April Henry (born April 14, 1959) is an American New York Times bestselling author of mysteries, thrillers, and young adult novels. Early life Born in Portland, Oregon, April 14, 1959, Henry grew up
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 0x939b0ca2da69f6b225300990861983884bf7764fc6f22f24befc0509bb33d13e. Chain 2 (Bitcoin): anchored in block 954638 (2026-06-21T03:45:44Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/d3b54f53-0237-4f5b-9bc7-3b24d2734783.json and https://artists.proofprofile.net/proofs/artist/d3b54f53-0237-4f5b-9bc7-3b24d2734783.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).