Na Cena
type: MusicGroup
genre: brazilian hip hop
popularity: 2
followers: 89
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x4d02cd48a90fe6ed16fa3996d0b8a6561da715ed0bbd43c34a8a770bfe254239
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954342
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954342
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/85f159ff-21f3-411f-abcd-6103c4b5e819.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/85f159ff-21f3-411f-abcd-6103c4b5e819.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/85f159ff-21f3-411f-abcd-6103c4b5e819
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-19T03:22:39Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x4d02cd48a90fe6ed16fa3996d0b8a6561da715ed0bbd43c34a8a770bfe254239","name":"Na Cena","registered_at":"2026-06-17T12:23:41Z","symbol":"NIM1394442","token_address":"0xd75802ba1a1c33aeda8013d569cbf1d85b6b765b","type":"artist","uuid":"85f159ff-21f3-411f-abcd-6103c4b5e819"}
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 0x4d02cd48a90fe6ed16fa3996d0b8a6561da715ed0bbd43c34a8a770bfe254239. Chain 2 (Bitcoin): anchored in block 954342 (2026-06-19T03:22:39Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/85f159ff-21f3-411f-abcd-6103c4b5e819.json and https://artists.proofprofile.net/proofs/artist/85f159ff-21f3-411f-abcd-6103c4b5e819.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-19T03:22:39Z
  text: {"copyright_id":"0x4d02cd48a90fe6ed16fa3996d0b8a6561da715ed0bbd43c34a8a770bfe254239","name":"Na Cena","registered_at":"2026-06-17T12:23:41Z","symbol":"NIM1394442","token_address":"0xd75802ba1a1c33aeda8013d569cbf1d85b6b765b","type":"artist","uuid":"85f159ff-21f3-411f-abcd-6103c4b5e819"}
album: A Versão Por Trás Da Mídia
  type: MusicAlbum
  date published: 2010
album: A Versão por Trás da Mídia
  type: MusicAlbum
  date published: 2023-08-05
album: Na Cena Rap Nacional
  type: MusicAlbum
  date published: 2024-08-17
album: O Depois
  type: MusicAlbum
  date published: 2024-11-11