thumb|Danielle de Picciotto Danielle de Picciotto (born February 19, 1965) is an American-born artist, musician and filmmaker.Danielle de Picciotto: 'Detroit is the new Berlin' Deutsche Welle -- Novem
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 0x6c45312de47aea822e2b90fbc9aab5ff931602fd89304dbd5a3440d6febe8b7d. Chain 2 (Bitcoin): anchored in block 954615 (2026-06-20T22:44:50Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/c4ddb9d2-e891-48be-9335-2c3e5168629e.json and https://artists.proofprofile.net/proofs/artist/c4ddb9d2-e891-48be-9335-2c3e5168629e.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).