West Side Story: Act I: Tonight

Recording by Leonard Bernstein.

Recording identifiers

ISRC
USSM16001103
CopyrightID (CopyrightChains transaction hash)
0x092ae2d171c8a892ae7d1d68ae436018c1ce226de1a7dedc02adf600f54cb927
Copyright registration time
2026-06-05T05:06:04+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-06-13T12:47:07Z
Bitcoin block
953513
Canonical record hash
sha256:3b1b741e03862ef966cd98700fab50288b204f07bcfb0e445527977acf717ec2

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.