thumb|upright=1.3|Araucanos and Huasos in Chile, 19th century thumb| A market scene, Ruana in Bogotá, circa 1860 thumb|A Peruvian chalán dancing marinera on a Peruvian Paso horse A poncho (; ; ; "bl
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 0xd434d15e24cf26e9c16c1cd4e7e0e2e2a30be02c3018de82026ae1b57ec9016f. Chain 2 (Bitcoin): anchored in block 954728 (2026-06-21T18:08:38Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/f8410196-9f37-41b4-aff5-54445683fd21.json and https://artists.proofprofile.net/proofs/artist/f8410196-9f37-41b4-aff5-54445683fd21.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).