Noc je dlouhá

Recording by Janek Ledecky.

Recording identifiers

ISRC
CZA110306051
CopyrightID (CopyrightChains transaction hash)
0xec2243a733b2842f2ee41e7ef49e3fa899490a3b85893fd8a4992f7fcaf06ebd

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-31T17:29:52Z
Bitcoin block
960441
Canonical record hash
sha256:abf140d01dcdb5bd9724c43124ec89951483036177f034022cbc0be290822f22

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.