Mattinata (from "West Side Story") - Live

Recording by Ruggero Leoncavallo.

Recording identifiers

ISRC
ITB001600387
CopyrightID (CopyrightChains transaction hash)
0x5a646467da463c3cc87d21116c6aa1c4cd3840881b8a7202a2d42491a8279c4d
Copyright registration time
2026-06-10T14:56:06+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-06-13T13:32:09Z
Bitcoin block
953520
Canonical record hash
sha256:fe70791a1fed58b0712c22b3617b1fadc25a0c23279354b966ea8838e39100ea

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.