Dorothy Berry (born 1942) is an Australian artist working in the genres of Outsider art, and Art Brut, based in Melbourne, Victoria, Australia. She is known primarily for her densely composed depictio
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 0xb25ed7f38e3b5871d3e58dff5bdf47b697886794536d675dca3e79cc19f77353. Chain 2 (Bitcoin): anchored in block 954346 (2026-06-19T03:51:26Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/929dd3d3-68aa-4b99-9839-a50f895fee1b.json and https://artists.proofprofile.net/proofs/artist/929dd3d3-68aa-4b99-9839-a50f895fee1b.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).