Niewiadoma

Recording by Kasia Cerekwicka.

Recording identifiers

ISRC
PLB381500175
CopyrightID (CopyrightChains transaction hash)
0xd5bca55fd4bfc9896dd5ff8e24b0dfc0ad2de923961091ef221bb870294dd83c
Copyright registration time
2026-07-31T04:49:30+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-31T05:17:02Z
Bitcoin block
960348
Canonical record hash
sha256:89646527e79ec78778cf74c939d88e62c976c663fb666f88062566deab9de53c

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.