Projeto Mandrake
type: MusicGroup
popularity: 5
followers: 9
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x2726d703d8d183ce7f3ecff8e43600a00cf0de37bc596485495d71132d5dc533
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953972
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953972
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/2ae2ff10-4984-400e-b4ed-7fce78412dfb.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/2ae2ff10-4984-400e-b4ed-7fce78412dfb.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/2ae2ff10-4984-400e-b4ed-7fce78412dfb
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-16T16:31:10Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x2726d703d8d183ce7f3ecff8e43600a00cf0de37bc596485495d71132d5dc533","name":"Projeto Mandrake","registered_at":"2026-06-16T04:26:51Z","symbol":"NIM0937103","token_address":"0x5e7bb1afa911c6f570350215f4461c5b96b40aaa","type":"artist","uuid":"2ae2ff10-4984-400e-b4ed-7fce78412dfb"}
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 0x2726d703d8d183ce7f3ecff8e43600a00cf0de37bc596485495d71132d5dc533. Chain 2 (Bitcoin): anchored in block 953972 (2026-06-16T16:31:10Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/2ae2ff10-4984-400e-b4ed-7fce78412dfb.json and https://artists.proofprofile.net/proofs/artist/2ae2ff10-4984-400e-b4ed-7fce78412dfb.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-16T16:31:10Z
  text: {"copyright_id":"0x2726d703d8d183ce7f3ecff8e43600a00cf0de37bc596485495d71132d5dc533","name":"Projeto Mandrake","registered_at":"2026-06-16T04:26:51Z","symbol":"NIM0937103","token_address":"0x5e7bb1afa911c6f570350215f4461c5b96b40aaa","type":"artist","uuid":"2ae2ff10-4984-400e-b4ed-7fce78412dfb"}
track: Set das Crianças
  type: MusicRecording
  duration: PT2M46S
  duration ms: 166153
  explicit: false
  by artist: MINI BOIADEIRA
  by artist: Carolina Ferreira
  by artist: MC Lorenzo
  by artist: loreninha
  by artist: Projeto Mandrake
  by artist: Zé Pequeno
  in album: Set das Crianças
    type: MusicAlbum
    date published: 2024-10-12
  isrc code: BXWCK2400039
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-06-20T06:22:08+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0xeb259a7ce051b6241e61f549b42b2ac040b60bc5f1d1e2686e8f70e0094a0b6d
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 956302
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/956302
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/BXWCK2400039
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-02T03:30:09Z
  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 0xeb259a7ce051b6241e61f549b42b2ac040b60bc5f1d1e2686e8f70e0094a0b6d. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/BXWCK2400039.
    date published: 2026-07-02T03:30:09Z
  audio: Set das Crianças
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 138.372
    additional property: Musical Key
      type: PropertyValue
      value: 0
    additional property: Mode (Major/Minor)
      type: PropertyValue
      value: 1
    additional property: Time Signature
      type: PropertyValue
      value: 5
    additional property: Danceability
      type: PropertyValue
      value: 0.874
    additional property: Energy
      type: PropertyValue
      value: 0.477
    additional property: Speechiness
      type: PropertyValue
      value: 0.132
    additional property: Acousticness
      type: PropertyValue
      value: 0.618
    additional property: Instrumentalness
      type: PropertyValue
      value: 0
    additional property: Liveness
      type: PropertyValue
      value: 0.091
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.718
    additional property: Loudness (dB)
      type: PropertyValue
      value: -9.017
    additional property: Key Name
      type: PropertyValue
      value: C
    additional property: Mode Name
      type: PropertyValue
      value: Major