ISRC CZUM72200368
Verified recording
CZUM72200368 is “You Don't Know” by Koukr,
registered on the CopyrightChains blockchain with CopyrightID
0x003ec6c6327896cbb910c3b816ff2b01142511fb2d83d479a17ac5d6d9d9d7e2 and independently timestamped
in Bitcoin block 953515 on 2026-06-13.
Verify the canonical record, hash, and Bitcoin attestation at
https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CZUM72200368.
Recording identifiers
- ISRC
- CZUM72200368
- Title
- You Don't Know
- Artist
- Koukr
- CopyrightID (CopyrightChains transaction hash)
0x003ec6c6327896cbb910c3b816ff2b01142511fb2d83d479a17ac5d6d9d9d7e2
Dual-chain proof evidence
- Bitcoin-attested timestamp
- 2026-06-13T12:53:06+00:00
- Bitcoin block
- 953515
- Canonical record hash
sha256:7588b3ae3c49510073cdb1fcbc5240eb6b42570503b61a26573495acc2052ab9- Verification API (6-check server-side result)
- https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CZUM72200368
- Bitcoin block existence check
- https://blockstream.info/api/block/953515