thumb|A Samoan woman with is a traditional Samoan tattoo applied to women. The covers the legs from just below the knee to the upper thighs just below the buttocks, and is typically finer and more
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 0x155713228aa0e9ea36b00f44002c035733a3067c5b8989e51a1d88a2812f70e0. Chain 2 (Bitcoin): anchored in block 954516 (2026-06-20T07:04:44Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/a2aac260-9941-480c-a9b2-6db6926204bd.json and https://artists.proofprofile.net/proofs/artist/a2aac260-9941-480c-a9b2-6db6926204bd.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).