The International Harp Ensemble
type: MusicGroup
popularity: 3
followers: 328
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x9fad0709fe05a279b2ab1123c86bb0bf6941d83e0274b20f76e9af5c66422214
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954667
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954667
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/bcab5a4f-87e1-4dd4-a066-9620a01916f2.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/bcab5a4f-87e1-4dd4-a066-9620a01916f2.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/bcab5a4f-87e1-4dd4-a066-9620a01916f2
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-21T07:29:20Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x9fad0709fe05a279b2ab1123c86bb0bf6941d83e0274b20f76e9af5c66422214","name":"The International Harp Ensemble","registered_at":"2026-06-20T17:55:24Z","symbol":"NIM1672551","token_address":"0xba9760bf9e661ddd6472c7ddfb3771a4d816874d","type":"artist","uuid":"bcab5a4f-87e1-4dd4-a066-9620a01916f2"}
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 0x9fad0709fe05a279b2ab1123c86bb0bf6941d83e0274b20f76e9af5c66422214. Chain 2 (Bitcoin): anchored in block 954667 (2026-06-21T07:29:20Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/bcab5a4f-87e1-4dd4-a066-9620a01916f2.json and https://artists.proofprofile.net/proofs/artist/bcab5a4f-87e1-4dd4-a066-9620a01916f2.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-21T07:29:20Z
  text: {"copyright_id":"0x9fad0709fe05a279b2ab1123c86bb0bf6941d83e0274b20f76e9af5c66422214","name":"The International Harp Ensemble","registered_at":"2026-06-20T17:55:24Z","symbol":"NIM1672551","token_address":"0xba9760bf9e661ddd6472c7ddfb3771a4d816874d","type":"artist","uuid":"bcab5a4f-87e1-4dd4-a066-9620a01916f2"}
album: THE MAGIC OF A THOUSAND STRINGS
  type: MusicAlbum
  date published: 2012-10-15