Yvonne Gage (born December 20, 1959) is an American singer from Chicago, Illinois. Active since the late 1970s, she has done background vocals for artists prior to and after her own solo success. As
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 0xab9692a1578da3cdea48e83c98f2ee1bb9d29937fd2f9b9b497edad7b558fe1e. Chain 2 (Bitcoin): anchored in block 953770 (2026-06-15T09:50:11Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/a4fc2597-58f3-456b-aaef-b7f85bcf7f11.json and https://artists.proofprofile.net/proofs/artist/a4fc2597-58f3-456b-aaef-b7f85bcf7f11.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).