September Song
Recording by Kurt Weill.
Recording identifiers
- ISRC
- CAM460429077
- CopyrightID (CopyrightChains transaction hash)
- 0x890f5bdafa6a2a9c1b7a9d6644455c66061a61082fc347e0da7f2e4294514982
- Copyright registration time
- 2026-07-31T00:44:29+00:00
OpenTimestamps proof evidence
- Bitcoin-attested timestamp
- 2026-07-31T02:19:15Z
- Bitcoin block
- 960334
- Canonical record hash
- sha256:ca7ef9d68679da62bc99cc82ab1b25b705e4c098e98063a46af4a8a87dbf5d6a
What this proof establishes
This recording belongs to ProofProfile's historical evidence base derived from the pre-2022 AcousticBrainz and MusicBrainz corpus. ISRC is the stable recording-level bridge from that source corpus to the authoritative cc-db-prod track record.
CopyrightChains and Bitcoin OpenTimestamps make the exact committed record independently verifiable today. The cryptographic proof does not by itself establish authorship or ownership of the underlying recording.
Read the complete pre-generative-AI provenance and verification method.