Harper & Green
type: MusicGroup
genre: progressive house
genre: progressive trance
genre: trance
popularity: 2
followers: 153
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x7bd000d1530fe729a063edfb919d1221a173eb0435857794f8e5c9758176bbae
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/7b491387-1a53-4b7f-b3db-8e43aa6b3e96.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/7b491387-1a53-4b7f-b3db-8e43aa6b3e96.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/7b491387-1a53-4b7f-b3db-8e43aa6b3e96
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-17T19:19:19Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x7bd000d1530fe729a063edfb919d1221a173eb0435857794f8e5c9758176bbae","name":"Harper & Green","registered_at":"2026-06-17T08:37:18Z","symbol":"NIM1340462","token_address":"0x911ffe3ec54471b5ce84c9891a8266a59d518fca","type":"artist","uuid":"7b491387-1a53-4b7f-b3db-8e43aa6b3e96"}
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 0x7bd000d1530fe729a063edfb919d1221a173eb0435857794f8e5c9758176bbae. Chain 2 (Bitcoin): anchored in block 954131 (2026-06-17T19:19:19Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/7b491387-1a53-4b7f-b3db-8e43aa6b3e96.json and https://artists.proofprofile.net/proofs/artist/7b491387-1a53-4b7f-b3db-8e43aa6b3e96.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-17T19:19:19Z
  text: {"copyright_id":"0x7bd000d1530fe729a063edfb919d1221a173eb0435857794f8e5c9758176bbae","name":"Harper & Green","registered_at":"2026-06-17T08:37:18Z","symbol":"NIM1340462","token_address":"0x911ffe3ec54471b5ce84c9891a8266a59d518fca","type":"artist","uuid":"7b491387-1a53-4b7f-b3db-8e43aa6b3e96"}
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