Lullaby II

Recording by Zbigniew Preisner.

Recording identifiers

ISRC
PLX351900047
CopyrightID (CopyrightChains transaction hash)
0x20028cc4633eb1a7700c655f2a28bcb2a396d580aedac650060c4089990548c3
Copyright registration time
2026-07-31T22:00:58+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-31T22:27:44Z
Bitcoin block
960473
Canonical record hash
sha256:42fb4c38f886d7dac9dd4e3aaade3ff00da5045a1bf03c8aec95cb926a5bf451

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.