Triple Quartet: Second Movement

Recording by Steve Reich.

Recording identifiers

ISRC
USNO10154602
CopyrightID (CopyrightChains transaction hash)
0x71048d627801c232c0c3466fc29b58c8a8ae88a4153d21bc46d6b6f3cdd174c2
Copyright registration time
2026-07-07T08:29:07+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-08T03:20:19Z
Bitcoin block
957118
Canonical record hash
sha256:bccdd36d6443ace3299ee462363a355b52f11ad918ba1a7562f66a59847b9281

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.