Kabi or KABI may refer to: Places Kabi Longstok, town in North Sikkim district, Sikkim, India Kabi, Sikkim, village in North Sikkim district, Sikkim, India Kabi River (Kafu River), river in Uganda P
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 0x128da5a6b5e3ee8bffad3423071d1fa45cf9968db1cd698a5cd7e3c9afef3fd3. Chain 2 (Bitcoin): anchored in block 954047 (2026-06-17T04:56:08Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/41f18608-0be2-41c7-9c46-2ce7028fc4cb.json and https://artists.proofprofile.net/proofs/artist/41f18608-0be2-41c7-9c46-2ce7028fc4cb.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).