HRP may refer to: Political parties Happiness Realization Party, a Japanese political party Haryana Republican Party, a political party in Haryana, India Hawaii Republican Party, an American polit
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 0x3c5d44054f9552a5a76ea9ceda20b9efc74946d9beafbb882b436d3c867ab08e. Chain 2 (Bitcoin): anchored in block 953996 (2026-06-16T20:04:35Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/305cd0e7-7015-4e99-b9f1-e1e98f2833fc.json and https://artists.proofprofile.net/proofs/artist/305cd0e7-7015-4e99-b9f1-e1e98f2833fc.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).