Arthur Carvalho.
type: MusicGroup
popularity: 6
followers: 360
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x4af2520a5a22a4d0067fc24b135738a7226f235ce8e0557cc4603ba7b791749b
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954569
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954569
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/b2bcfbbb-8024-4c6d-8aa2-e0116f1ff197.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/b2bcfbbb-8024-4c6d-8aa2-e0116f1ff197.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/b2bcfbbb-8024-4c6d-8aa2-e0116f1ff197
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-20T14:36:29Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x4af2520a5a22a4d0067fc24b135738a7226f235ce8e0557cc4603ba7b791749b","name":"Arthur Carvalho.","registered_at":"2026-06-20T12:46:08Z","symbol":"NIM1615625","token_address":"0x600e4c756813d0bbe2286784fea292d70bd8d982","type":"artist","uuid":"b2bcfbbb-8024-4c6d-8aa2-e0116f1ff197"}
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 0x4af2520a5a22a4d0067fc24b135738a7226f235ce8e0557cc4603ba7b791749b. Chain 2 (Bitcoin): anchored in block 954569 (2026-06-20T14:36:29Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/b2bcfbbb-8024-4c6d-8aa2-e0116f1ff197.json and https://artists.proofprofile.net/proofs/artist/b2bcfbbb-8024-4c6d-8aa2-e0116f1ff197.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-20T14:36:29Z
  text: {"copyright_id":"0x4af2520a5a22a4d0067fc24b135738a7226f235ce8e0557cc4603ba7b791749b","name":"Arthur Carvalho.","registered_at":"2026-06-20T12:46:08Z","symbol":"NIM1615625","token_address":"0x600e4c756813d0bbe2286784fea292d70bd8d982","type":"artist","uuid":"b2bcfbbb-8024-4c6d-8aa2-e0116f1ff197"}
album: Me Ama ( ao vivo)
  type: MusicAlbum
  date published: 2024-10-14
  track: Me Ama ( ao vivo)
    type: MusicRecording
    duration: PT9M25S
    duration ms: 565986
    explicit: false
    by artist: Arthur Carvalho.
    in album: Me Ama ( ao vivo)
      type: MusicAlbum
      date published: 2024-10-14
    isrc code: BXIRZ2100016
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-12T23:12:05+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x234a2c036ee7f2390048e39e800ac0bcba88be3ef593177212e783930981a1e1
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 957772
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/957772
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/BXIRZ2100016
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-12T23:31:17Z
    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 0x234a2c036ee7f2390048e39e800ac0bcba88be3ef593177212e783930981a1e1. Chain 2 (Bitcoin): anchored in block 957772 (2026-07-12T23:31:17Z), 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/BXIRZ2100016.
      date published: 2026-07-12T23:31:17Z
    audio: Me Ama ( ao vivo)
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 81.798
      additional property: Musical Key
        type: PropertyValue
        value: 0
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 1
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.147
      additional property: Energy
        type: PropertyValue
        value: 0.458
      additional property: Speechiness
        type: PropertyValue
        value: 0.037
      additional property: Acousticness
        type: PropertyValue
        value: 0.052
      additional property: Instrumentalness
        type: PropertyValue
        value: 0
      additional property: Liveness
        type: PropertyValue
        value: 0.146
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.138
      additional property: Loudness (dB)
        type: PropertyValue
        value: -11.052
      additional property: Key Name
        type: PropertyValue
        value: C
      additional property: Mode Name
        type: PropertyValue
        value: Major