Amabi was a traditional principality in West Timor in the currently East Nusa Tenggara province of Indonesia. From at least the 17th century to 1917, Amabi played a role in the rivalries between the P
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 0xc66e4cefde1ed1b0fb7d4f90d89f00850d9ccde9c3ab154042b20fc889ff09c0. Chain 2 (Bitcoin): anchored in block 954065 (2026-06-17T08:10:43Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/55aedba0-9344-478a-ac42-b83435f10a5a.json and https://artists.proofprofile.net/proofs/artist/55aedba0-9344-478a-ac42-b83435f10a5a.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).