Eduard Held
type: MusicGroup
popularity: 7
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x2483d1df1bc642837b98b67996bb354c6ac2b5368c883682c4792ed2d97dd1d9
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954066
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954066
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/663cae8e-a148-44e1-bf09-cdbe00a3f10b.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/663cae8e-a148-44e1-bf09-cdbe00a3f10b.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/663cae8e-a148-44e1-bf09-cdbe00a3f10b
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-17T08:11:48Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x2483d1df1bc642837b98b67996bb354c6ac2b5368c883682c4792ed2d97dd1d9","name":"Eduard Held","registered_at":"2026-06-17T01:21:12Z","symbol":"NIM1236435","token_address":"0x539c1fbdd6aca34659763f805f953d9f48b0d21d","type":"artist","uuid":"663cae8e-a148-44e1-bf09-cdbe00a3f10b"}
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 0x2483d1df1bc642837b98b67996bb354c6ac2b5368c883682c4792ed2d97dd1d9. Chain 2 (Bitcoin): anchored in block 954066 (2026-06-17T08:11:48Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/663cae8e-a148-44e1-bf09-cdbe00a3f10b.json and https://artists.proofprofile.net/proofs/artist/663cae8e-a148-44e1-bf09-cdbe00a3f10b.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-17T08:11:48Z
  text: {"copyright_id":"0x2483d1df1bc642837b98b67996bb354c6ac2b5368c883682c4792ed2d97dd1d9","name":"Eduard Held","registered_at":"2026-06-17T01:21:12Z","symbol":"NIM1236435","token_address":"0x539c1fbdd6aca34659763f805f953d9f48b0d21d","type":"artist","uuid":"663cae8e-a148-44e1-bf09-cdbe00a3f10b"}