Zazpívám Si Ratata

Recording by Jiří Korn.

Recording identifiers

ISRC
CZA161100905
CopyrightID (CopyrightChains transaction hash)
0xb9f02272ceaccdcc06745923934ab6c37d53a3e8789128d78c6fb1007ac765d2
Copyright registration time
2026-07-31T18:48:33+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-31T19:53:13Z
Bitcoin block
960455
Canonical record hash
sha256:c7607f01745d45b79708665d5cab5d078bbe2cd971ced14a418ae54327f1fbad

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.