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.