Left Field
type: MusicGroup
genre: big beat
popularity: 2
followers: 389
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x52468ee6e6355539119cfd2bea00126ad6c8abb0e1878058c462566ae7903d90
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953918
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953918
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/1acb7de4-51f1-4d70-880f-d65b8d2c87b3.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/1acb7de4-51f1-4d70-880f-d65b8d2c87b3.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/1acb7de4-51f1-4d70-880f-d65b8d2c87b3
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-16T08:55:04Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x52468ee6e6355539119cfd2bea00126ad6c8abb0e1878058c462566ae7903d90","name":"Left Field","registered_at":"2026-06-15T22:51:19Z","symbol":"NIM0856962","token_address":"0x93d6a236f5ad0beab8c30f16d666961ea6b5d2a5","type":"artist","uuid":"1acb7de4-51f1-4d70-880f-d65b8d2c87b3"}
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 0x52468ee6e6355539119cfd2bea00126ad6c8abb0e1878058c462566ae7903d90. Chain 2 (Bitcoin): anchored in block 953949 (2026-06-16T13:28:01Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/1acb7de4-51f1-4d70-880f-d65b8d2c87b3.json and https://artists.proofprofile.net/proofs/artist/1acb7de4-51f1-4d70-880f-d65b8d2c87b3.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-16T13:28:01Z
  text: {"copyright_id":"0x52468ee6e6355539119cfd2bea00126ad6c8abb0e1878058c462566ae7903d90","name":"Left Field","registered_at":"2026-06-15T22:51:19Z","symbol":"NIM0856962","token_address":"0x93d6a236f5ad0beab8c30f16d666961ea6b5d2a5","type":"artist","uuid":"1acb7de4-51f1-4d70-880f-d65b8d2c87b3"}
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