Don Keller
type: MusicGroup
genre: champeta
genre: rumba congolaise
popularity: 2
followers: 191
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xc9a59eb237a9f43248df8842346344cc0e0e68c869c9a801a94829bbd1f9f5eb
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954065
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954065
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/4dc5987c-e602-49d0-8b4b-170dabe11c93.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/4dc5987c-e602-49d0-8b4b-170dabe11c93.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/4dc5987c-e602-49d0-8b4b-170dabe11c93
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-17T08:10:43Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xc9a59eb237a9f43248df8842346344cc0e0e68c869c9a801a94829bbd1f9f5eb","name":"Don Keller","registered_at":"2026-06-16T16:46:28Z","symbol":"NIM1113618","token_address":"0xd8523625d0a39c5f25c9f293afde5475b440efb2","type":"artist","uuid":"4dc5987c-e602-49d0-8b4b-170dabe11c93"}
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 0xc9a59eb237a9f43248df8842346344cc0e0e68c869c9a801a94829bbd1f9f5eb. Chain 2 (Bitcoin): anchored in block 954065 (2026-06-17T08:10:43Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/4dc5987c-e602-49d0-8b4b-170dabe11c93.json and https://artists.proofprofile.net/proofs/artist/4dc5987c-e602-49d0-8b4b-170dabe11c93.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-17T08:10:43Z
  text: {"copyright_id":"0xc9a59eb237a9f43248df8842346344cc0e0e68c869c9a801a94829bbd1f9f5eb","name":"Don Keller","registered_at":"2026-06-16T16:46:28Z","symbol":"NIM1113618","token_address":"0xd8523625d0a39c5f25c9f293afde5475b440efb2","type":"artist","uuid":"4dc5987c-e602-49d0-8b4b-170dabe11c93"}
album: Fiesta
  type: MusicAlbum
  date published: 2019-01-25
album: Kwiti Ya Bolingo
  type: MusicAlbum
  date published: 2020-04-03
album: Kwiti ya Bolingo
  type: MusicAlbum
  date published: 2020-04-03
album: Superstar
  type: MusicAlbum
  date published: 2020-10-09
album: Lágrimas Negras
  type: MusicAlbum
  date published: 2021-05-24