Przemijamy

Recording by Sidney Polak.

Recording identifiers

ISRC
PLB020300006
CopyrightID (CopyrightChains transaction hash)
0x2d999a453d41f8b55bfd548f13404f638b5419b64d51745f1f00c326a0c93ed4
Copyright registration time
2026-06-18T11:54:20+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-02T03:30:09Z
Bitcoin block
956302
Canonical record hash
sha256:db92f0aab54e995a711c14df1961be6eb6ebbf00bef6e53bb0a50ea0f85401ac

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.