Jsi - Tu

Recording by Petr Rezek.

Recording identifiers

ISRC
CZA650401935
CopyrightID (CopyrightChains transaction hash)
0x15165c20ec311ea9c4cb825c32ba78f4c6fc5d0c0ce75236bdd2a7a9dafb4882
Copyright registration time
2026-07-04T05:41:34+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-08T03:20:19Z
Bitcoin block
957118
Canonical record hash
sha256:c9f9189aaabbe1d4cf5b9e6f394b523b30e29cd9555ae052b9077f5f4415a0b2

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.