Karry New Energy Holdings Co., Ltd. (traded as Karry) is a Chinese car manufacturer founded by Chery Automobile in 2009 specializing in the production of light commercial vehicles based in Anhui, Wuhu
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 0xba3352a8d0f5e2ced199690d424fd18fe93f4568d3b389ccd34efc24f56dcd62. Chain 2 (Bitcoin): anchored in block 954516 (2026-06-20T07:04:44Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/a03c9391-ea10-4fcc-a7a1-1a6c5d504f5b.json and https://artists.proofprofile.net/proofs/artist/a03c9391-ea10-4fcc-a7a1-1a6c5d504f5b.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).