Almeida Constantino
type: MusicGroup
popularity: 4
followers: 8
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x4519224a730238ce7769d1be884497a5bcd5298ff28a6d31b913e32b3a949d7f
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/9f9631d3-c458-4771-bc21-f3a912b67e1f.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/9f9631d3-c458-4771-bc21-f3a912b67e1f.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/9f9631d3-c458-4771-bc21-f3a912b67e1f
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-20T07:04:44Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x4519224a730238ce7769d1be884497a5bcd5298ff28a6d31b913e32b3a949d7f","name":"Almeida Constantino","registered_at":"2026-06-20T05:33:27Z","symbol":"NIM1526476","token_address":"0x3ac004e109d025b4dc06d2455bcb9e98ed7a8ed3","type":"artist","uuid":"9f9631d3-c458-4771-bc21-f3a912b67e1f"}
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 0x4519224a730238ce7769d1be884497a5bcd5298ff28a6d31b913e32b3a949d7f. 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/9f9631d3-c458-4771-bc21-f3a912b67e1f.json and https://artists.proofprofile.net/proofs/artist/9f9631d3-c458-4771-bc21-f3a912b67e1f.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-20T07:04:44Z
  text: {"copyright_id":"0x4519224a730238ce7769d1be884497a5bcd5298ff28a6d31b913e32b3a949d7f","name":"Almeida Constantino","registered_at":"2026-06-20T05:33:27Z","symbol":"NIM1526476","token_address":"0x3ac004e109d025b4dc06d2455bcb9e98ed7a8ed3","type":"artist","uuid":"9f9631d3-c458-4771-bc21-f3a912b67e1f"}
album: Sinto Falta
  type: MusicAlbum
  date published: 2024-05-06
album: Antídoto
  type: MusicAlbum
  date published: 2025-03-07
  track: Antídoto
    type: MusicRecording
    duration: PT3M28S
    duration ms: 208483
    explicit: false
    by artist: Almeida Constantino
    in album: Antídoto
      type: MusicAlbum
      date published: 2025-03-07
    isrc code: QZGLM2560285
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-21T04:09:53+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x4657db4ec2e29a67caec7eadffabcc3e6de9c8997244590e2572e7e0d2c34e45
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 958965
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/958965
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZGLM2560285
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-21T04:29:05Z
    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 0x4657db4ec2e29a67caec7eadffabcc3e6de9c8997244590e2572e7e0d2c34e45. Chain 2 (Bitcoin): anchored in block 958965 (2026-07-21T04:29:05Z), 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/QZGLM2560285.
      date published: 2026-07-21T04:29:05Z
    audio: Antídoto
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 126.707
      additional property: Musical Key
        type: PropertyValue
        value: 7
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 1
      additional property: Time Signature
        type: PropertyValue
        value: 5
      additional property: Danceability
        type: PropertyValue
        value: 0.463
      additional property: Energy
        type: PropertyValue
        value: 0.526
      additional property: Speechiness
        type: PropertyValue
        value: 0.078
      additional property: Acousticness
        type: PropertyValue
        value: 0.081
      additional property: Instrumentalness
        type: PropertyValue
        value: 0
      additional property: Liveness
        type: PropertyValue
        value: 0.109
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.399
      additional property: Loudness (dB)
        type: PropertyValue
        value: -8.791
      additional property: Key Name
        type: PropertyValue
        value: G
      additional property: Mode Name
        type: PropertyValue
        value: Major