To jiste zahy zvazi kral

Recording by Josef Vojtek.

Recording identifiers

ISRC
CZA231700402
Release date of the album this recording appears on
2017-11-10
CopyrightID (CopyrightChains transaction hash)
0xef104ade72cabc068b420e69b8b468a3ea96dc0efa845567c094758949a350f5
Copyright registration time
2026-06-25T10:18:52+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-02T03:55:08Z
Bitcoin block
956304
Canonical record hash
sha256:8746ad0222d4e3c2e6f4fa7e9837b4eaa88a1438cc73cce3b36367028c0fce4f

What this proof establishes

This recording was released in 2017, 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.