Black Harmony
type: MusicGroup
description: Black Harmony is a Lugbara music duo based in Arua (Northwestern Uganda).WEMA Awards Honour West Nile Artistes It comprises Emmanuel Ledra who sings and raps while Robert Adima provides the "reggae fl
popularity: 5
followers: 1
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x918064e4cc7e74abefdc425bc5ebb9a0f54add47f5fd925327308e2b2b07ba66
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954693
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954693
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/ea2237de-dc7d-48f8-93c6-09a90825c0ca.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/ea2237de-dc7d-48f8-93c6-09a90825c0ca.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/ea2237de-dc7d-48f8-93c6-09a90825c0ca
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-21T11:50:32Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x918064e4cc7e74abefdc425bc5ebb9a0f54add47f5fd925327308e2b2b07ba66","name":"Black Harmony","registered_at":"2026-06-21T10:29:59Z","symbol":"NIM1895850","token_address":"0x79d0d836a8adff7c35057adb2f23458fb0283b56","type":"artist","uuid":"ea2237de-dc7d-48f8-93c6-09a90825c0ca"}
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 0x918064e4cc7e74abefdc425bc5ebb9a0f54add47f5fd925327308e2b2b07ba66. Chain 2 (Bitcoin): anchored in block 954693 (2026-06-21T11:50:32Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/ea2237de-dc7d-48f8-93c6-09a90825c0ca.json and https://artists.proofprofile.net/proofs/artist/ea2237de-dc7d-48f8-93c6-09a90825c0ca.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-21T11:50:32Z
  text: {"copyright_id":"0x918064e4cc7e74abefdc425bc5ebb9a0f54add47f5fd925327308e2b2b07ba66","name":"Black Harmony","registered_at":"2026-06-21T10:29:59Z","symbol":"NIM1895850","token_address":"0x79d0d836a8adff7c35057adb2f23458fb0283b56","type":"artist","uuid":"ea2237de-dc7d-48f8-93c6-09a90825c0ca"}