Shareef may refer to: Shareef (given name), an Arabic male given name Shareef (surname), an Arabic surname See also Sharif, title for descendants of Muhammad Sharif (disambiguation)
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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5eba1d840d0150ec7ee6a20edcdd2e0cb572874ae4c9bcc1129f06684845dffb. Chain 2 (Bitcoin): anchored in block 954019 (2026-06-16T23:44:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/36f589b3-da63-46cf-9c79-e4e8f3335bf4.json and https://artists.proofprofile.net/proofs/artist/36f589b3-da63-46cf-9c79-e4e8f3335bf4.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).