The badik or badek (Makassarese: ᨅᨉᨗ badiʼ, Buginese: ᨀᨓᨒᨗ kawali) is a knife or dagger developed by the Bugis and Makassar people of southern Sulawesi, Indonesia. Description The badik consists of
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 0x7b709f67ded6f0f496957f6d483b3c4ab72ca1631b7f1ef280b97d07a36bab8d. Chain 2 (Bitcoin): anchored in block 954631 (2026-06-21T02:46:24Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/ce99e93d-9970-4169-951e-c94e8fcd268d.json and https://artists.proofprofile.net/proofs/artist/ce99e93d-9970-4169-951e-c94e8fcd268d.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).