Symphony No. 3: VII. A tempo - Poco meno mosso - Presto

Recording by Witold Lutosławski.

Recording identifiers

ISRC
GBLWD1006007
CopyrightID (CopyrightChains transaction hash)
0xc1d7548756b2ba93b86480bff789e0c960eab6e567c2cbd17fc8af23c9218b73
Copyright registration time
2026-07-31T15:46:35+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-31T15:59:18Z
Bitcoin block
960427
Canonical record hash
sha256:c4222baa799429d7522fabb43a8108319684be7c12692823be6a96079c05d236

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.