Když Jsem Já Byl Mladý Zajíc

Recording by Karel Hála.

Recording identifiers

ISRC
CZA160100135
CopyrightID (CopyrightChains transaction hash)
0xb6691325b015a5a3907ab210773e93d89150d149025a8bf76b8abe26ce8fb933
Copyright registration time
2026-07-07T20:03:29+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-08T03:39:04Z
Bitcoin block
957122
Canonical record hash
sha256:363a4d6e4e94de7db7308c74652eb97c6b544220dee38987f4d9f369550d14b6

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.