Mc NN da 7
type: MusicGroup
popularity: 7
followers: 191
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xb8c4474e9f047c022814bf5044f76e4e35b08bce6b1443e12a48204b790598f2
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953975
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953975
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/2a61ea61-3a22-4f0e-abef-cd4b6a7eae9d.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/2a61ea61-3a22-4f0e-abef-cd4b6a7eae9d.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/2a61ea61-3a22-4f0e-abef-cd4b6a7eae9d
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-16T16:53:41Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xb8c4474e9f047c022814bf5044f76e4e35b08bce6b1443e12a48204b790598f2","name":"Mc NN da 7","registered_at":"2026-06-16T04:35:57Z","symbol":"NIM0939279","token_address":"0x7a255b3745cd862a2e703c0248c20a39d5f6e268","type":"artist","uuid":"2a61ea61-3a22-4f0e-abef-cd4b6a7eae9d"}
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 0xb8c4474e9f047c022814bf5044f76e4e35b08bce6b1443e12a48204b790598f2. Chain 2 (Bitcoin): anchored in block 953975 (2026-06-16T16:53:41Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/2a61ea61-3a22-4f0e-abef-cd4b6a7eae9d.json and https://artists.proofprofile.net/proofs/artist/2a61ea61-3a22-4f0e-abef-cd4b6a7eae9d.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-16T16:53:41Z
  text: {"copyright_id":"0xb8c4474e9f047c022814bf5044f76e4e35b08bce6b1443e12a48204b790598f2","name":"Mc NN da 7","registered_at":"2026-06-16T04:35:57Z","symbol":"NIM0939279","token_address":"0x7a255b3745cd862a2e703c0248c20a39d5f6e268","type":"artist","uuid":"2a61ea61-3a22-4f0e-abef-cd4b6a7eae9d"}
album: Profissão Perigo
  type: MusicAlbum
  date published: 2023-09-17
album: Espirrando Lança
  type: MusicAlbum
  date published: 2025-02-04
  track: Espirrando Lança
    type: MusicRecording
    duration: PT2M46S
    duration ms: 166153
    explicit: true
    by artist: Mc NN da 7
    in album: Espirrando Lança
      type: MusicAlbum
      date published: 2025-02-04
    isrc code: BX4IU2501783
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-04T10:33:28+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0xca8571a51b4cd36d10bd7e7a8be0a69619bb2fbd09694edf17889b71c4bd542f
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 956711
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/956711
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/BX4IU2501783
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-04T22:48:52Z
    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 0xca8571a51b4cd36d10bd7e7a8be0a69619bb2fbd09694edf17889b71c4bd542f. Chain 2 (Bitcoin): anchored in block 956711 (2026-07-04T22:48:52Z), 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/BX4IU2501783.
      date published: 2026-07-04T22:48:52Z
    audio: Espirrando Lança
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 77.221
      additional property: Musical Key
        type: PropertyValue
        value: 0
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 1
      additional property: Time Signature
        type: PropertyValue
        value: 5
      additional property: Danceability
        type: PropertyValue
        value: 0.573
      additional property: Energy
        type: PropertyValue
        value: 0.782
      additional property: Speechiness
        type: PropertyValue
        value: 0.17
      additional property: Acousticness
        type: PropertyValue
        value: 0.343
      additional property: Instrumentalness
        type: PropertyValue
        value: 0
      additional property: Liveness
        type: PropertyValue
        value: 0.062
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.825
      additional property: Loudness (dB)
        type: PropertyValue
        value: -3.762
      additional property: Key Name
        type: PropertyValue
        value: C
      additional property: Mode Name
        type: PropertyValue
        value: Major
album: Portador Do Fuzil
  type: MusicAlbum
  date published: 2025-03-24
album: Desejo das mulher
  type: MusicAlbum
  date published: 2025-07-20