Šťastná ústa

Recording by Karel Zich.

Recording identifiers

ISRC
CZA168900184
Release date of the album this recording appears on
2019-06-18
CopyrightID (CopyrightChains transaction hash)
0xa17f3229fd9ace9f9151feb9a34137dafdb7f8bc1a03223e8fc28e8f8371631d

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-30T22:27:30Z
Bitcoin block
960321
Canonical record hash
sha256:dd88228d33cc9cad51d37c0d269ade8fdbae032aae1e023c3eb5a93461fe5bc3

What this proof establishes

This recording was released in 2019, before generative AI. ProofProfile's catalogue derives from the pre-2022 AcousticBrainz and MusicBrainz source corpus, and 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.