The Four Sections: II. Percussion

Recording by Steve Reich.

Recording identifiers

ISRC
DEE861600549
CopyrightID (CopyrightChains transaction hash)
0x3bc4de8ef3b71ef93f6a1bb02b5f966a5dda4da4a513a71a1355f9c8c7abc2e7
Copyright registration time
2026-07-30T08:11:23+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-30T08:30:10Z
Bitcoin block
960229
Canonical record hash
sha256:081de6a81c5024ae48357f4e452df51280b44fd53b5c478bf5401139d10c8024

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.