DJ João da 17
type: MusicGroup
popularity: 10
followers: 188
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x693b4681a58485ed77346102c09af0f8d5be7508ccf17fd61da992c967fa636b
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954742
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954742
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/fdc93ff0-f313-464f-91e6-0e8d856c51c1.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/fdc93ff0-f313-464f-91e6-0e8d856c51c1.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/fdc93ff0-f313-464f-91e6-0e8d856c51c1
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-21T20:46:40Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x693b4681a58485ed77346102c09af0f8d5be7508ccf17fd61da992c967fa636b","name":"DJ João da 17","registered_at":"2026-06-21T18:06:53Z","symbol":"NIM1996595","token_address":"0xf280b07eed77f0ca51833aebe71471b9393fb57d","type":"artist","uuid":"fdc93ff0-f313-464f-91e6-0e8d856c51c1"}
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 0x693b4681a58485ed77346102c09af0f8d5be7508ccf17fd61da992c967fa636b. Chain 2 (Bitcoin): anchored in block 954742 (2026-06-21T20:46:40Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/fdc93ff0-f313-464f-91e6-0e8d856c51c1.json and https://artists.proofprofile.net/proofs/artist/fdc93ff0-f313-464f-91e6-0e8d856c51c1.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-21T20:46:40Z
  text: {"copyright_id":"0x693b4681a58485ed77346102c09af0f8d5be7508ccf17fd61da992c967fa636b","name":"DJ João da 17","registered_at":"2026-06-21T18:06:53Z","symbol":"NIM1996595","token_address":"0xf280b07eed77f0ca51833aebe71471b9393fb57d","type":"artist","uuid":"fdc93ff0-f313-464f-91e6-0e8d856c51c1"}
album: Soca Fofo É Crlh Vs Eu Nn Troco Essa Put
  type: MusicAlbum
  date published: 2023-01-30