Marquinhos Dutra
type: MusicGroup
popularity: 2
followers: 248
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xf019da58ff513281ed8f1e697ac8524999f994df8a83c35079544c8713d8ed9f
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953909
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953909
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/070ccef0-8780-4127-bb0a-c716497582e7.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/070ccef0-8780-4127-bb0a-c716497582e7.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/070ccef0-8780-4127-bb0a-c716497582e7
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-16T07:53:13Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xf019da58ff513281ed8f1e697ac8524999f994df8a83c35079544c8713d8ed9f","name":"Marquinhos Dutra","registered_at":"2026-06-15T15:58:34Z","symbol":"NIM0758512","token_address":"0x7376625dc82b065ce81ca4dd06bfb54a58bd746f","type":"artist","uuid":"070ccef0-8780-4127-bb0a-c716497582e7"}
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 0xf019da58ff513281ed8f1e697ac8524999f994df8a83c35079544c8713d8ed9f. Chain 2 (Bitcoin): anchored in block 953909 (2026-06-16T07:53:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/070ccef0-8780-4127-bb0a-c716497582e7.json and https://artists.proofprofile.net/proofs/artist/070ccef0-8780-4127-bb0a-c716497582e7.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-16T07:53:13Z
  text: {"copyright_id":"0xf019da58ff513281ed8f1e697ac8524999f994df8a83c35079544c8713d8ed9f","name":"Marquinhos Dutra","registered_at":"2026-06-15T15:58:34Z","symbol":"NIM0758512","token_address":"0x7376625dc82b065ce81ca4dd06bfb54a58bd746f","type":"artist","uuid":"070ccef0-8780-4127-bb0a-c716497582e7"}
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