Rai or RAI may refer to: Title of royalty and nobility Rai (title), meaning 'king', equivalent to Rao or Roy, a princely title used by many Hindu rulers in India Rai Bahadur, a noble title given du
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 0x2c2b0a8e5641fbfd47e499e111a96f10a4132bfa1b1dcd557845432a68747bf9. 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/57b33cf6-66b9-4532-bc7e-0fa2980be3fc.json and https://artists.proofprofile.net/proofs/artist/57b33cf6-66b9-4532-bc7e-0fa2980be3fc.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).