Zagadka

Recording by Grzegorz Hyży.

Recording identifiers

ISRC
PLB381400166
CopyrightID (CopyrightChains transaction hash)
0xb1d72a3e67fb8086da51b15279ab3ee50bec2c6c037e670c890237752fc5e148
Copyright registration time
2026-06-20T13:43:47+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-02T03:30:09Z
Bitcoin block
956302
Canonical record hash
sha256:921960fa24ec0889fcdf0531f57beec3412e795a48af14fc26be439cebd13feb

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.