ISRC CZA166300026
Verified recording
CZA166300026 is “Nej, Nej, Nej...” by Josef Zíma,
registered on the CopyrightChains blockchain with CopyrightID
0xc2d57ce046879be1785889f70dd757d0bd5888104db083b2af1245dc07f7f44b and independently timestamped
in Bitcoin block 953515 on 2026-06-13.
Verify the canonical record, hash, and Bitcoin attestation at
https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CZA166300026.
Recording identifiers
- ISRC
- CZA166300026
- Title
- Nej, Nej, Nej...
- Artist
- Josef Zíma
- CopyrightID (CopyrightChains transaction hash)
0xc2d57ce046879be1785889f70dd757d0bd5888104db083b2af1245dc07f7f44b
Dual-chain proof evidence
- Bitcoin-attested timestamp
- 2026-06-13T12:53:06+00:00
- Bitcoin block
- 953515
- Canonical record hash
sha256:20ef9b559e7d27cb965f652e1df91460e1df1d314655af5f0ffc03c2ee2ea9e3- Verification API (6-check server-side result)
- https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CZA166300026
- Bitcoin block existence check
- https://blockstream.info/api/block/953515