ISRC CZA167900138
Verified recording
CZA167900138 is “Sestra Margit” by Jiří Korn,
registered on the CopyrightChains blockchain with CopyrightID
0x57516672767176a52043a4c77c123f400d2e446cc07f117a0610473ee3f37820 and independently timestamped
in Bitcoin block 960121 on 2026-07-29.
Verify the canonical record, hash, and Bitcoin attestation at
https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CZA167900138.
Recording identifiers
- ISRC
- CZA167900138
- Title
- Sestra Margit
- Artist
- Jiří Korn
- CopyrightID (CopyrightChains transaction hash)
0x57516672767176a52043a4c77c123f400d2e446cc07f117a0610473ee3f37820
Dual-chain proof evidence
- Bitcoin-attested timestamp
- 2026-07-29T15:22:21+00:00
- Bitcoin block
- 960121
- Canonical record hash
sha256:91b092b8549c4775affb13fc4f46de1eccaa2f151bed85e5be58835b86c311d9- Verification API (6-check server-side result)
- https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CZA167900138
- Bitcoin block existence check
- https://blockstream.info/api/block/960121