Vossemecê
type: MusicGroup
popularity: 4
followers: 313
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x6153ac27d8d3a944aa1f3af2007af47cdc4db6f66bc173c2f506417dcfd22fc2
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954553
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954553
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/ac71317f-8b99-47bc-bb69-090a4b8a06f1.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/ac71317f-8b99-47bc-bb69-090a4b8a06f1.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/ac71317f-8b99-47bc-bb69-090a4b8a06f1
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-20T11:51:30Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x6153ac27d8d3a944aa1f3af2007af47cdc4db6f66bc173c2f506417dcfd22fc2","name":"Vossemecê","registered_at":"2026-06-20T10:09:26Z","symbol":"NIM1587752","token_address":"0x969c1c9b20807637e4f0cf37fcee29b639f25a41","type":"artist","uuid":"ac71317f-8b99-47bc-bb69-090a4b8a06f1"}
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 0x6153ac27d8d3a944aa1f3af2007af47cdc4db6f66bc173c2f506417dcfd22fc2. Chain 2 (Bitcoin): anchored in block 954553 (2026-06-20T11:51:30Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/ac71317f-8b99-47bc-bb69-090a4b8a06f1.json and https://artists.proofprofile.net/proofs/artist/ac71317f-8b99-47bc-bb69-090a4b8a06f1.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-20T11:51:30Z
  text: {"copyright_id":"0x6153ac27d8d3a944aa1f3af2007af47cdc4db6f66bc173c2f506417dcfd22fc2","name":"Vossemecê","registered_at":"2026-06-20T10:09:26Z","symbol":"NIM1587752","token_address":"0x969c1c9b20807637e4f0cf37fcee29b639f25a41","type":"artist","uuid":"ac71317f-8b99-47bc-bb69-090a4b8a06f1"}
album: Tempo
  type: MusicAlbum
  date published: 2025-01-18
  track: Tempo
    type: MusicRecording
    duration: PT2M44S
    duration ms: 164545
    explicit: false
    by artist: Vossemecê
    in album: Tempo
      type: MusicAlbum
      date published: 2025-01-18
    isrc code: PT2Z32400001
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-03T17:11:11+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x608b3686501fb2ffb66c8c43fc5d565f581b20c8588c3faf6307618e65899c61
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 956576
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/956576
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/PT2Z32400001
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-04T02:06:47Z
    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 0x608b3686501fb2ffb66c8c43fc5d565f581b20c8588c3faf6307618e65899c61. Chain 2 (Bitcoin): anchored in block 956576 (2026-07-04T02:06:47Z), 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/PT2Z32400001.
      date published: 2026-07-04T02:06:47Z
    audio: Tempo
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 130.001
      additional property: Musical Key
        type: PropertyValue
        value: 2
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 1
      additional property: Time Signature
        type: PropertyValue
        value: 3
      additional property: Danceability
        type: PropertyValue
        value: 0.515
      additional property: Energy
        type: PropertyValue
        value: 0.249
      additional property: Speechiness
        type: PropertyValue
        value: 0.03
      additional property: Acousticness
        type: PropertyValue
        value: 0.548
      additional property: Instrumentalness
        type: PropertyValue
        value: 0
      additional property: Liveness
        type: PropertyValue
        value: 0.112
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.222
      additional property: Loudness (dB)
        type: PropertyValue
        value: -10.453
      additional property: Key Name
        type: PropertyValue
        value: D
      additional property: Mode Name
        type: PropertyValue
        value: Major
album: Tempo (Acoustic Session)
  type: MusicAlbum
  date published: 2025-02-21
album: Nunca Mais é Sábado
  type: MusicAlbum
  date published: 2025-04-18
album: Avô
  type: MusicAlbum
  date published: 2025-11-07