Nie żałuję

Recording by Ewa Błaszczyk.

Recording identifiers

ISRC
PLB171600029
CopyrightID (CopyrightChains transaction hash)
0xc7b4fc811cd1f6601db186d2771952f5e31ae5c841815bfcc32f755c2ce7b07c
Copyright registration time
2026-06-10T10:25:41+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-06-13T13:32:09Z
Bitcoin block
953520
Canonical record hash
sha256:ad5568338bdae168820264784e52f05bc4ffc06f007d3961c2a2c11a8a1ef0da

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.