Posílám Ti

Recording by Janek Ledecky.

Recording identifiers

ISRC
CZA540685306
CopyrightID (CopyrightChains transaction hash)
0xb9bcd9b99f980a49686bccc16cbe028481ffa01b8ad3ef5fc9c4e404cca349fe
Copyright registration time
2026-07-29T22:06:31+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-29T22:12:10Z
Bitcoin block
960157
Canonical record hash
sha256:b6602141d3b8f563bf2a952e04b4585b92b0d4fbfcc1e4294c2ff035776c3ae4

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.