Edem, occasionally referred to by the misnomer "Edem Ani" to distinguish it from Edem Nru and Edem Iheakpu Awka, is an ancient traditional state in Nsukka Local Government Area of Enugu State, Nigeria
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 0x9d98742f2e99b17f11f0fe1ab05f122013f442ecd9befd15a46f7acfa8fed060. Chain 2 (Bitcoin): anchored in block 954549 (2026-06-20T10:56:20Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/a91e9267-56bd-4292-b7e7-eca690a572b2.json and https://artists.proofprofile.net/proofs/artist/a91e9267-56bd-4292-b7e7-eca690a572b2.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).