Raz do roku

Recording by Olga Bończyk.

Recording identifiers

ISRC
PLB171800549
CopyrightID (CopyrightChains transaction hash)
0x7957d97e4ffc9b5145c3912f354fb20747cc64f7de42206f780c5cb384a1ecab
Copyright registration time
2026-06-24T22:27:13+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-02T03:55:08Z
Bitcoin block
956304
Canonical record hash
sha256:d35c73a426b3c775c7254119aa136a1106c13a5142090b629b6c8cdce9f62bb4

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.