300px|thumb|Halley Park in Bentleigh, Victoria, Australia thumb|right|Düden Park sign in Antalya, Turkey A park is an area of natural, semi-natural or planted space set aside for human enjoyment and
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 0x8da4b0c35cf69e45e802917a4cb03226da9830cd38f22be23e36d9e6cf1b0f02. Chain 2 (Bitcoin): anchored in block 953588 (2026-06-14T04:52:46Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/007b9240-9619-4b17-bc35-44202d6b437a.json and https://artists.proofprofile.net/proofs/artist/007b9240-9619-4b17-bc35-44202d6b437a.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).