FRP may refer to: Organizations FairPoint Communications (NASDAQ), a US company Free Russian Press (1853–1867), in UK Family resource program, Canada FRP Advisory, UK company Politics Progress
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 0xb92ee2063b8a607740534ba01cf968791abcc09319ec17030f5f83f77b77956b. Chain 2 (Bitcoin): anchored in block 954066 (2026-06-17T08:11:48Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/66a3f544-5cfe-4cbc-b50d-7ed9a19c99fb.json and https://artists.proofprofile.net/proofs/artist/66a3f544-5cfe-4cbc-b50d-7ed9a19c99fb.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).