Rubio (Spanish for blond) may refer to: People Rubio (surname) Marco Rubio, 72nd U.S. Secretary of State (2025–present) Rubio (footballer, born 1976), Spanish football player and manager Rubio (footb
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 0x7fa6a3d36ee3f4b87a5f059c65497aec51c6fe636229811f5ead96a6ef294d3f. Chain 2 (Bitcoin): anchored in block 953997 (2026-06-16T20:07:57Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/1cc6a691-709f-4962-8d7d-cc13916a8262.json and https://artists.proofprofile.net/proofs/artist/1cc6a691-709f-4962-8d7d-cc13916a8262.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).