ISRC CZUM71900316
Verified recording
CZUM71900316 is “Já už vím” by Laďka Kozderková,
registered on the CopyrightChains blockchain with CopyrightID
0xe3fea567b01c5f694e147b3a94e59f22fe4cd6e3b435e74fe7004f121cd86441 and independently timestamped
in Bitcoin block 957118 on 2026-07-08.
Verify the canonical record, hash, and Bitcoin attestation at
https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CZUM71900316.
Recording identifiers
- ISRC
- CZUM71900316
- Title
- Já už vím
- Artist
- Laďka Kozderková
- CopyrightID (CopyrightChains transaction hash)
0xe3fea567b01c5f694e147b3a94e59f22fe4cd6e3b435e74fe7004f121cd86441
Dual-chain proof evidence
- Bitcoin-attested timestamp
- 2026-07-08T03:20:19+00:00
- Bitcoin block
- 957118
- Canonical record hash
sha256:d0ce2c1ec4fa9c5785ab1d1b83d0eec924a0836312776219b1eae3ac555452c9- Verification API (6-check server-side result)
- https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CZUM71900316
- Bitcoin block existence check
- https://blockstream.info/api/block/957118