West Side Story: Act I: Prologue

Recording by Leonard Bernstein.

Recording identifiers

ISRC
USSM16001097
CopyrightID (CopyrightChains transaction hash)
0x4ca86407fba393fd4456705e11637a705084503a07a46eb30918de13da425b7d
Copyright registration time
2026-06-06T10:01:29+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-06-13T12:47:07Z
Bitcoin block
953513
Canonical record hash
sha256:9aa78941b4e3a1a991b8c0fa7b13a00316f0350054c7ff80c9a3d8b178b931b3

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.