Nikdy To Nevzdám

Recording by Janek Ledecky.

Recording identifiers

ISRC
CZH681400045
CopyrightID (CopyrightChains transaction hash)
0xa243d2c9bdfaf967e0508ec564d860037225afcf25f0dbda5735acf52c2c65bc
Copyright registration time
2026-06-24T18:39:26+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-02T03:55:08Z
Bitcoin block
956304
Canonical record hash
sha256:4367fad984566b4143c8c1536304c296edd2d581c13c52be78b4af158e56ddfc

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.