Ctrl + N
type: MusicGroup
popularity: 4
followers: 2479
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x9ee18cbb9407b866987d0cb793cff4d6df16b0d234d3e0159b2e5878ef394fa3
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954784
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954784
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/f2717900-16b9-4323-81b7-e5b85c5ee068.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/f2717900-16b9-4323-81b7-e5b85c5ee068.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/f2717900-16b9-4323-81b7-e5b85c5ee068
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-22T02:53:59Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x9ee18cbb9407b866987d0cb793cff4d6df16b0d234d3e0159b2e5878ef394fa3","name":"Ctrl + N","registered_at":"2026-06-21T14:09:40Z","symbol":"NIM1943479","token_address":"0xe3db0114dea681523bf7b050936886b70fd4b342","type":"artist","uuid":"f2717900-16b9-4323-81b7-e5b85c5ee068"}
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 0x9ee18cbb9407b866987d0cb793cff4d6df16b0d234d3e0159b2e5878ef394fa3. Chain 2 (Bitcoin): anchored in block 954784 (2026-06-22T02:53:59Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/f2717900-16b9-4323-81b7-e5b85c5ee068.json and https://artists.proofprofile.net/proofs/artist/f2717900-16b9-4323-81b7-e5b85c5ee068.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-22T02:53:59Z
  text: {"copyright_id":"0x9ee18cbb9407b866987d0cb793cff4d6df16b0d234d3e0159b2e5878ef394fa3","name":"Ctrl + N","registered_at":"2026-06-21T14:09:40Z","symbol":"NIM1943479","token_address":"0xe3db0114dea681523bf7b050936886b70fd4b342","type":"artist","uuid":"f2717900-16b9-4323-81b7-e5b85c5ee068"}
album: Eu Prefiro
  type: MusicAlbum
  date published: 2018-06-03
  track: Eu Prefiro
    type: MusicRecording
    duration: PT3M32S
    duration ms: 212312
    explicit: false
    by artist: Ctrl + N
    in album: Eu Prefiro
      type: MusicAlbum
      date published: 2018-06-03
    isrc code: USHM21821747
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-05T19:44:18+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x75bc039f8f49f9fd9ca087aabc1725fe8d14cb6ec3a3e51ef79a0ed8cc457ab9
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 956856
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/956856
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USHM21821747
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-06T01:25:57Z
    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 0x75bc039f8f49f9fd9ca087aabc1725fe8d14cb6ec3a3e51ef79a0ed8cc457ab9. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/USHM21821747.
      date published: 2026-07-06T01:25:57Z
    audio: Eu Prefiro
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 110.057
      additional property: Musical Key
        type: PropertyValue
        value: 11
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 0
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.787
      additional property: Energy
        type: PropertyValue
        value: 0.433
      additional property: Speechiness
        type: PropertyValue
        value: 0.354
      additional property: Acousticness
        type: PropertyValue
        value: 0.386
      additional property: Instrumentalness
        type: PropertyValue
        value: 0
      additional property: Liveness
        type: PropertyValue
        value: 0.182
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.882
      additional property: Loudness (dB)
        type: PropertyValue
        value: -11.32
      additional property: Key Name
        type: PropertyValue
        value: B
      additional property: Mode Name
        type: PropertyValue
        value: Minor
album: Afeminada
  type: MusicAlbum
  date published: 2018-07-11
album: Grita
  type: MusicAlbum
  date published: 2018-09-28
album: Táxi Pra Paris
  type: MusicAlbum
  date published: 2019-10-04
album: Madame Dagadá
  type: MusicAlbum
  date published: 2020-01-31
album: Vrá
  type: MusicAlbum
  date published: 2020-04-09
album: Tomara Que Caia
  type: MusicAlbum
  date published: 2020-06-24
album: Eu Prefiro (Remix)
  type: MusicAlbum
  date published: 2020-06-28
album: Ainda Dá Tempo
  type: MusicAlbum
  date published: 2020-10-09
album: Táxi pra Paris (Pajubá Festival)
  type: MusicAlbum
  date published: 2021-04-07
album: Ainda Dá Tempo (Acústico)
  type: MusicAlbum
  date published: 2021-05-08
album: Apocalipse Zumbixa
  type: MusicAlbum
  date published: 2021-10-28