Nejdřív Je Trénink

Recording by Jiří Korn.

Recording identifiers

ISRC
CZA168500223
CopyrightID (CopyrightChains transaction hash)
0x93b08aa10844df151cd5c516557e88dac1dc26251bac2c4d9e5c4d387be52439
Copyright registration time
2026-06-24T18:41:34+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-02T03:55:08Z
Bitcoin block
956304
Canonical record hash
sha256:6842d739e9087e7de44d5e92c2a41e694b740de8b4ddfd57c8fec530b0f10b24

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.