Co warto

Recording by Jan Janga Tomaszewski.

Recording identifiers

ISRC
PLB171101176
CopyrightID (CopyrightChains transaction hash)
0x99c2fd43e6ee5a77a0289edb546c0c97cca0aef5ff26564f5b156c81ddffaee0
Copyright registration time
2026-08-01T03:33:38+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-08-01T03:50:58Z
Bitcoin block
960506
Canonical record hash
sha256:e1c9c3981429fdfeb66a85f8c5fa3791702a86f1f12d57309faf9b31c2f36145

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.