ISRC CZUM71400270
Verified recording
CZUM71400270 is “Ja vim, ze ma laska” by Karel Höger,
registered on the CopyrightChains blockchain with CopyrightID
0xecf0055ad3d5e0c2ad18628be123426e282c38dd6cf6c9a5636828b792f4988d and independently timestamped
in Bitcoin block 956302 on 2026-07-02.
Verify the canonical record, hash, and Bitcoin attestation at
https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CZUM71400270.
Recording identifiers
- ISRC
- CZUM71400270
- Title
- Ja vim, ze ma laska
- Artist
- Karel Höger
- CopyrightID (CopyrightChains transaction hash)
0xecf0055ad3d5e0c2ad18628be123426e282c38dd6cf6c9a5636828b792f4988d
Dual-chain proof evidence
- Bitcoin-attested timestamp
- 2026-07-02T03:30:09+00:00
- Bitcoin block
- 956302
- Canonical record hash
sha256:96e2c7d9da70304507ab06a212b8792d8eb25fb7bf531babb487807fdc68c3bd- Verification API (6-check server-side result)
- https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CZUM71400270
- Bitcoin block existence check
- https://blockstream.info/api/block/956302