West Side Story: X. Tonight (Ensemble)

Recording by Leonard Bernstein.

Recording identifiers

ISRC
DEF058430608
CopyrightID (CopyrightChains transaction hash)
0x46dd7f891a5edac39a4b48e006540f984fae8faee66a2c0fd8eb5a10cd0da7bf
Copyright registration time
2026-07-06T05:05:22+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-06T06:56:49Z
Bitcoin block
956889
Canonical record hash
sha256:0a4095c9c2fe7be0621a061ea9317935d78ff7b06b2cad42c03b1d020f40886e

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.