Pierce Biglefthand
type: MusicGroup
popularity: 8
followers: 59
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x55b3fab8884247d28750546fab1bff94d39af568045318591b6c78e39aef5535
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/e7ef7247-a089-44fe-abb1-7e9d20e7e8e1.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/e7ef7247-a089-44fe-abb1-7e9d20e7e8e1.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/e7ef7247-a089-44fe-abb1-7e9d20e7e8e1
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-21T11:50:32Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x55b3fab8884247d28750546fab1bff94d39af568045318591b6c78e39aef5535","name":"Pierce Biglefthand","registered_at":"2026-06-21T09:14:17Z","symbol":"NIM1885680","token_address":"0x6ad13583ba4c5f2ba4c616ed0fdb19b23171f876","type":"artist","uuid":"e7ef7247-a089-44fe-abb1-7e9d20e7e8e1"}
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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x55b3fab8884247d28750546fab1bff94d39af568045318591b6c78e39aef5535. 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/e7ef7247-a089-44fe-abb1-7e9d20e7e8e1.json and https://artists.proofprofile.net/proofs/artist/e7ef7247-a089-44fe-abb1-7e9d20e7e8e1.ots, the client at https://opentimestamps.org runs `ots verify -f record.json proof.ots`.
  date published: 2026-06-21T11:50:32Z
  text: {"copyright_id":"0x55b3fab8884247d28750546fab1bff94d39af568045318591b6c78e39aef5535","name":"Pierce Biglefthand","registered_at":"2026-06-21T09:14:17Z","symbol":"NIM1885680","token_address":"0x6ad13583ba4c5f2ba4c616ed0fdb19b23171f876","type":"artist","uuid":"e7ef7247-a089-44fe-abb1-7e9d20e7e8e1"}