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.