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 0x9cb4164f3276c2f4d861c8f2dea89eea47f71b9a62d2ce15d5481edff6ed0434. Chain 2 (Bitcoin): anchored in block 953827 (2026-06-15T19:59:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/d8db3986-97ce-42e6-b4ae-1c405f72d834.json and https://artists.proofprofile.net/proofs/artist/d8db3986-97ce-42e6-b4ae-1c405f72d834.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).