thumb|Three flavors of muffin: blueberry, chocolate, and chocolate chip. A muffin is a type of individual-sized baked good. It is often a small, sweet quickbread or cake in a cup-shaped container. It
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 0x0f7e9539782809991342fde5cee38771f1edd6059540082ea5b1e951036ae3d9. Chain 2 (Bitcoin): anchored in block 954553 (2026-06-20T11:51:30Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/abb6aad0-da07-4904-af69-943e49c7e209.json and https://artists.proofprofile.net/proofs/artist/abb6aad0-da07-4904-af69-943e49c7e209.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).