Nadine Secunde
type: MusicGroup
genre: opera
description: 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
popularity: 2
followers: 23
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x088a1b97a42f4a3ae443972565d18ff60fe85d8b73d6ec6c372fdca67949a740
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953947
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953947
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/222014e6-5441-4d78-a6e2-58c32dd4b3db.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/222014e6-5441-4d78-a6e2-58c32dd4b3db.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/222014e6-5441-4d78-a6e2-58c32dd4b3db
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-16T13:14:26Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x088a1b97a42f4a3ae443972565d18ff60fe85d8b73d6ec6c372fdca67949a740","name":"Nadine Secunde","registered_at":"2026-06-16T01:31:35Z","symbol":"NIM0895236","token_address":"0x6574d71732889bc953b1a17fed9368adea18c6b3","type":"artist","uuid":"222014e6-5441-4d78-a6e2-58c32dd4b3db"}
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 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
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: 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).
  date published: 2026-06-16T13:14:26Z
  text: {"copyright_id":"0x088a1b97a42f4a3ae443972565d18ff60fe85d8b73d6ec6c372fdca67949a740","name":"Nadine Secunde","registered_at":"2026-06-16T01:31:35Z","symbol":"NIM0895236","token_address":"0x6574d71732889bc953b1a17fed9368adea18c6b3","type":"artist","uuid":"222014e6-5441-4d78-a6e2-58c32dd4b3db"}