Rd is an abbreviation for road. RD or Rd may also refer to: Arts, entertainment, and media Reader's Digest, a United States general-interest magazine Real Drive, an anime by Production I.G RD (gr
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 0xcb4e09a27b2f63ee3d47eca03a6181ded61e7f090ccf086915ac235bcfed9fc4. 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/7747e090-ab85-4956-bb3e-d06f6934bc14.json and https://artists.proofprofile.net/proofs/artist/7747e090-ab85-4956-bb3e-d06f6934bc14.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).