West Side Story: IV. The Dance at the Gym: a. Blues

Recording by Leonard Bernstein.

Recording identifiers

ISRC
DEF058430616
Release date of the album this recording appears on
1998-01-01
CopyrightID (CopyrightChains transaction hash)
0xc8b786773273d07ed339633ad0450fed7749615273b7fc0ad25e0928888c3c9f
Copyright registration time
2026-07-06T04:34:05+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-06T07:53:57Z
Bitcoin block
956894
Canonical record hash
sha256:67166edb04d83c8435551e152c55d64a7d782302619d8674c1582c68d529ba2f

What this proof establishes

This recording was released in 1998, 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.