Compositum I - Instrumental

Recording by Leszek Możdżer.

Recording identifiers

ISRC
PL6A22331330
CopyrightID (CopyrightChains transaction hash)
0xa7cc6c0c7e2727c528fbb3b39b41b6c14c247a714d3dbaa72b9c55c51459586e
Copyright registration time
2026-07-29T21:40:11+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-29T21:51:49Z
Bitcoin block
960150
Canonical record hash
sha256:037215f925740dee9ee4f9b28f31f9786e4d2e2dcf4c72c6167cd254bc1eea7a

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.