GPAI Ledger The public record of EU AI Act training-data summaries

GPAI Ledger › Claude Sonnet 4.5 (Anthropic) › Capture 31 Aug 2026

Claude Sonnet 4.5 — capture 20260831T103210Z

ProviderAnthropic
TargetAIAL evaluation page — https://raw.githubusercontent.com/AIAccountabilityLab/gpai-training-transparency/e358c0273a50a424019d5b1f4d36878280e445c3/public/evals/claude-sonnet-4-5/index.html
Fetched (UTC)2026-08-31T10:32:10Z
Upstream commit3 Aug 2026 — e358c0273a50 (when this state began to stand in the upstream repository; this archive fetched it at the time above, not then)
Stored file11,414 bytes — not served (third-party research, archived but not republished here); the hash and timestamp proof below still establish what was published when
SHA-256e9215440383c8aa974562a2e8df99cef3a2f7b9baa6a11d6a8194e2b3de627cd
OpenTimestamps proofe9215440383c8aa974562a2e8df99cef3a2f7b9baa6a11d6a8194e2b3de627cd.html.20260831T103210Z.ots (calendar-attested; anchored in bitcoin over time)
Waybacknot 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 size11,414 bytes
Canonical text SHA-2561714c85b359c415eae901040e30703e6e8537f45c7460a5125b95a709fb88a9c
Extracted text length209 words