Ukolebavka

Recording by Janek Ledecky.

Recording identifiers

ISRC
CZA210400127
CopyrightID (CopyrightChains transaction hash)
0x91d65e3489da0ab2996639d5d10e492f82cbb6a800d6709a35f79a08ea4022c9
Copyright registration time
2026-07-29T16:38:01+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-29T21:09:47Z
Bitcoin block
960144
Canonical record hash
sha256:f3fdbb635cce7b7babae51ac3a70984ee05c33d353ca22bd135129a0c5da9435

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.