Pedro Rivas may refer to: Pedro Rivas (basketball), Panamanian basketball player Pedro Geoffroy Rivas, Salvadoran anthropologist, poet, and linguist Pedro Rivas Cuéllar, Mexican politician and rad
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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdc60443ac6a036d3a4e0e5f72c581cfa7afa1f1860f8113645e82e386f551afd. 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/72b10a38-8333-4974-b013-bfa563cbabeb.json and https://artists.proofprofile.net/proofs/artist/72b10a38-8333-4974-b013-bfa563cbabeb.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).