Artysty smutny walc

Recording by Michał Bajor.

Recording identifiers

ISRC
PLB171300050
CopyrightID (CopyrightChains transaction hash)
0x863ac0387775ff15cddb5b8c64965cc3a2c33be6b71c2a9dd1304b6f64ed1153
Copyright registration time
2026-07-06T07:49:24+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-07T18:39:05Z
Bitcoin block
957073
Canonical record hash
sha256:77614c48dd4f6069b6decdf46d00898ece8e4a0ca481d6108d4a21268288ef7e

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.