Umair (, Bangla: উমাইর/উমায়ের ), also spelled Umayr, Umayer or Umyr is an Arabic male given name, meaning one who is intelligent. The name is common in Bangladesh and Pakistan and the people of their
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 0x0d29f757a0628b64f0eee847e2f87eabbf6904177befe77b65b71764c1678bfc. Chain 2 (Bitcoin): anchored in block 954667 (2026-06-21T07:29:20Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/c9e95548-48d0-4e38-be78-b1f7194d342c.json and https://artists.proofprofile.net/proofs/artist/c9e95548-48d0-4e38-be78-b1f7194d342c.ots, the client at https://opentimestamps.org runs `ots verify -f record.json proof.ots`.