C:4 Cool (from West Side Story)

Recording by Leonard Bernstein.

Recording identifiers

ISRC
GBEYQ2456936
CopyrightID (CopyrightChains transaction hash)
0x4fd8ef85b87f0c34e56ce7080f04bf8ff812d2051a3cab7dc8b72d67259c6922
Copyright registration time
2026-07-06T20:41:20+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-08T03:20:19Z
Bitcoin block
957118
Canonical record hash
sha256:45f24d3d5461b9594975690b2d5749e3ce79548562ac8aa2cd56ee60bedd56f4

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.