Tak Abyste To Věděla

Recording by Waldemar Matuška.

Recording identifiers

ISRC
CZA161100567
CopyrightID (CopyrightChains transaction hash)
0x2f29ead5ce6d7a1ecc8fa7b4434e26c6c34d0731f61c55939f96d993fe162ec2
Copyright registration time
2026-07-06T21:02:05+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-08T03:20:19Z
Bitcoin block
957118
Canonical record hash
sha256:e5ba26e00a629f41faae05f884f2cbf91513dee1af7fc2d26791945880465e7b

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.