Sérgio Maposse
type: MusicGroup
genre: kizomba
popularity: 3
followers: 96
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xc9ec28071f2154815d44f7693eb4d23e3d6620e85c00fb71811465583bf1c3b8
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/776a43ba-9a01-4bfc-8a2b-5fa2e59988e1.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/776a43ba-9a01-4bfc-8a2b-5fa2e59988e1.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/776a43ba-9a01-4bfc-8a2b-5fa2e59988e1
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-17T08:11:48Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xc9ec28071f2154815d44f7693eb4d23e3d6620e85c00fb71811465583bf1c3b8","name":"Sérgio Maposse","registered_at":"2026-06-17T07:15:04Z","symbol":"NIM1320883","token_address":"0x71f9678764894687ee70f9e319bf6614d413821c","type":"artist","uuid":"776a43ba-9a01-4bfc-8a2b-5fa2e59988e1"}
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 0xc9ec28071f2154815d44f7693eb4d23e3d6620e85c00fb71811465583bf1c3b8. Chain 2 (Bitcoin): anchored in block 954115 (2026-06-17T15:44:10Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/776a43ba-9a01-4bfc-8a2b-5fa2e59988e1.json and https://artists.proofprofile.net/proofs/artist/776a43ba-9a01-4bfc-8a2b-5fa2e59988e1.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-17T15:44:10Z
  text: {"copyright_id":"0xc9ec28071f2154815d44f7693eb4d23e3d6620e85c00fb71811465583bf1c3b8","name":"Sérgio Maposse","registered_at":"2026-06-17T07:15:04Z","symbol":"NIM1320883","token_address":"0x71f9678764894687ee70f9e319bf6614d413821c","type":"artist","uuid":"776a43ba-9a01-4bfc-8a2b-5fa2e59988e1"}
album: Última Esperança
  type: MusicAlbum
  date published: 2021
album: É só Ter fé
  type: MusicAlbum
  date published: 2021
album: Queremos Te Ver
  type: MusicAlbum
  date published: 2024-04-09
  track: Queremos te ver
    type: MusicRecording
    duration: PT3M14S
    duration ms: 194821
    explicit: false
    by artist: Sérgio Maposse
    in album: Queremos Te Ver
      type: MusicAlbum
      date published: 2024-04-09
    genre: kizomba
    isrc code: QM6MZ2440885
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-18T16:34:54+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x702493ad17a724edbb9abac37175591fbb393466341784c6f10562f01b649e26
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 958582
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/958582
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QM6MZ2440885
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-18T16:47:25Z
    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 0x702493ad17a724edbb9abac37175591fbb393466341784c6f10562f01b649e26. Chain 2 (Bitcoin): anchored in block 958582 (2026-07-18T16:47:25Z), 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/QM6MZ2440885.
      date published: 2026-07-18T16:47:25Z
    audio: Queremos te ver
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 97.498
      additional property: Musical Key
        type: PropertyValue
        value: 1
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 1
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.735
      additional property: Energy
        type: PropertyValue
        value: 0.651
      additional property: Speechiness
        type: PropertyValue
        value: 0.07
      additional property: Acousticness
        type: PropertyValue
        value: 0.294
      additional property: Instrumentalness
        type: PropertyValue
        value: 0
      additional property: Liveness
        type: PropertyValue
        value: 0.082
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.702
      additional property: Loudness (dB)
        type: PropertyValue
        value: -7.319
      additional property: Key Name
        type: PropertyValue
        value: C#
      additional property: Mode Name
        type: PropertyValue
        value: Major