Cicho grajcie mi znów

Recording by Mieczysław Fogg.

Recording identifiers

ISRC
PLB990888019
CopyrightID (CopyrightChains transaction hash)
0xd7656afadd43c87085b91206a1569c523a140220bd608ddbda488a7005657785
Copyright registration time
2026-07-06T23:42:47+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-08T03:20:19Z
Bitcoin block
957118
Canonical record hash
sha256:b87781c54d4699284dbf4ed4bc2f301379d6b10de22e1147c92b11e8d0d658b9

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.