June Lee is an adjunct professor in the UCSF School of Medicine, biotech executive, and medical doctor with expertise in pulmonary, critical care medicine and translational research. Background Jun
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 0x74c40d63ae0cc9a0719fd3debb74b98b645228e66e5bb2579ae05cdd7cfe4655. Chain 2 (Bitcoin): anchored in block 953975 (2026-06-16T16:53:41Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/2b977bce-277a-4395-b98c-de9a5ff8f617.json and https://artists.proofprofile.net/proofs/artist/2b977bce-277a-4395-b98c-de9a5ff8f617.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).