Ervin Nyiregyhazi
type: MusicGroup
genre: classical piano
popularity: 2
followers: 430
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x1aee331c9b7c2870df25cc5d6df8a8a1cc6f1a666b315e1fa2bed32f725202a1
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953877
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953877
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/0766a76a-b01e-481d-95be-e0700650199f.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/0766a76a-b01e-481d-95be-e0700650199f.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/0766a76a-b01e-481d-95be-e0700650199f
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-16T02:39:16Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x1aee331c9b7c2870df25cc5d6df8a8a1cc6f1a666b315e1fa2bed32f725202a1","name":"Ervin Nyiregyhazi","registered_at":"2026-06-15T15:59:48Z","symbol":"NIM0758803","token_address":"0xcb69d80872affda029b1b32a2fc09f3d79da9a4a","type":"artist","uuid":"0766a76a-b01e-481d-95be-e0700650199f"}
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 0x1aee331c9b7c2870df25cc5d6df8a8a1cc6f1a666b315e1fa2bed32f725202a1. Chain 2 (Bitcoin): anchored in block 953877 (2026-06-16T02:39:16Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/0766a76a-b01e-481d-95be-e0700650199f.json and https://artists.proofprofile.net/proofs/artist/0766a76a-b01e-481d-95be-e0700650199f.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-16T02:39:16Z
  text: {"copyright_id":"0x1aee331c9b7c2870df25cc5d6df8a8a1cc6f1a666b315e1fa2bed32f725202a1","name":"Ervin Nyiregyhazi","registered_at":"2026-06-15T15:59:48Z","symbol":"NIM0758803","token_address":"0xcb69d80872affda029b1b32a2fc09f3d79da9a4a","type":"artist","uuid":"0766a76a-b01e-481d-95be-e0700650199f"}
album: Ervin Nyiregyhazi in Performance (1972-1982)
  type: MusicAlbum
  date published: 2011-04-01