Martinez 687
type: MusicGroup
genre: portuguese hip hop
popularity: 2
followers: 101
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x2090e777e9f0f52ec7356dd3efbbd02064cd93762c6d167147cd87841ce608ca
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/cfd586b7-5bb0-482c-b3b8-ae3b9c8edb45.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/cfd586b7-5bb0-482c-b3b8-ae3b9c8edb45.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/cfd586b7-5bb0-482c-b3b8-ae3b9c8edb45
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-21T07:29:20Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x2090e777e9f0f52ec7356dd3efbbd02064cd93762c6d167147cd87841ce608ca","name":"Martinez 687","registered_at":"2026-06-21T00:58:03Z","symbol":"NIM1769676","token_address":"0x7d7b91e8e8c3019c1024a96994d1d59cd42e5318","type":"artist","uuid":"cfd586b7-5bb0-482c-b3b8-ae3b9c8edb45"}
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 0x2090e777e9f0f52ec7356dd3efbbd02064cd93762c6d167147cd87841ce608ca. 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/cfd586b7-5bb0-482c-b3b8-ae3b9c8edb45.json and https://artists.proofprofile.net/proofs/artist/cfd586b7-5bb0-482c-b3b8-ae3b9c8edb45.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-21T07:29:20Z
  text: {"copyright_id":"0x2090e777e9f0f52ec7356dd3efbbd02064cd93762c6d167147cd87841ce608ca","name":"Martinez 687","registered_at":"2026-06-21T00:58:03Z","symbol":"NIM1769676","token_address":"0x7d7b91e8e8c3019c1024a96994d1d59cd42e5318","type":"artist","uuid":"cfd586b7-5bb0-482c-b3b8-ae3b9c8edb45"}
album: Chocolate em Marte
  type: MusicAlbum
  date published: 2019-04-03
album: Sede de Vencer
  type: MusicAlbum
  date published: 2019-07-13
album: Marshmallows Em Marte
  type: MusicAlbum
  date published: 2020-01-01
album: Quando Isto Acabar...
  type: MusicAlbum
  date published: 2020-05-06
album: Purga
  type: MusicAlbum
  date published: 2020-10-05
album: Presidente
  type: MusicAlbum
  date published: 2024-10-07
album: A Vida Que Deus Me Deu
  type: MusicAlbum
  date published: 2025-03-09