Já Už To Vím

Recording by Václav Neckář.

Recording identifiers

ISRC
CZA161300808
CopyrightID (CopyrightChains transaction hash)
0xcfbbb006b372a03128f9ffd6c429541d6fc522915751c37f2f113f3946536f41
Copyright registration time
2026-06-05T13:33:41+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-06-13T12:47:07Z
Bitcoin block
953513
Canonical record hash
sha256:f8616147de8a3fd703e5625c3c53e6187f0d51849f86f95e83357bb87540dc50

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.