2x5: I. Fast

Recording by Steve Reich.

Recording identifiers

ISRC
SE24X1200107
CopyrightID (CopyrightChains transaction hash)
0xce297c2072db0cf909d9f02c3fa57dd682c81260251f2cf794a1462dc83a0d7d

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-30T14:36:16Z
Bitcoin block
960264
Canonical record hash
sha256:898e98e6aece9246de5fbb1a6d281e766e721a7a64856a6dd787c5375099a488

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.