Bongo District is one of the fifteen districts in Upper East Region, Ghana. Originally created as an ordinary district assembly in 1988; which was established by Legislative Instrument (L.I.) 1446. Th
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 0x764be5d799b6e77336350e8d98ff8e19bb660ded7e2c97b6177e182b03434f02. Chain 2 (Bitcoin): anchored in block 953903 (2026-06-16T07:05:05Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/1360b171-cb40-4549-a71a-4b7cc138ad2b.json and https://artists.proofprofile.net/proofs/artist/1360b171-cb40-4549-a71a-4b7cc138ad2b.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).