Darrell Calhoun
type: MusicGroup
popularity: 3
followers: 3
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x51fc48132bd5dff424b9809bae316ee15ae8c16a927120a4759ec89e04f9e769
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953924
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953924
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/1d3518fb-bf6f-4405-b650-1aeaa5577e03.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/1d3518fb-bf6f-4405-b650-1aeaa5577e03.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/1d3518fb-bf6f-4405-b650-1aeaa5577e03
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-16T09:52:28Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x51fc48132bd5dff424b9809bae316ee15ae8c16a927120a4759ec89e04f9e769","name":"Darrell Calhoun","registered_at":"2026-06-15T23:43:27Z","symbol":"NIM0869420","token_address":"0x892fcb8c709c0c76e5bc2afb3193f0efd596c113","type":"artist","uuid":"1d3518fb-bf6f-4405-b650-1aeaa5577e03"}
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 0x51fc48132bd5dff424b9809bae316ee15ae8c16a927120a4759ec89e04f9e769. Chain 2 (Bitcoin): anchored in block 953997 (2026-06-16T20:07:57Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/1d3518fb-bf6f-4405-b650-1aeaa5577e03.json and https://artists.proofprofile.net/proofs/artist/1d3518fb-bf6f-4405-b650-1aeaa5577e03.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-16T20:07:57Z
  text: {"copyright_id":"0x51fc48132bd5dff424b9809bae316ee15ae8c16a927120a4759ec89e04f9e769","name":"Darrell Calhoun","registered_at":"2026-06-15T23:43:27Z","symbol":"NIM0869420","token_address":"0x892fcb8c709c0c76e5bc2afb3193f0efd596c113","type":"artist","uuid":"1d3518fb-bf6f-4405-b650-1aeaa5577e03"}
album: Better Off
  type: MusicAlbum
  date published: 2025-03-03
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  type: MusicAlbum
  date published: 2025-03-03
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  type: MusicAlbum
  date published: 2025-03-04
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  type: MusicAlbum
  date published: 2025-03-05
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  type: MusicAlbum
  date published: 2025-03-07
album: Sweet Horizons
  type: MusicAlbum
  date published: 2025-03-10
album: Round After Round
  type: MusicAlbum
  date published: 2025-03-10
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  type: MusicAlbum
  date published: 2025-03-10
album: City Girls
  type: MusicAlbum
  date published: 2025-03-12
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  type: MusicAlbum
  date published: 2025-03-12