thumb|Mohini, the female form of Vishnu, holding the pot of amrita, which she distributes amongst all the devas, leaving the asuras without it. Darasuram, Tamil Nadu, India|alt=A stone carving of a st
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 0xfc2e396bc26760739d2a332b7919adc47e0b49a7390fd79126f322467d474419. Chain 2 (Bitcoin): anchored in block 954603 (2026-06-20T21:47:54Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/c3b6094a-3057-4411-b2f5-7f754edf5db9.json and https://artists.proofprofile.net/proofs/artist/c3b6094a-3057-4411-b2f5-7f754edf5db9.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).