Mark Sinestra
type: MusicGroup
genre: deathcore
popularity: 2
followers: 3109
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x4fd91a117be9578fec0ec6390f78a27d0cbd6bd3ebd4245142b25a23e5a6b9e7
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954784
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954784
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/e9217e61-7092-48ff-807d-a56e33a4272c.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/e9217e61-7092-48ff-807d-a56e33a4272c.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/e9217e61-7092-48ff-807d-a56e33a4272c
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-22T02:53:59Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x4fd91a117be9578fec0ec6390f78a27d0cbd6bd3ebd4245142b25a23e5a6b9e7","name":"Mark Sinestra","registered_at":"2026-06-21T09:56:20Z","symbol":"NIM1892836","token_address":"0x162a13d2c56d27f5038a4aca4fa23922f08d0abc","type":"artist","uuid":"e9217e61-7092-48ff-807d-a56e33a4272c"}
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 0x4fd91a117be9578fec0ec6390f78a27d0cbd6bd3ebd4245142b25a23e5a6b9e7. Chain 2 (Bitcoin): anchored in block 954784 (2026-06-22T02:53:59Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/e9217e61-7092-48ff-807d-a56e33a4272c.json and https://artists.proofprofile.net/proofs/artist/e9217e61-7092-48ff-807d-a56e33a4272c.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-22T02:53:59Z
  text: {"copyright_id":"0x4fd91a117be9578fec0ec6390f78a27d0cbd6bd3ebd4245142b25a23e5a6b9e7","name":"Mark Sinestra","registered_at":"2026-06-21T09:56:20Z","symbol":"NIM1892836","token_address":"0x162a13d2c56d27f5038a4aca4fa23922f08d0abc","type":"artist","uuid":"e9217e61-7092-48ff-807d-a56e33a4272c"}
album: The Black Horns
  type: MusicAlbum
  date published: 2021-07-01
album: The Black Horns
  type: MusicAlbum
  date published: 2021-07-01
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  type: MusicAlbum
  date published: 2022-05-27
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  date published: 2022-05-27
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  type: MusicAlbum
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  type: MusicAlbum
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