upright|thumb|A tea strainer made of metal mesh thumb|right|Metal screen mesh thumb|A watch with a stainless steel mesh bracelet A mesh is a barrier made of interlaced strands of metal, fiber or othe
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 0x762d8df2a86a9a2e9d4a1b3e12d9a17db062bb33d6794636747b857a88314491. Chain 2 (Bitcoin): anchored in block 953949 (2026-06-16T13:28:01Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/09b8085a-5e86-4173-aa3b-786cf5a1c1f8.json and https://artists.proofprofile.net/proofs/artist/09b8085a-5e86-4173-aa3b-786cf5a1c1f8.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).