Reina (the Spanish word for queen) or La Reina may refer to: Geography Reina, Badajoz, a municipality in the province of Badajoz, Extremadura, Spain Reina, Estonia, a village in Saaremaa Parish,
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 0x5e5eaab2f4ac940c80dd27baedb43d765904d76dca1516ddd270e56ec79a7eb7. 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/2e9a7bbf-2042-4a0e-9177-8561341be3fd.json and https://artists.proofprofile.net/proofs/artist/2e9a7bbf-2042-4a0e-9177-8561341be3fd.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).