Hickory is a common name for trees composing the genus Carya, which includes 19 species accepted by Plants of the World Online. Seven species are native to Southeast Asia in China, Indochina, and nor
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 0x26f1c72c78770629d85189c413d662286e7f0d42f6ad3320744e067f4a78b848. Chain 2 (Bitcoin): anchored in block 954587 (2026-06-20T19:10:41Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/bb6b8893-691a-4684-9383-31c8dd08fcf8.json and https://artists.proofprofile.net/proofs/artist/bb6b8893-691a-4684-9383-31c8dd08fcf8.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).