Jo, Jo A Je To Tak

Recording by Darek Vostřel.

Recording identifiers

ISRC
CZA166600009
Release date of the album this recording appears on
1996-01-01
CopyrightID (CopyrightChains transaction hash)
0x86ad988e7443976703e994bc15e0cdf70eb474e3762fea791ff1afc4cbb8e882
Copyright registration time
2026-07-06T10:08:36+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-08T03:20:19Z
Bitcoin block
957118
Canonical record hash
sha256:dcc927d4604c2f15b7dc969acef0ef215a39529d3b64b0aa8792d56a2dc4f487

What this proof establishes

This recording was released in 1996, 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.