To jsem ja

Recording by Frantisek Nedved.

Recording identifiers

ISRC
CZA120203011
CopyrightID (CopyrightChains transaction hash)
0x258c39572e5f0f6f3c33f4e24ff047083b382653ab6966f9a9c200f7fc99a4d7
Copyright registration time
2026-06-25T14:12:19+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-02T03:55:08Z
Bitcoin block
956304
Canonical record hash
sha256:62acdc66d76a668381548b6a5ed21e38b0ce354a8d10835e834764ae5e9a00ff

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.