Vlak Do Lepsich Casu

Recording by Janek Ledecky.

Recording identifiers

ISRC
CZA210200809
CopyrightID (CopyrightChains transaction hash)
0xc2ca2f8d65b779606b7a292ec68a6bc1303352a4e9c58ef4454b017486a45e72
Copyright registration time
2026-07-29T20:12:18+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-29T21:09:47Z
Bitcoin block
960144
Canonical record hash
sha256:89a2898b41626d9089c549035a7fbc025f224e99348cf587091189af9ad9ff02

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.