Dan Heath is an American bestselling author, speaker and fellow at Duke University's CASE center. Together with his brother, Chip Heath, has co-authored four books: Made to Stick: Why Some Ideas Survi
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 0x23c53ed7ddea85d2cbbbb10502da88d6f263b2f733d4516da85a94878aed8cf5. Chain 2 (Bitcoin): anchored in block 953827 (2026-06-15T19:59:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/dce5b071-3099-4fcb-a568-6bb952d46ba5.json and https://artists.proofprofile.net/proofs/artist/dce5b071-3099-4fcb-a568-6bb952d46ba5.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).