Juan Gualberto Guevara B.A. J.C.D. (12 July 1882 – 27 November 1954) was created on 18 February 1946 as a Cardinal Priest by Pope Pius XII. He was Archbishop of Lima in the Roman Catholic Church. He w
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 0xa69749113e3970ba50862984f3097dd049f8c301f110033f1bfc7e9b7c1b5589. Chain 2 (Bitcoin): anchored in block 954066 (2026-06-17T08:11:48Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/6fd8c26a-801a-4df7-af7d-44d2ce3db838.json and https://artists.proofprofile.net/proofs/artist/6fd8c26a-801a-4df7-af7d-44d2ce3db838.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).