West Side Story: IV. The Dance at the Gym: c. Mambo

Recording by Leonard Bernstein.

Recording identifiers

ISRC
DEF058430622
Release date of the album this recording appears on
1995-01-01
CopyrightID (CopyrightChains transaction hash)
0xe2ff5b8d36d29113020f96398d269f51ddeb8104b4d75716a7a8168969a88b5e
Copyright registration time
2026-06-25T18:55:24+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-08T03:22:41Z
Bitcoin block
957120
Canonical record hash
sha256:d44964cd17286d154a7b9e16a7d07e7f69e2778aab743665917176408afe721e

What this proof establishes

This recording was released in 1995, before generative AI. ProofProfile's catalogue derives from the pre-2022 AcousticBrainz and MusicBrainz source corpus, and 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.