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

GPAI Ledger › Claude Sonnet 4.5 (Anthropic) › Capture 16 Sep 2026

Claude Sonnet 4.5 — capture 20260916T072750Z

ProviderAnthropic
TargetAIAL evaluation page — https://aial.ie/research/gpai-training-transparency/evals/anthropic-claude-sonnet-4-5/
Fetched (UTC)2026-09-16T07:27:50Z
Stored file11,795 bytes — not served (third-party research, archived but not republished here); the hash and timestamp proof below still establish what was published when
SHA-2566c87a8eb2facb4fee48ca9f75b0c73f0549b782f0435da386d0db13e25e69e48
OpenTimestamps proof6c87a8eb2facb4fee48ca9f75b0c73f0549b782f0435da386d0db13e25e69e48.html.20260916T072750Z.ots (calendar-attested; anchored in bitcoin over time; identical bytes were first archived on 31 Aug 2026 — that version carries the earliest attestation)
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 size11,795 bytes
Canonical text SHA-2561714c85b359c415eae901040e30703e6e8537f45c7460a5125b95a709fb88a9c
Extracted text length209 words