West Side Story: Act II: End Credits

Recording by Leonard Bernstein.

Recording identifiers

ISRC
USSM16001113
CopyrightID (CopyrightChains transaction hash)
0x61f9b3051e049da0ec2927190260222018804fe2545b286068b0b99b51e39d87
Copyright registration time
2026-06-08T11:38:39+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-06-13T13:32:09Z
Bitcoin block
953520
Canonical record hash
sha256:fc6c3ecaf58a8edce34e389dd37e935b534d2373a4f3e11ebe70e0548aa0d655

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.