Music for Ensemble and Orchestra: III. Quarters
Recording by Steve Reich.
Recording identifiers
- ISRC
- USNO12200318
- CopyrightID (CopyrightChains transaction hash)
- 0xb1f00b73c239f92f294d8943d8261b6496e148ee0f6881e13abf8306054baa48
- Copyright registration time
- 2026-06-26T21:46:20+00:00
OpenTimestamps proof evidence
- Bitcoin-attested timestamp
- 2026-07-02T03:55:08Z
- Bitcoin block
- 956304
- Canonical record hash
- sha256:4bd380407c9342bf60b09a2ba67366bf65d6fb319757b0a2c76d333f6174a315
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.