Dj PC do Engenho
type: MusicGroup
popularity: 11
followers: 19
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xca1616ea8c1640041b6074a215ceaf8602d80698c8fd2e8acdfc5fb8e512e1f8
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953660
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953660
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/52c5b1da-b423-4d3c-a594-df163cffac74.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/52c5b1da-b423-4d3c-a594-df163cffac74.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/52c5b1da-b423-4d3c-a594-df163cffac74
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-14T17:20:01Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xca1616ea8c1640041b6074a215ceaf8602d80698c8fd2e8acdfc5fb8e512e1f8","name":"Dj PC do Engenho","registered_at":"2026-06-14T13:13:39Z","symbol":"NIM0463803","token_address":"0xe22af34145be6d6c22ddd32007f038626c4b3e77","type":"artist","uuid":"52c5b1da-b423-4d3c-a594-df163cffac74"}
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 0xca1616ea8c1640041b6074a215ceaf8602d80698c8fd2e8acdfc5fb8e512e1f8. Chain 2 (Bitcoin): anchored in block 953660 (2026-06-14T17:20:01Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/52c5b1da-b423-4d3c-a594-df163cffac74.json and https://artists.proofprofile.net/proofs/artist/52c5b1da-b423-4d3c-a594-df163cffac74.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-14T17:20:01Z
  text: {"copyright_id":"0xca1616ea8c1640041b6074a215ceaf8602d80698c8fd2e8acdfc5fb8e512e1f8","name":"Dj PC do Engenho","registered_at":"2026-06-14T13:13:39Z","symbol":"NIM0463803","token_address":"0xe22af34145be6d6c22ddd32007f038626c4b3e77","type":"artist","uuid":"52c5b1da-b423-4d3c-a594-df163cffac74"}