MC ÓPERA
type: MusicGroup
popularity: 3
followers: 4
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x99e48041354b5fa202fc0df78f1780dc469d11af34128821ede8fd098e162d93
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954549
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954549
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/a8669839-c7b5-4983-899b-cdbf7957b631.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/a8669839-c7b5-4983-899b-cdbf7957b631.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/a8669839-c7b5-4983-899b-cdbf7957b631
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-20T10:56:20Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x99e48041354b5fa202fc0df78f1780dc469d11af34128821ede8fd098e162d93","name":"MC ÓPERA","registered_at":"2026-06-20T08:33:56Z","symbol":"NIM1567616","token_address":"0x0cc265abff874a3356cf5c9ef008140cb26b8136","type":"artist","uuid":"a8669839-c7b5-4983-899b-cdbf7957b631"}
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 0x99e48041354b5fa202fc0df78f1780dc469d11af34128821ede8fd098e162d93. Chain 2 (Bitcoin): anchored in block 954549 (2026-06-20T10:56:20Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/a8669839-c7b5-4983-899b-cdbf7957b631.json and https://artists.proofprofile.net/proofs/artist/a8669839-c7b5-4983-899b-cdbf7957b631.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-20T10:56:20Z
  text: {"copyright_id":"0x99e48041354b5fa202fc0df78f1780dc469d11af34128821ede8fd098e162d93","name":"MC ÓPERA","registered_at":"2026-06-20T08:33:56Z","symbol":"NIM1567616","token_address":"0x0cc265abff874a3356cf5c9ef008140cb26b8136","type":"artist","uuid":"a8669839-c7b5-4983-899b-cdbf7957b631"}
album: HOJE QUE ELA EMBRAZA
  type: MusicAlbum
  date published: 2025-03-18
album: DITADO DOS MAIS ANTIGOS
  type: MusicAlbum
  date published: 2025-04-07
  track: DITADO DOS MAIS ANTIGOS
    type: MusicRecording
    duration: PT2M26S
    duration ms: 146620
    explicit: true
    by artist: MC ÓPERA
    in album: DITADO DOS MAIS ANTIGOS
      type: MusicAlbum
      date published: 2025-04-07
    isrc code: QZN882593918
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-22T06:40:36+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0xc450abff62335efedc38a4f4eba273934a1c69950e26b2bdf78f0c58649a2a0f
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 959107
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/959107
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZN882593918
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-22T07:19:23Z
    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 0xc450abff62335efedc38a4f4eba273934a1c69950e26b2bdf78f0c58649a2a0f. Chain 2 (Bitcoin): anchored in block 959107 (2026-07-22T07:19:23Z), 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/QZN882593918.
      date published: 2026-07-22T07:19:23Z
    audio: DITADO DOS MAIS ANTIGOS
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 129.943
      additional property: Musical Key
        type: PropertyValue
        value: 9
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 1
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.886
      additional property: Energy
        type: PropertyValue
        value: 0.651
      additional property: Speechiness
        type: PropertyValue
        value: 0.22
      additional property: Acousticness
        type: PropertyValue
        value: 0.512
      additional property: Instrumentalness
        type: PropertyValue
        value: 0
      additional property: Liveness
        type: PropertyValue
        value: 0.23
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.912
      additional property: Loudness (dB)
        type: PropertyValue
        value: -4.975
      additional property: Key Name
        type: PropertyValue
        value: A
      additional property: Mode Name
        type: PropertyValue
        value: Major
album: PONTINHO FABULOSO
  type: MusicAlbum
  date published: 2025-04-19
album: EU TE BOTO vs DESCE ATE O CHÃO
  type: MusicAlbum
  date published: 2025-04-21
album: PRA DANÇAR NA FESTA vs NA FESTA ELA JOGA
  type: MusicAlbum
  date published: 2025-06-22