Addi or variation, may refer to: Places Addi, Punjab, India; a village People Surname Goggo Addi (c. 1911–1999), Cameroonian storyteller Nour Imane Addi (born 1997), Moroccan soccer player Given
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 0xf7edcc84a9bdb071bc892a2755507ae7b91df00baf65fb11a7b5de8cc34da5fb. 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/5ae4f520-7523-4ed5-8612-984b24b0a911.json and https://artists.proofprofile.net/proofs/artist/5ae4f520-7523-4ed5-8612-984b24b0a911.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).