Unidos de Lucas
type: MusicGroup
genre: samba
popularity: 2
followers: 107
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xc8fe998eb63f66a6f4672e82871ef8c24220d20f24159b7f0b8114ebf32bcb73
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954516
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954516
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/a0373cfc-bf03-4838-b8fa-c336812ad04f.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/a0373cfc-bf03-4838-b8fa-c336812ad04f.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/a0373cfc-bf03-4838-b8fa-c336812ad04f
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-20T07:04:44Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xc8fe998eb63f66a6f4672e82871ef8c24220d20f24159b7f0b8114ebf32bcb73","name":"Unidos de Lucas","registered_at":"2026-06-20T05:25:47Z","symbol":"NIM1525825","token_address":"0xe10d2012ab594e2ee30e2dfc8dea5d5d229841a9","type":"artist","uuid":"a0373cfc-bf03-4838-b8fa-c336812ad04f"}
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 0xc8fe998eb63f66a6f4672e82871ef8c24220d20f24159b7f0b8114ebf32bcb73. Chain 2 (Bitcoin): anchored in block 954516 (2026-06-20T07:04:44Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/a0373cfc-bf03-4838-b8fa-c336812ad04f.json and https://artists.proofprofile.net/proofs/artist/a0373cfc-bf03-4838-b8fa-c336812ad04f.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-20T07:04:44Z
  text: {"copyright_id":"0xc8fe998eb63f66a6f4672e82871ef8c24220d20f24159b7f0b8114ebf32bcb73","name":"Unidos de Lucas","registered_at":"2026-06-20T05:25:47Z","symbol":"NIM1525825","token_address":"0xe10d2012ab594e2ee30e2dfc8dea5d5d229841a9","type":"artist","uuid":"a0373cfc-bf03-4838-b8fa-c336812ad04f"}
track: As Lambanças de Dois Cabras da Peste, o Testamento, Alguns Tostões e o Livramento da Compadecida
  type: MusicRecording
  duration: PT5M0S
  duration ms: 300010
  explicit: false
  by artist: SuperLiga
  by artist: Unidos de Lucas
  by artist: Viny Machado
  in album: Sambas de Enredo 2025: Série Prata (Superliga Carnavalesca do Brasil)
    type: MusicAlbum
    date published: 2025-01-18
  isrc code: BKST02500044
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-29T14:20:20+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x5c4fae2f70d532a8ee66ffb7aacecc78d2e111cdf417060bf98ccc5092280a04
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 960117
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/960117
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/BKST02500044
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-29T14:28:24Z
  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 0x5c4fae2f70d532a8ee66ffb7aacecc78d2e111cdf417060bf98ccc5092280a04. Chain 2 (Bitcoin): anchored in block 960117 (2026-07-29T14:28:24Z), 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/BKST02500044.
    date published: 2026-07-29T14:28:24Z
  audio: As Lambanças de Dois Cabras da Peste, o Testamento, Alguns Tostões e o Livramento da Compadecida
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 145.205
    additional property: Musical Key
      type: PropertyValue
      value: 2
    additional property: Mode (Major/Minor)
      type: PropertyValue
      value: 1
    additional property: Time Signature
      type: PropertyValue
      value: 5
    additional property: Danceability
      type: PropertyValue
      value: 0.631
    additional property: Energy
      type: PropertyValue
      value: 0.669
    additional property: Speechiness
      type: PropertyValue
      value: 0.106
    additional property: Acousticness
      type: PropertyValue
      value: 0.088
    additional property: Instrumentalness
      type: PropertyValue
      value: 0
    additional property: Liveness
      type: PropertyValue
      value: 0.367
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.607
    additional property: Loudness (dB)
      type: PropertyValue
      value: -11.696
    additional property: Key Name
      type: PropertyValue
      value: D
    additional property: Mode Name
      type: PropertyValue
      value: Major