Norman Cordon
type: MusicGroup
genre: opera
popularity: 2
followers: 9
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x328009edd91f3e4873d3bf4f190a61baed823f526914a0e052831087493d2d5e
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954058
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954058
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/457d6ebf-94c9-4db7-8b40-59f3e2aa45ce.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/457d6ebf-94c9-4db7-8b40-59f3e2aa45ce.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/457d6ebf-94c9-4db7-8b40-59f3e2aa45ce
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-17T06:34:31Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x328009edd91f3e4873d3bf4f190a61baed823f526914a0e052831087493d2d5e","name":"Norman Cordon","registered_at":"2026-06-16T13:46:44Z","symbol":"NIM1070734","token_address":"0x87c8d87e98f0bbc94b72330bda834e3243ce541b","type":"artist","uuid":"457d6ebf-94c9-4db7-8b40-59f3e2aa45ce"}
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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x328009edd91f3e4873d3bf4f190a61baed823f526914a0e052831087493d2d5e. Chain 2 (Bitcoin): anchored in block 954058 (2026-06-17T06:34:31Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/457d6ebf-94c9-4db7-8b40-59f3e2aa45ce.json and https://artists.proofprofile.net/proofs/artist/457d6ebf-94c9-4db7-8b40-59f3e2aa45ce.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-17T06:34:31Z
  text: {"copyright_id":"0x328009edd91f3e4873d3bf4f190a61baed823f526914a0e052831087493d2d5e","name":"Norman Cordon","registered_at":"2026-06-16T13:46:44Z","symbol":"NIM1070734","token_address":"0x87c8d87e98f0bbc94b72330bda834e3243ce541b","type":"artist","uuid":"457d6ebf-94c9-4db7-8b40-59f3e2aa45ce"}
album: Norma with Zinka Milanov live MET 1944
  type: MusicAlbum
  date published: 2022-04-01
album: Aida with Giovanni Martinelli live
  type: MusicAlbum
  date published: 2022-04-01