Kia Corporation () is a South Korean multinational automobile manufacturer headquartered in Seoul, South Korea. It is South Korea's second largest automobile manufacturer, after its parent company, Hy
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 0x259821c920cc7034e03a4f440d59f44448f9e232ed80b1a49b96b446f88a2ecb. Chain 2 (Bitcoin): anchored in block 954500 (2026-06-20T04:47:29Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/9ab4a1c7-ae83-4d0f-b412-5f20189943bc.json and https://artists.proofprofile.net/proofs/artist/9ab4a1c7-ae83-4d0f-b412-5f20189943bc.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).