Urgent may refer to: Urgent (American band), a 1980s band from New York City Urgent (Canadian band), a 1980s band from Toronto, Ontario, Canada "Urgent" (song), a 1981 song by Foreigner Urgent! Re
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 0xbb4199bc36b1f6b3d0788aaae199b5fef5f7beea9587f7faf13cb09b011fcb8d. Chain 2 (Bitcoin): anchored in block 954631 (2026-06-21T02:46:24Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/d0b5b68f-0f7a-4ca4-b17b-68d9a83d5c3f.json and https://artists.proofprofile.net/proofs/artist/d0b5b68f-0f7a-4ca4-b17b-68d9a83d5c3f.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).