879d0600b2feae11c4b.html.20260831T111132Z.ots (calendar-attested; anchored in bitcoin over time) |
| Wayback | not saved |
| Prior capture of this target | 4f30bc00bc081d7afc4bbe1a07a11354f927ba26188cf11d67cca7ee6d43d475 (captured 2026-08-31T11:04:01Z) |
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 | 20,536 bytes |
|---|---|
| Canonical text SHA-256 | 4fd5ac0333ae147d33cd327ba954312dd55f00c84b78904abe2f91ffb0f3a182 |
| Extracted text length | 791 words |