Johnny Matt
type: MusicGroup
popularity: 2
followers: 180
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xaa931e41f234a32cc2779cd410069dea1ed166bdfb0981c0e34863cfaa4cc613
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/e0f7ca00-2b92-4ee2-80f5-d2afc434d137.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/e0f7ca00-2b92-4ee2-80f5-d2afc434d137.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/e0f7ca00-2b92-4ee2-80f5-d2afc434d137
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-21T07:29:20Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xaa931e41f234a32cc2779cd410069dea1ed166bdfb0981c0e34863cfaa4cc613","name":"Johnny Matt","registered_at":"2026-06-21T06:25:01Z","symbol":"NIM1847737","token_address":"0x8209636bf86ad36cb29f6b6e79989548e4cb5474","type":"artist","uuid":"e0f7ca00-2b92-4ee2-80f5-d2afc434d137"}
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 0xaa931e41f234a32cc2779cd410069dea1ed166bdfb0981c0e34863cfaa4cc613. 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/e0f7ca00-2b92-4ee2-80f5-d2afc434d137.json and https://artists.proofprofile.net/proofs/artist/e0f7ca00-2b92-4ee2-80f5-d2afc434d137.ots, the client at https://opentimestamps.org runs `ots verify -f record.json proof.ots`.
  date published: 2026-06-21T07:29:20Z
  text: {"copyright_id":"0xaa931e41f234a32cc2779cd410069dea1ed166bdfb0981c0e34863cfaa4cc613","name":"Johnny Matt","registered_at":"2026-06-21T06:25:01Z","symbol":"NIM1847737","token_address":"0x8209636bf86ad36cb29f6b6e79989548e4cb5474","type":"artist","uuid":"e0f7ca00-2b92-4ee2-80f5-d2afc434d137"}
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