Symphony No. 5: IV. Machine

Recording by William Bolcom.

Recording identifiers

ISRC
FINDE9700011
CopyrightID (CopyrightChains transaction hash)
0x3516f8dfcedc530fe435ea171ac864be0bb52a382f15b26f30d9b1d5946e030e

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-31T20:42:35Z
Bitcoin block
960463
Canonical record hash
sha256:967022d241c417cc36d13f689c8d564bed45fab9518999111cf9a6bddde1c608

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.