Riveros is a Spanish surname. List of people with the surname Riveros Bárbara Riveros Díaz (born 1987), Chilean triathlete Cristian Riveros (born 1982), Paraguayan footballer Galvarino Riveros Cárden
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 0xfc6142142dfc74fcb6ff2eb9e4567102452c6dc1b577a071c971f5e3e3535326. Chain 2 (Bitcoin): anchored in block 954705 (2026-06-21T13:42:37Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/f1bf092b-8c4c-4c93-9c06-3c244d7bc3f5.json and https://artists.proofprofile.net/proofs/artist/f1bf092b-8c4c-4c93-9c06-3c244d7bc3f5.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).