Família de Rua
type: MusicGroup
popularity: 2
followers: 446
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xa0c5f0b2f48ffc12e921a13a1f61cf163e905978c674e5bd1fe9b737910ad8da
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/802c26b3-b628-4fb6-a7c6-a802ee178ac9.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/802c26b3-b628-4fb6-a7c6-a802ee178ac9.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/802c26b3-b628-4fb6-a7c6-a802ee178ac9
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-19T03:22:39Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xa0c5f0b2f48ffc12e921a13a1f61cf163e905978c674e5bd1fe9b737910ad8da","name":"Família de Rua","registered_at":"2026-06-17T10:19:06Z","symbol":"NIM1364741","token_address":"0xf2926b6a93c647ee6329bbbed6f038e33f9eb8a8","type":"artist","uuid":"802c26b3-b628-4fb6-a7c6-a802ee178ac9"}
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
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa0c5f0b2f48ffc12e921a13a1f61cf163e905978c674e5bd1fe9b737910ad8da. 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/802c26b3-b628-4fb6-a7c6-a802ee178ac9.json and https://artists.proofprofile.net/proofs/artist/802c26b3-b628-4fb6-a7c6-a802ee178ac9.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-19T03:22:39Z
  text: {"copyright_id":"0xa0c5f0b2f48ffc12e921a13a1f61cf163e905978c674e5bd1fe9b737910ad8da","name":"Família de Rua","registered_at":"2026-06-17T10:19:06Z","symbol":"NIM1364741","token_address":"0xf2926b6a93c647ee6329bbbed6f038e33f9eb8a8","type":"artist","uuid":"802c26b3-b628-4fb6-a7c6-a802ee178ac9"}
album: Nacional Sessions #1
  type: MusicAlbum
  date published: 2022-03-04
album: Nacional Sessions #2
  type: MusicAlbum
  date published: 2022-03-11
album: Duelo de MCs Nacional 2020
  type: MusicAlbum
  date published: 2022-03-25
album: Duelo de Mcs Nacional 2022
  type: MusicAlbum
  date published: 2023-02-17
album: Nacional Sessions #3
  type: MusicAlbum
  date published: 2023-05-05
album: Duelo de Mcs Nacional 2016
  type: MusicAlbum
  date published: 2025-10-10
album: Duelo de Mcs Nacional 2017
  type: MusicAlbum
  date published: 2025-10-10
  track: César Vs Alves (Primeira Fase #1)
    type: MusicRecording
    duration: PT8M27S
    duration ms: 507000
    explicit: false
    by artist: Família de Rua
    in album: Duelo de Mcs Nacional 2017
      type: MusicAlbum
      date published: 2025-10-10
    isrc code: BC5FA2500012
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-20T05:02:53+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0xdef05a98b986bd2fcc45823f8a63860930353b3845a270c65fb2570762f94b5b
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 958832
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/958832
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/BC5FA2500012
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-20T08:02:55Z
    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
    subject of: OpenTimestamps Proof of Existence
      type: DigitalDocument
      encoding format: application/vnd.opentimestamps.ots
      description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdef05a98b986bd2fcc45823f8a63860930353b3845a270c65fb2570762f94b5b. Chain 2 (Bitcoin): anchored in block 958832 (2026-07-20T08:02:55Z), 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/BC5FA2500012.
      date published: 2026-07-20T08:02:55Z
    audio: César Vs Alves (Primeira Fase #1)
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 90.2
      additional property: Musical Key
        type: PropertyValue
        value: 6
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 1
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.378
      additional property: Energy
        type: PropertyValue
        value: 0.951
      additional property: Speechiness
        type: PropertyValue
        value: 0.577
      additional property: Acousticness
        type: PropertyValue
        value: 0.584
      additional property: Instrumentalness
        type: PropertyValue
        value: 0
      additional property: Liveness
        type: PropertyValue
        value: 0.673
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.326
      additional property: Loudness (dB)
        type: PropertyValue
        value: -6.272
      additional property: Key Name
        type: PropertyValue
        value: F#
      additional property: Mode Name
        type: PropertyValue
        value: Major