Ugwumba Cultural Masters
type: MusicGroup
genre: highlife
popularity: 5
followers: 99
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x9a77c8d42023d614939b28ef75ae4099d79bebe30a9c93e434b77fabfe6d9c1d
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954131
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954131
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/7c7842df-0e86-4f58-8d33-36436f21d2f0.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/7c7842df-0e86-4f58-8d33-36436f21d2f0.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/7c7842df-0e86-4f58-8d33-36436f21d2f0
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-17T19:19:19Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x9a77c8d42023d614939b28ef75ae4099d79bebe30a9c93e434b77fabfe6d9c1d","name":"Ugwumba Cultural Masters","registered_at":"2026-06-17T09:23:00Z","symbol":"NIM1351353","token_address":"0x474996650ce361dbb7fed9e084575f979a21b417","type":"artist","uuid":"7c7842df-0e86-4f58-8d33-36436f21d2f0"}
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 0x9a77c8d42023d614939b28ef75ae4099d79bebe30a9c93e434b77fabfe6d9c1d. Chain 2 (Bitcoin): anchored in block 954134 (2026-06-17T19:41:05Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/7c7842df-0e86-4f58-8d33-36436f21d2f0.json and https://artists.proofprofile.net/proofs/artist/7c7842df-0e86-4f58-8d33-36436f21d2f0.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-17T19:41:05Z
  text: {"copyright_id":"0x9a77c8d42023d614939b28ef75ae4099d79bebe30a9c93e434b77fabfe6d9c1d","name":"Ugwumba Cultural Masters","registered_at":"2026-06-17T09:23:00Z","symbol":"NIM1351353","token_address":"0x474996650ce361dbb7fed9e084575f979a21b417","type":"artist","uuid":"7c7842df-0e86-4f58-8d33-36436f21d2f0"}
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