Cesareo or Cesáreo is a given name. Notable people with the given name include: Cesáreo Bernaldo de Quirós (1879–1968), Argentine painter Cesáreo Gabaráin (1936–1991), Spanish priest and composer Ces
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 0xa374e173ef018c8676ca556faf6f3ea6b3486441999b9f7b1e44f456e349e6f2. Chain 2 (Bitcoin): anchored in block 953860 (2026-06-15T23:55:46Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/02f2bfdd-aa39-4f51-a818-94b68b2039ee.json and https://artists.proofprofile.net/proofs/artist/02f2bfdd-aa39-4f51-a818-94b68b2039ee.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).