Bubi may refer to: Bubi people, an ethnic group in Central Africa Bubi language, a Bantu language spoken in Bioko Island, Equatorial Guinea Bubi District, Zimbabwe Bubi River, a tributary of the
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 0xa829b9139f9d83565e1cb0ae1f151ed1beb61b98032ec0be36071651a4d934e5. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/ba77bf0c-5650-4f23-bdf1-bf1acff4b7b1.json and https://artists.proofprofile.net/proofs/artist/ba77bf0c-5650-4f23-bdf1-bf1acff4b7b1.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).