Jo Francis
type: MusicGroup
genre: tech house
popularity: 20
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x94cf70405d92577ebd747f8a58aeeb4925c4c0ce2ce1e46ce61a167c593d2ddf
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953706
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953706
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/7c1ce81e-be7e-44a4-abb0-2e28dbe3f4be.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/7c1ce81e-be7e-44a4-abb0-2e28dbe3f4be.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/7c1ce81e-be7e-44a4-abb0-2e28dbe3f4be
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-14T23:14:49Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x94cf70405d92577ebd747f8a58aeeb4925c4c0ce2ce1e46ce61a167c593d2ddf","name":"Jo Francis","registered_at":"2026-06-14T17:32:25Z","symbol":"NIM0525555","token_address":"0xa4a99d72b0e35f39b41b341ab2ab6bf660867bdd","type":"artist","uuid":"7c1ce81e-be7e-44a4-abb0-2e28dbe3f4be"}
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 0x94cf70405d92577ebd747f8a58aeeb4925c4c0ce2ce1e46ce61a167c593d2ddf. Chain 2 (Bitcoin): anchored in block 953706 (2026-06-14T23:14:49Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/7c1ce81e-be7e-44a4-abb0-2e28dbe3f4be.json and https://artists.proofprofile.net/proofs/artist/7c1ce81e-be7e-44a4-abb0-2e28dbe3f4be.ots, the client at https://opentimestamps.org runs `ots verify -f record.json proof.ots`.
  date published: 2026-06-14T23:14:49Z
  text: {"copyright_id":"0x94cf70405d92577ebd747f8a58aeeb4925c4c0ce2ce1e46ce61a167c593d2ddf","name":"Jo Francis","registered_at":"2026-06-14T17:32:25Z","symbol":"NIM0525555","token_address":"0xa4a99d72b0e35f39b41b341ab2ab6bf660867bdd","type":"artist","uuid":"7c1ce81e-be7e-44a4-abb0-2e28dbe3f4be"}
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