Cidade Azul
type: MusicGroup
genre: midwest emo
popularity: 5
followers: 476
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x1b4013e2274bdabb6dfc788d0c84269577ba192757f3f261d4d0c9b4f67f5f52
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954066
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954066
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/5fb5fc3d-f6cc-4dfc-bc35-a3ab499f822a.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/5fb5fc3d-f6cc-4dfc-bc35-a3ab499f822a.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/5fb5fc3d-f6cc-4dfc-bc35-a3ab499f822a
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-17T08:11:48Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x1b4013e2274bdabb6dfc788d0c84269577ba192757f3f261d4d0c9b4f67f5f52","name":"Cidade Azul","registered_at":"2026-06-16T23:02:31Z","symbol":"NIM1203351","token_address":"0x5228d57887ceb94979ed11b1477a9cef064f38b7","type":"artist","uuid":"5fb5fc3d-f6cc-4dfc-bc35-a3ab499f822a"}
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 0x1b4013e2274bdabb6dfc788d0c84269577ba192757f3f261d4d0c9b4f67f5f52. Chain 2 (Bitcoin): anchored in block 954066 (2026-06-17T08:11:48Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/5fb5fc3d-f6cc-4dfc-bc35-a3ab499f822a.json and https://artists.proofprofile.net/proofs/artist/5fb5fc3d-f6cc-4dfc-bc35-a3ab499f822a.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-17T08:11:48Z
  text: {"copyright_id":"0x1b4013e2274bdabb6dfc788d0c84269577ba192757f3f261d4d0c9b4f67f5f52","name":"Cidade Azul","registered_at":"2026-06-16T23:02:31Z","symbol":"NIM1203351","token_address":"0x5228d57887ceb94979ed11b1477a9cef064f38b7","type":"artist","uuid":"5fb5fc3d-f6cc-4dfc-bc35-a3ab499f822a"}
album: Cidade Azul
  type: MusicAlbum
  date published: 2021-08-20
album: eu duvido do fim
  type: MusicAlbum
  date published: 2023-03-24
album: que não cabe mais aqui
  type: MusicAlbum
  date published: 2023-11-10
album: prisão de vidro
  type: MusicAlbum
  date published: 2025-08-06
  track: prisão de vidro
    type: MusicRecording
    duration: PT3M41S
    duration ms: 221614
    explicit: true
    by artist: Cidade Azul
    in album: prisão de vidro
      type: MusicAlbum
      date published: 2025-08-06
    genre: midwest emo
    isrc code: BC9GS2500007
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-05T05:49:12+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0xf41cb12631d063d31866b145419b3c81fd903a7406a702796170ee7aa215b46d
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 956776
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/956776
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/BC9GS2500007
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-05T10:59:37Z
    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 0xf41cb12631d063d31866b145419b3c81fd903a7406a702796170ee7aa215b46d. Chain 2 (Bitcoin): anchored in block 956776 (2026-07-05T10:59:37Z), 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/BC9GS2500007.
      date published: 2026-07-05T10:59:37Z
    audio: prisão de vidro
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 157.008
      additional property: Musical Key
        type: PropertyValue
        value: 2
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 1
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.56
      additional property: Energy
        type: PropertyValue
        value: 0.61
      additional property: Speechiness
        type: PropertyValue
        value: 0.037
      additional property: Acousticness
        type: PropertyValue
        value: 0.016
      additional property: Instrumentalness
        type: PropertyValue
        value: 0.098
      additional property: Liveness
        type: PropertyValue
        value: 0.154
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.229
      additional property: Loudness (dB)
        type: PropertyValue
        value: -7.524
      additional property: Key Name
        type: PropertyValue
        value: D
      additional property: Mode Name
        type: PropertyValue
        value: Major