RR, Rr or rr may refer to: Arts and entertainment RR (film), a 2007 experimental film by James Benning Red Ribbon Army, a fictional army in the Dragon Ball series Ruff Ryders Entertainment, a reco
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 0xcf41d56a1d3a98f4a5b4960517883e1bce7aadaa10973a8c81a02544f8a0afc1. Chain 2 (Bitcoin): anchored in block 954618 (2026-06-20T23:05:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/c9cfb931-2657-4749-a640-f8544df59571.json and https://artists.proofprofile.net/proofs/artist/c9cfb931-2657-4749-a640-f8544df59571.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).