Kolęda Warszawska

Recording by Zbigniew Preisner.

Recording identifiers

ISRC
GBE7J1112005
CopyrightID (CopyrightChains transaction hash)
0x03c2f067edfdd52b54420840bf2c19328466407c2ce2cb08127f402b332faef5
Copyright registration time
2026-06-21T07:17:38+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-02T03:30:09Z
Bitcoin block
956302
Canonical record hash
sha256:ca356e2794a97cca52b38b1d042f6e8d155957dd0e65f5032d91f56dc33e8a04

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.