ISRC CZA167200922
Verified recording
CZA167200922 is “A Dear John Letter” by Naďa Urbánková,
registered on the CopyrightChains blockchain with CopyrightID
0xf5e169825d7af28326ee7c8722a31203c82e6a5c3b9a35f762249f171472d48a and independently timestamped
in Bitcoin block 960225 on 2026-07-30.
Verify the canonical record, hash, and Bitcoin attestation at
https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CZA167200922.
Recording identifiers
- ISRC
- CZA167200922
- Title
- A Dear John Letter
- Artist
- Naďa Urbánková
- CopyrightID (CopyrightChains transaction hash)
0xf5e169825d7af28326ee7c8722a31203c82e6a5c3b9a35f762249f171472d48a
Dual-chain proof evidence
- Bitcoin-attested timestamp
- 2026-07-30T08:04:30+00:00
- Bitcoin block
- 960225
- Canonical record hash
sha256:45e83e079ac269c90727164c9acac77630f6950e350b7e1d65f68c7d280d7fe4- Verification API (6-check server-side result)
- https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CZA167200922
- Bitcoin block existence check
- https://blockstream.info/api/block/960225