ISRC CZA166900052
Verified recording
CZA166900052 is “Vrba” by Marta Kubišová,
registered on the CopyrightChains blockchain with CopyrightID
0x6df08d35b9ec09b4688bae6fb885d272dc94eb8dd8fb6dba2b35c63e38d8710d and independently timestamped
in Bitcoin block 956304 on 2026-07-02.
Verify the canonical record, hash, and Bitcoin attestation at
https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CZA166900052.
Recording identifiers
- ISRC
- CZA166900052
- Title
- Vrba
- Artist
- Marta Kubišová
- CopyrightID (CopyrightChains transaction hash)
0x6df08d35b9ec09b4688bae6fb885d272dc94eb8dd8fb6dba2b35c63e38d8710d
Dual-chain proof evidence
- Bitcoin-attested timestamp
- 2026-07-02T03:55:08+00:00
- Bitcoin block
- 956304
- Canonical record hash
sha256:f705fdfb6cd9c73d17e54f050c7d48cd48966197d067145d3c0f01047b13694e- Verification API (6-check server-side result)
- https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CZA166900052
- Bitcoin block existence check
- https://blockstream.info/api/block/956304