alt=see caption|thumb|upright=1.5|A section of the Brooklyn Botanic Garden that has pink Prunus 'Kanzan' cherry trees thumb|upright=1.5|The New Jersey Botanical Garden at Skylands Estate A garden is a
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 0x040d550b7e8bc810463d99255707078b010439c606444c88932f7be58619c41b. Chain 2 (Bitcoin): anchored in block 953997 (2026-06-16T20:07:57Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/24a0ee2c-536c-4797-9ace-6a0e939b78ca.json and https://artists.proofprofile.net/proofs/artist/24a0ee2c-536c-4797-9ace-6a0e939b78ca.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).