João assis
type: MusicGroup
description: João Assis (born July 11, 1983), is a Brazilian Brazilian jiu-jitsu practitioner and a former mixed martial artist. Assis is a world no-gi champion and an ADCC gold and silver medalist. João became th
popularity: 8
followers: 205
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x98339c3f229bd178a1bc1d8320160c7c86febc194f11a2488a8ce566966ad6fc
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/d8a8d3d8-b1e2-45e0-8969-856b65cfefbd.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/d8a8d3d8-b1e2-45e0-8969-856b65cfefbd.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/d8a8d3d8-b1e2-45e0-8969-856b65cfefbd
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-21T07:29:20Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x98339c3f229bd178a1bc1d8320160c7c86febc194f11a2488a8ce566966ad6fc","name":"João assis","registered_at":"2026-06-21T03:47:13Z","symbol":"NIM1810321","token_address":"0x525b8c19ccdd0df03acea3f8a1fc9d8d61f36caa","type":"artist","uuid":"d8a8d3d8-b1e2-45e0-8969-856b65cfefbd"}
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 0x98339c3f229bd178a1bc1d8320160c7c86febc194f11a2488a8ce566966ad6fc. 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/d8a8d3d8-b1e2-45e0-8969-856b65cfefbd.json and https://artists.proofprofile.net/proofs/artist/d8a8d3d8-b1e2-45e0-8969-856b65cfefbd.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-21T07:29:20Z
  text: {"copyright_id":"0x98339c3f229bd178a1bc1d8320160c7c86febc194f11a2488a8ce566966ad6fc","name":"João assis","registered_at":"2026-06-21T03:47:13Z","symbol":"NIM1810321","token_address":"0x525b8c19ccdd0df03acea3f8a1fc9d8d61f36caa","type":"artist","uuid":"d8a8d3d8-b1e2-45e0-8969-856b65cfefbd"}
album: Clickbait
  type: MusicAlbum
  date published: 2023-05-04
album: Te Avistei
  type: MusicAlbum
  date published: 2023-05-29
album: BOTA O HALLS NA LÍNGUA AMOR
  type: MusicAlbum
  date published: 2023-07-11
album: Novidade na Área
  type: MusicAlbum
  date published: 2023-07-13
album: Da Licença Aqui Novinha
  type: MusicAlbum
  date published: 2024-02-22
album: PUTA É SÓ UM DETALHE
  type: MusicAlbum
  date published: 2025-01-14
album: I ADORE YOU
  type: MusicAlbum
  date published: 2025-01-15
album: MEU CARRO NÃO TEM PORTA LUVA X DENTRO DO CARRO
  type: MusicAlbum
  date published: 2025-01-24
album: EU SÓ DE CANTO OBSERVANDO ESSA SALADA
  type: MusicAlbum
  date published: 2025-02-08
track: Na Batida Do Som
  type: MusicRecording
  duration: PT2M30S
  duration ms: 150447
  explicit: false
  by artist: Priscila Ribeiro
  by artist: DJ Giselle Dario
  by artist: DJ ML da Vila
  by artist: Tibery
  by artist: João assis
  in album: Na Batida Do Som
    type: MusicAlbum
    date published: 2024-01-25
  isrc code: BXPFY2400002
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-30T14:29:38+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x80a07916206cb266510118563a32b5b86c5f3e37e117aa77a37b51bf9e83d012
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 960266
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/960266
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/BXPFY2400002
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-30T14:44:50Z
  additional property: OTSVerifyInstructions
    type: PropertyValue
    value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 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. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp 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 0x80a07916206cb266510118563a32b5b86c5f3e37e117aa77a37b51bf9e83d012. Chain 2 (Bitcoin): anchored in block 960266 (2026-07-30T14:44:50Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/BXPFY2400002.
    date published: 2026-07-30T14:44:50Z
  audio: Na Batida Do Som
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 141.164
    additional property: Musical Key
      type: PropertyValue
      value: 9
    additional property: Mode (Major/Minor)
      type: PropertyValue
      value: 0
    additional property: Time Signature
      type: PropertyValue
      value: 5
    additional property: Danceability
      type: PropertyValue
      value: 0.884
    additional property: Energy
      type: PropertyValue
      value: 0.722
    additional property: Speechiness
      type: PropertyValue
      value: 0.08
    additional property: Acousticness
      type: PropertyValue
      value: 0.132
    additional property: Instrumentalness
      type: PropertyValue
      value: 0
    additional property: Liveness
      type: PropertyValue
      value: 0.083
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.748
    additional property: Loudness (dB)
      type: PropertyValue
      value: -9.9
    additional property: Key Name
      type: PropertyValue
      value: A
    additional property: Mode Name
      type: PropertyValue
      value: Minor