Kareem (alternatively spelled Karim, Kerim or Karem) () is a given name and surname of Arabic origin that means "generous", "noble", "honourable". It is also one of the Names of God. Given name Karim
1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 5. GET OTSVerificationAPI → pre-computed 6-check result from server 6. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa86eb25ac062d7d88882ce093b73a87b05e9c4a19c8740a2d898bc49ce89ebd4. Chain 2 (Bitcoin): anchored in block 954066 (2026-06-17T08:11:48Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/5be52b2f-1c93-4b09-a6fa-6a06ff5b7349.json and https://artists.proofprofile.net/proofs/artist/5be52b2f-1c93-4b09-a6fa-6a06ff5b7349.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).