Dun Dun
type: MusicGroup
popularity: 11
followers: 53
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x691506c406e18a87d2240e206b01eebe01d72d5ba0996a694f81660c4ba293ac
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953704
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953704
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/7911059a-aede-4e19-b831-805be238e65e.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/7911059a-aede-4e19-b831-805be238e65e.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/7911059a-aede-4e19-b831-805be238e65e
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-14T22:58:38Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x691506c406e18a87d2240e206b01eebe01d72d5ba0996a694f81660c4ba293ac","name":"Dun Dun","registered_at":"2026-06-14T17:15:07Z","symbol":"NIM0521429","token_address":"0x324ac50f5eb84167f54889704678cb01b7737892","type":"artist","uuid":"7911059a-aede-4e19-b831-805be238e65e"}
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 0x691506c406e18a87d2240e206b01eebe01d72d5ba0996a694f81660c4ba293ac. Chain 2 (Bitcoin): anchored in block 953704 (2026-06-14T22:58:38Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/7911059a-aede-4e19-b831-805be238e65e.json and https://artists.proofprofile.net/proofs/artist/7911059a-aede-4e19-b831-805be238e65e.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-14T22:58:38Z
  text: {"copyright_id":"0x691506c406e18a87d2240e206b01eebe01d72d5ba0996a694f81660c4ba293ac","name":"Dun Dun","registered_at":"2026-06-14T17:15:07Z","symbol":"NIM0521429","token_address":"0x324ac50f5eb84167f54889704678cb01b7737892","type":"artist","uuid":"7911059a-aede-4e19-b831-805be238e65e"}
album: Scorp
  type: MusicAlbum
  date published: 2022-10-01
album: Enigmatic
  type: MusicAlbum
  date published: 2024-05-14