West Side Story: Act II: Cool

Recording by Leonard Bernstein.

Recording identifiers

ISRC
USSM16001110
CopyrightID (CopyrightChains transaction hash)
0x0ee2b3dab09dce88a7efb0a3c624122a816ecfbae8913abfe6c3843375764452
Copyright registration time
2026-06-06T15:25:42+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-06-13T12:53:06Z
Bitcoin block
953515
Canonical record hash
sha256:027b0b1dd59edf221a1a46eb4b371ff1cade0ca6b5cb03cbade9b71bc7f6d5cd

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.