Sonia Lee (born April 12, 1960) is a Korean-born entrepreneur best known as the co-founder and president of Fullpower Technologies.About Fullpower Technologies Sonia Lee also co-founded LightSurf and
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 0x58160e256f2f07251bac9d2028ecb55276dbd052af9df7ae306d3ae22f3dae40. Chain 2 (Bitcoin): anchored in block 954667 (2026-06-21T07:29:20Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/d56de56c-42ea-48e2-9c3c-cc06c002b811.json and https://artists.proofprofile.net/proofs/artist/d56de56c-42ea-48e2-9c3c-cc06c002b811.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
German Music for Viola da Gamba and Harpsichord