Professor Pupunha
type: MusicGroup
popularity: 5
followers: 53
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x1e74cc1621ef4f0cdc9da9c2c054bc652898925a017c53a7f72d4ff6f25eb502
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/b0cb137c-8ae2-4cd9-b528-e97dc2b0324d.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/b0cb137c-8ae2-4cd9-b528-e97dc2b0324d.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/b0cb137c-8ae2-4cd9-b528-e97dc2b0324d
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-20T14:36:29Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x1e74cc1621ef4f0cdc9da9c2c054bc652898925a017c53a7f72d4ff6f25eb502","name":"Professor Pupunha","registered_at":"2026-06-20T11:47:00Z","symbol":"NIM1608132","token_address":"0xd64da68ab8ab27eb8d990b99d09591e58d7ecb0c","type":"artist","uuid":"b0cb137c-8ae2-4cd9-b528-e97dc2b0324d"}
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 0x1e74cc1621ef4f0cdc9da9c2c054bc652898925a017c53a7f72d4ff6f25eb502. 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/b0cb137c-8ae2-4cd9-b528-e97dc2b0324d.json and https://artists.proofprofile.net/proofs/artist/b0cb137c-8ae2-4cd9-b528-e97dc2b0324d.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-20T14:36:29Z
  text: {"copyright_id":"0x1e74cc1621ef4f0cdc9da9c2c054bc652898925a017c53a7f72d4ff6f25eb502","name":"Professor Pupunha","registered_at":"2026-06-20T11:47:00Z","symbol":"NIM1608132","token_address":"0xd64da68ab8ab27eb8d990b99d09591e58d7ecb0c","type":"artist","uuid":"b0cb137c-8ae2-4cd9-b528-e97dc2b0324d"}
album: Casa de barro Instrutor Pupunha Abadá Capoeira
  type: MusicAlbum
  date published: 2022-01-14
  track: Casa de barro Instrutor Pupunha Abadá Capoeira
    type: MusicRecording
    duration: PT2M39S
    duration ms: 159103
    explicit: false
    by artist: Professor Pupunha
    in album: Casa de barro Instrutor Pupunha Abadá Capoeira
      type: MusicAlbum
      date published: 2022-01-14
    isrc code: US3DF2201260
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-04T06:52:13+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x7c63eff08699bd40addad1efd6033b1bc814fc0a5cb6e6b69455a0922b549689
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 956634
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/956634
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/US3DF2201260
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-04T10:04:33Z
    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 0x7c63eff08699bd40addad1efd6033b1bc814fc0a5cb6e6b69455a0922b549689. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/US3DF2201260.
      date published: 2026-07-04T10:04:33Z
    audio: Casa de barro Instrutor Pupunha Abadá Capoeira
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 73.68
      additional property: Musical Key
        type: PropertyValue
        value: 7
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 1
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.748
      additional property: Energy
        type: PropertyValue
        value: 0.84
      additional property: Speechiness
        type: PropertyValue
        value: 0.21
      additional property: Acousticness
        type: PropertyValue
        value: 0.785
      additional property: Instrumentalness
        type: PropertyValue
        value: 0
      additional property: Liveness
        type: PropertyValue
        value: 0.293
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.9
      additional property: Loudness (dB)
        type: PropertyValue
        value: -6.918
      additional property: Key Name
        type: PropertyValue
        value: G
      additional property: Mode Name
        type: PropertyValue
        value: Major