To nic że to sen

Recording by Katarzyna Groniec.

Recording identifiers

ISRC
PLB171600258
CopyrightID (CopyrightChains transaction hash)
0xf1dc6e5212db43f8c1e489d5568261b119585090d98954f2df0ba94e90ee65fc
Copyright registration time
2026-07-31T14:19:25+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-31T15:20:15Z
Bitcoin block
960418
Canonical record hash
sha256:bfbe88c5bb8d76292eef3134d552174516e34ef559dc777f62a7210c20000ff9

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.