Matheus Draco
type: MusicGroup
popularity: 4
followers: 24
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x93133c8f4cfb1aff3bb2d9840f2e03137e0399da0dbac341cb1feff5cd6e5fa9
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954533
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954533
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/a7415fe7-347e-4526-9956-791e05bf12ff.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/a7415fe7-347e-4526-9956-791e05bf12ff.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/a7415fe7-347e-4526-9956-791e05bf12ff
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-20T08:57:02Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x93133c8f4cfb1aff3bb2d9840f2e03137e0399da0dbac341cb1feff5cd6e5fa9","name":"Matheus Draco","registered_at":"2026-06-20T08:19:07Z","symbol":"NIM1563257","token_address":"0x9740bc8ebd3358e1601138409433ad7b7981e3c3","type":"artist","uuid":"a7415fe7-347e-4526-9956-791e05bf12ff"}
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 0x93133c8f4cfb1aff3bb2d9840f2e03137e0399da0dbac341cb1feff5cd6e5fa9. Chain 2 (Bitcoin): anchored in block 954533 (2026-06-20T08:57:02Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/a7415fe7-347e-4526-9956-791e05bf12ff.json and https://artists.proofprofile.net/proofs/artist/a7415fe7-347e-4526-9956-791e05bf12ff.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-20T08:57:02Z
  text: {"copyright_id":"0x93133c8f4cfb1aff3bb2d9840f2e03137e0399da0dbac341cb1feff5cd6e5fa9","name":"Matheus Draco","registered_at":"2026-06-20T08:19:07Z","symbol":"NIM1563257","token_address":"0x9740bc8ebd3358e1601138409433ad7b7981e3c3","type":"artist","uuid":"a7415fe7-347e-4526-9956-791e05bf12ff"}
album: Paranoia in the Night
  type: MusicAlbum
  date published: 2024-05-24
album: Vamp Silence
  type: MusicAlbum
  date published: 2024-06-28
album: Rock n Love
  type: MusicAlbum
  date published: 2024-08-02
album: AntiSocial
  type: MusicAlbum
  date published: 2024-08-29
album: Rise up Just to Flex
  type: MusicAlbum
  date published: 2024-10-18
album: Vamp
  type: MusicAlbum
  date published: 2025-02-07
  track: Vamp
    type: MusicRecording
    duration: PT2M21S
    duration ms: 141971
    explicit: false
    by artist: Matheus Draco
    in album: Vamp
      type: MusicAlbum
      date published: 2025-02-07
    isrc code: TCAJF2587875
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-20T21:11:24+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x02697aa468d2e87b790b1adcc4c8554047d0e669b31dbc2dbd96f1a8c274181f
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 958931
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/958931
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/TCAJF2587875
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-20T21:15:01Z
    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 0x02697aa468d2e87b790b1adcc4c8554047d0e669b31dbc2dbd96f1a8c274181f. Chain 2 (Bitcoin): anchored in block 958931 (2026-07-20T21:15:01Z), 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/TCAJF2587875.
      date published: 2026-07-20T21:15:01Z
    audio: Vamp
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 141.915
      additional property: Musical Key
        type: PropertyValue
        value: 2
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 1
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.614
      additional property: Energy
        type: PropertyValue
        value: 0.753
      additional property: Speechiness
        type: PropertyValue
        value: 0.043
      additional property: Acousticness
        type: PropertyValue
        value: 0.094
      additional property: Instrumentalness
        type: PropertyValue
        value: 0
      additional property: Liveness
        type: PropertyValue
        value: 0.302
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.29
      additional property: Loudness (dB)
        type: PropertyValue
        value: -6.439
      additional property: Key Name
        type: PropertyValue
        value: D
      additional property: Mode Name
        type: PropertyValue
        value: Major
album: Get on Me
  type: MusicAlbum
  date published: 2025-06-27