Opona

Recording by Hana Zagorová.

Recording identifiers

ISRC
CZA168100008
CopyrightID (CopyrightChains transaction hash)
0x7cb899f6df69387edf10f9ed52519edd99c51723f80ecbf718f4fce1f7759889

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-29T11:07:37Z
Bitcoin block
960095
Canonical record hash
sha256:985b5b5db6e1dd1de0e264bab7a6d36dd3e1c6d2cc4f68381507329f201fb93e

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.