Morcego Branco Eficiente
type: MusicGroup
genre: brazilian hip hop
popularity: 5
followers: 67
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x421c3186e7ff5387c087979b321f01ad2cbd679095477896f42751a48c432bd9
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953997
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953997
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/2fd8084c-87be-4b11-aaa9-135f6cf9ce1f.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/2fd8084c-87be-4b11-aaa9-135f6cf9ce1f.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/2fd8084c-87be-4b11-aaa9-135f6cf9ce1f
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-16T20:07:57Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x421c3186e7ff5387c087979b321f01ad2cbd679095477896f42751a48c432bd9","name":"Morcego Branco Eficiente","registered_at":"2026-06-16T06:14:46Z","symbol":"NIM0962879","token_address":"0xbe54428de02ef90627cfd93cd6be31ef05e38343","type":"artist","uuid":"2fd8084c-87be-4b11-aaa9-135f6cf9ce1f"}
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 0x421c3186e7ff5387c087979b321f01ad2cbd679095477896f42751a48c432bd9. Chain 2 (Bitcoin): anchored in block 953997 (2026-06-16T20:07:57Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/2fd8084c-87be-4b11-aaa9-135f6cf9ce1f.json and https://artists.proofprofile.net/proofs/artist/2fd8084c-87be-4b11-aaa9-135f6cf9ce1f.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-16T20:07:57Z
  text: {"copyright_id":"0x421c3186e7ff5387c087979b321f01ad2cbd679095477896f42751a48c432bd9","name":"Morcego Branco Eficiente","registered_at":"2026-06-16T06:14:46Z","symbol":"NIM0962879","token_address":"0xbe54428de02ef90627cfd93cd6be31ef05e38343","type":"artist","uuid":"2fd8084c-87be-4b11-aaa9-135f6cf9ce1f"}
album: Rampa
  type: MusicAlbum
  date published: 2023-12-18
album: Carta Para o Céu
  type: MusicAlbum
  date published: 2023-12-18
album: Estrada
  type: MusicAlbum
  date published: 2023-12-18
album: A Última Ida
  type: MusicAlbum
  date published: 2023-12-18
album: A Última Ida
  type: MusicAlbum
  date published: 2023-12-18
album: Porque o Rap
  type: MusicAlbum
  date published: 2023-12-18
album: Universo de Incerteza
  type: MusicAlbum
  date published: 2024-08-23
  track: Universo de Incerteza
    type: MusicRecording
    duration: PT3M32S
    duration ms: 212968
    explicit: false
    by artist: Morcego Branco Eficiente
    in album: Universo de Incerteza
      type: MusicAlbum
      date published: 2024-08-23
    genre: brazilian hip hop
    isrc code: BCPUP2400022
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-06-18T20:05:12+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0xc9f4696193c34bc08ab024364b234a52c867e4dae39de6db167ed3d9cfea2e08
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 956302
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/956302
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/BCPUP2400022
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-02T03:30:09Z
    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 0xc9f4696193c34bc08ab024364b234a52c867e4dae39de6db167ed3d9cfea2e08. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/BCPUP2400022.
      date published: 2026-07-02T03:30:09Z
    audio: Universo de Incerteza
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 104.407
      additional property: Musical Key
        type: PropertyValue
        value: 11
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 0
      additional property: Time Signature
        type: PropertyValue
        value: 5
      additional property: Danceability
        type: PropertyValue
        value: 0.7
      additional property: Energy
        type: PropertyValue
        value: 0.799
      additional property: Speechiness
        type: PropertyValue
        value: 0.309
      additional property: Acousticness
        type: PropertyValue
        value: 0.067
      additional property: Instrumentalness
        type: PropertyValue
        value: 0
      additional property: Liveness
        type: PropertyValue
        value: 0.328
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.551
      additional property: Loudness (dB)
        type: PropertyValue
        value: -10.035
      additional property: Key Name
        type: PropertyValue
        value: B
      additional property: Mode Name
        type: PropertyValue
        value: Minor