Keita or Keïta may refer to: People Keita (given name) Keita (surname) History Keita dynasty, a ruling lineage of Mali Geography Keita Department, a region of Niger Keita, Niger, a town in
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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xead12f16f692d5e8dc10979612b8acbe5b8e16dbf0d0d3237ddb1fb006340059. Chain 2 (Bitcoin): anchored in block 954659 (2026-06-21T06:14:42Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/dc3e94e4-7029-43de-972f-4ec8e79bfde7.json and https://artists.proofprofile.net/proofs/artist/dc3e94e4-7029-43de-972f-4ec8e79bfde7.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).