Blues O Tom, Že Život Je Chlap

Recording by Marta Kubišová.

Recording identifiers

ISRC
CZA166700043
CopyrightID (CopyrightChains transaction hash)
0x49a7a9af00dbe6b6c4940c6bc6ef66b89204f4881e2654615041653a08ae39e6
Copyright registration time
2026-07-31T17:26:46+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-31T17:29:52Z
Bitcoin block
960441
Canonical record hash
sha256:bf8ffc38cf29d0761e62652fc278a1bb5120193d1a9dac6f69934868627c2d33

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.