Oboe Concerto: 2. Poco andante

Recording by Bohuslav Martinů.

Recording identifiers

ISRC
NLA509101012
CopyrightID (CopyrightChains transaction hash)
0x5cfb48b7588537a9530a430acf6c26e8c221bf67b897e4b835de2f660b5bf461
Copyright registration time
2026-07-07T19:39:26+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-08T03:22:41Z
Bitcoin block
957120
Canonical record hash
sha256:d9e51c2a9b84e766799585f60f72a4ea98f22fd140bc90cabfbf5757ddae0e37

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.