Compositum IV - Instrumental

Recording by Leszek Możdżer.

Recording identifiers

ISRC
PL6A22331334
CopyrightID (CopyrightChains transaction hash)
0x7809d60d2a2e0e4c9b305e889c23a6f08fe23811b0c3226e93b79c4a2e535e3a
Copyright registration time
2026-07-30T21:20:02+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-30T21:35:24Z
Bitcoin block
960317
Canonical record hash
sha256:84a8af082b457c92a61b1a141e5598e1b7167d883a68e5101e9443ee2fa732af

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.