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
- 1995-01-01
- CopyrightID (CopyrightChains transaction hash)
- 0xc8b786773273d07ed339633ad0450fed7749615273b7fc0ad25e0928888c3c9f
- Copyright registration time
- 2026-07-06T04:34:05+00:00
OpenTimestamps proof evidence
- Bitcoin-attested timestamp
- 2026-07-08T03:20:19Z
- Bitcoin block
- 957118
- Canonical record hash
- sha256:3047ece2f3144f41cf1b8fe0323b77d2f42c1c5d8b69d691b228a0cd7cbcb27a
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.