Os Cascas
type: MusicGroup
genre: devotional
popularity: 8
followers: 353
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x91cda3b7a272b11395f87c98e5d6208d0cf23d6545ee8a6b8a0fc5cdf6e5edca
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954124
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954124
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/7b756d8c-93ed-45af-9d07-1bb3a8bbeae9.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/7b756d8c-93ed-45af-9d07-1bb3a8bbeae9.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/7b756d8c-93ed-45af-9d07-1bb3a8bbeae9
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-17T18:22:18Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x91cda3b7a272b11395f87c98e5d6208d0cf23d6545ee8a6b8a0fc5cdf6e5edca","name":"Os Cascas","registered_at":"2026-06-17T08:38:38Z","symbol":"NIM1340774","token_address":"0x4384042ee1fa9f8799ff07c8ddf4a9786df82375","type":"artist","uuid":"7b756d8c-93ed-45af-9d07-1bb3a8bbeae9"}
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 0x91cda3b7a272b11395f87c98e5d6208d0cf23d6545ee8a6b8a0fc5cdf6e5edca. Chain 2 (Bitcoin): anchored in block 954174 (2026-06-18T03:01:36Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/7b756d8c-93ed-45af-9d07-1bb3a8bbeae9.json and https://artists.proofprofile.net/proofs/artist/7b756d8c-93ed-45af-9d07-1bb3a8bbeae9.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-18T03:01:36Z
  text: {"copyright_id":"0x91cda3b7a272b11395f87c98e5d6208d0cf23d6545ee8a6b8a0fc5cdf6e5edca","name":"Os Cascas","registered_at":"2026-06-17T08:38:38Z","symbol":"NIM1340774","token_address":"0x4384042ee1fa9f8799ff07c8ddf4a9786df82375","type":"artist","uuid":"7b756d8c-93ed-45af-9d07-1bb3a8bbeae9"}
album: Só Pode Vir de Você
  type: MusicAlbum
  date published: 2023-07-14
album: Verdadeira Comunhão
  type: MusicAlbum
  date published: 2024-08-02
  track: Verdadeira Comunhão
    type: MusicRecording
    duration: PT5M20S
    duration ms: 320622
    explicit: false
    by artist: Os Cascas
    in album: Verdadeira Comunhão
      type: MusicAlbum
      date published: 2024-08-02
    genre: devotional
    isrc code: BRQI72400001
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-18T15:39:03+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x3bb51b966f2be22203be18bc00a4f3ae7544310a6c6fc2d8e70472eec651de6d
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 958576
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/958576
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/BRQI72400001
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-18T16:22:28Z
    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 0x3bb51b966f2be22203be18bc00a4f3ae7544310a6c6fc2d8e70472eec651de6d. Chain 2 (Bitcoin): anchored in block 958576 (2026-07-18T16:22:28Z), 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/BRQI72400001.
      date published: 2026-07-18T16:22:28Z
    audio: Verdadeira Comunhão
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 126.109
      additional property: Musical Key
        type: PropertyValue
        value: 0
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 1
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.514
      additional property: Energy
        type: PropertyValue
        value: 0.382
      additional property: Speechiness
        type: PropertyValue
        value: 0.028
      additional property: Acousticness
        type: PropertyValue
        value: 0.38
      additional property: Instrumentalness
        type: PropertyValue
        value: 0
      additional property: Liveness
        type: PropertyValue
        value: 0.145
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.144
      additional property: Loudness (dB)
        type: PropertyValue
        value: -9.461
      additional property: Key Name
        type: PropertyValue
        value: C
      additional property: Mode Name
        type: PropertyValue
        value: Major
album: UM DIA NÃO MAIS SERÁ NECESSÁRIO O SOL
  type: MusicAlbum
  date published: 2024-09-14