1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → block must exist at that height 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 0xbc6abb8234d275a9031f27ee37eafd86c0a98b32b59c11d83a58cebc5baec541. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/48a741f9-86dc-4fcf-a3ba-ab86e1469558.json and https://artists.proofprofile.net/proofs/artist/48a741f9-86dc-4fcf-a3ba-ab86e1469558.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
20 Mas Buscadas de Tierra Caliente, Vol. 4
20 Mas Buscadas de Tierra Caliente, Vol. 2