Black Nile
type: MusicGroup
genre: nu jazz
popularity: 5
followers: 1582
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xc1610eea65f1f39c243f314d5ef8e6b3ad40cec21830b7b3766a1c81a0ed408c
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954623
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954623
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/cbab3e6b-5a40-4fb4-a550-c9eccf1ae941.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/cbab3e6b-5a40-4fb4-a550-c9eccf1ae941.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/cbab3e6b-5a40-4fb4-a550-c9eccf1ae941
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-20T23:40:06Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xc1610eea65f1f39c243f314d5ef8e6b3ad40cec21830b7b3766a1c81a0ed408c","name":"Black Nile","registered_at":"2026-06-20T23:12:05Z","symbol":"NIM1743371","token_address":"0xf52c6eb2ec567f6bf012a0b457282ba8adfdb131","type":"artist","uuid":"cbab3e6b-5a40-4fb4-a550-c9eccf1ae941"}
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 0xc1610eea65f1f39c243f314d5ef8e6b3ad40cec21830b7b3766a1c81a0ed408c. Chain 2 (Bitcoin): anchored in block 954623 (2026-06-20T23:40:06Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/cbab3e6b-5a40-4fb4-a550-c9eccf1ae941.json and https://artists.proofprofile.net/proofs/artist/cbab3e6b-5a40-4fb4-a550-c9eccf1ae941.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-20T23:40:06Z
  text: {"copyright_id":"0xc1610eea65f1f39c243f314d5ef8e6b3ad40cec21830b7b3766a1c81a0ed408c","name":"Black Nile","registered_at":"2026-06-20T23:12:05Z","symbol":"NIM1743371","token_address":"0xf52c6eb2ec567f6bf012a0b457282ba8adfdb131","type":"artist","uuid":"cbab3e6b-5a40-4fb4-a550-c9eccf1ae941"}
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