ISRC CZUM71400288
Verified recording
CZUM71400288 is “Ja to vedel....” by Jaroslav Marvan,
registered on the CopyrightChains blockchain with CopyrightID
0xb5052d0646f4f57c14930f93cc34fcbb3ae41f7e66988a7b1afbdd64bebabc4b 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/CZUM71400288.
Recording identifiers
- ISRC
- CZUM71400288
- Title
- Ja to vedel....
- Artist
- Jaroslav Marvan
- CopyrightID (CopyrightChains transaction hash)
0xb5052d0646f4f57c14930f93cc34fcbb3ae41f7e66988a7b1afbdd64bebabc4b
Dual-chain proof evidence
- Bitcoin-attested timestamp
- 2026-07-02T03:55:08+00:00
- Bitcoin block
- 956304
- Canonical record hash
sha256:c292f991c4a9622503e5cddddb4a9fe75df6bc5e2a56000015cc8551a8409553- Verification API (6-check server-side result)
- https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CZUM71400288
- Bitcoin block existence check
- https://blockstream.info/api/block/956304