Nadine Secunde (born 21 December 1953) is an American operatic soprano. She studied and performed in Germany, singing at the Bayreuth Festival the leading role of Elsa in Lohengrin and Sieglinde in Di
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 0x088a1b97a42f4a3ae443972565d18ff60fe85d8b73d6ec6c372fdca67949a740. Chain 2 (Bitcoin): anchored in block 953947 (2026-06-16T13:14:26Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/222014e6-5441-4d78-a6e2-58c32dd4b3db.json and https://artists.proofprofile.net/proofs/artist/222014e6-5441-4d78-a6e2-58c32dd4b3db.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).