Concerto for Orchestra: II. Capriccio notturno e arioso

Recording by Witold Lutosławski.

Recording identifiers

ISRC
PLB351319602
CopyrightID (CopyrightChains transaction hash)
0x5d39c19ffb616c1111274c2d231697b864d97c2dddb6a143cb08488700e287fb
Copyright registration time
2026-07-06T19:36:10+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-08T03:20:19Z
Bitcoin block
957118
Canonical record hash
sha256:5da4336b53a82b341159d61c25d73a21e1fde964ee3600e2e1a199be32747aba

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.