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 0x31bdc0fa7e03fc9bc45875f7a25c21947b0ad9dfaac58679a8c4df7fbd2bd579. Chain 2 (Bitcoin): anchored in block 954500 (2026-06-20T04:47:29Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/9b340283-1f8d-4bdb-9054-c4f3a1369889.json and https://artists.proofprofile.net/proofs/artist/9b340283-1f8d-4bdb-9054-c4f3a1369889.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Credo, Domine (Hino Oficial do Ano da Fé)
Abri as portas a Cristo (Tributo a São João Paulo II)