ISRC CZA168300221
Verified recording
CZA168300221 is “Můj sok” by Karel Zich,
registered on the CopyrightChains blockchain with CopyrightID
0x1bb4bf140cd928ffd8ac8c2e26d06e0d80016018def027024514ae3fcc6ad9ec and independently timestamped
in Bitcoin block 960340 on 2026-07-31.
Verify the canonical record, hash, and Bitcoin attestation at
https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CZA168300221.
Recording identifiers
- ISRC
- CZA168300221
- Title
- Můj sok
- Artist
- Karel Zich
- CopyrightID (CopyrightChains transaction hash)
0x1bb4bf140cd928ffd8ac8c2e26d06e0d80016018def027024514ae3fcc6ad9ec
Dual-chain proof evidence
- Bitcoin-attested timestamp
- 2026-07-31T03:15:04+00:00
- Bitcoin block
- 960340
- Canonical record hash
sha256:ef7c22211150c3fc8c30241b8a1ef6dc9bc22a289895ac6be30e6e344ab688b5- Verification API (6-check server-side result)
- https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CZA168300221
- Bitcoin block existence check
- https://blockstream.info/api/block/960340