Babi or BABI may refer to: Babi Yar (book), a 1966 book by Anatoly Kuznetsov Babi (mythology), a baboon god in Egyptian mythology Babi Yar (poem), poems about Babi Yar Babi (title), various India
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 0x390247805c985b7c7305f175d654bd3cff6437e44087d1b948174e2af9f1cdec. Chain 2 (Bitcoin): anchored in block 954342 (2026-06-19T03:22:39Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/830c3d4b-3929-4aca-8cca-9bde73d860a6.json and https://artists.proofprofile.net/proofs/artist/830c3d4b-3929-4aca-8cca-9bde73d860a6.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).