__NOTOC__ Vinal may refer to: People Arthur H. Vinal (1854-1923), American architect Robert A. Vinal (1821-1887), American businessman William G. Vinal (1881–1976), American outdoors educator Vi
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 0x8405e55157a8ceb4d5d5a0dd3fd485b286536ee55720b8d545f96b523bb6bb34. Chain 2 (Bitcoin): anchored in block 954065 (2026-06-17T08:10:43Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/4c31442a-6e42-43c7-a50c-f47f6846daf1.json and https://artists.proofprofile.net/proofs/artist/4c31442a-6e42-43c7-a50c-f47f6846daf1.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).