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 20260831T111221Z

ProviderAnthropic
TargetAIAL evaluation page — https://raw.githubusercontent.com/AIAccountabilityLab/gpai-training-transparency/6da9b3fc0d502cd8720a20cd4e9a4f0ce6f8b451/public/evals/claude-sonnet-4-5/index.html
Fetched (UTC)2026-08-31T11:12:21Z
Upstream commit6 Aug 2026 — 6da9b3fc0d50 (when this state began to stand in the upstream repository; this archive fetched it at the time above, not then)
Stored file11,468 bytes — not served (third-party research, archived but not republished here); the hash and timestamp proof below still establish what was published when
SHA-256ef4d4f3619cd936c26b49afd59c543a187bd5f6039a1a41a7450958d165b431d
OpenTimestamps proofef4d4f3619cd936c26b49afd59c543a187bd5f6039a1a41a7450958d165b431d.html.20260831T111221Z.ots (calendar-attested; anchored in bitcoin over time)
Waybacknot saved
Prior capture of this targete9215440383c8aa974562a2e8df99cef3a2f7b9baa6a11d6a8194e2b3de627cd (captured 2026-08-31T10:32:10Z)

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 size11,468 bytes
Canonical text SHA-2561714c85b359c415eae901040e30703e6e8537f45c7460a5125b95a709fb88a9c
Extracted text length209 words