Mc 20
type: MusicGroup
genre: fado
genre: funk de bh
popularity: 16
followers: 1846
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x6b01b09fa3409c03f7d067b3cb3a274d475db14202beb9781003aea6bffa4364
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953704
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953704
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/79bf0e5a-dd77-41de-bcc8-88cf9679b7f3.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/79bf0e5a-dd77-41de-bcc8-88cf9679b7f3.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/79bf0e5a-dd77-41de-bcc8-88cf9679b7f3
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-14T22:58:38Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x6b01b09fa3409c03f7d067b3cb3a274d475db14202beb9781003aea6bffa4364","name":"Mc 20","registered_at":"2026-06-14T17:16:39Z","symbol":"NIM0521789","token_address":"0x63d0b3bb49ddb9de0b8bee1e7a144da1b914611b","type":"artist","uuid":"79bf0e5a-dd77-41de-bcc8-88cf9679b7f3"}
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 0x6b01b09fa3409c03f7d067b3cb3a274d475db14202beb9781003aea6bffa4364. Chain 2 (Bitcoin): anchored in block 953704 (2026-06-14T22:58:38Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/79bf0e5a-dd77-41de-bcc8-88cf9679b7f3.json and https://artists.proofprofile.net/proofs/artist/79bf0e5a-dd77-41de-bcc8-88cf9679b7f3.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-14T22:58:38Z
  text: {"copyright_id":"0x6b01b09fa3409c03f7d067b3cb3a274d475db14202beb9781003aea6bffa4364","name":"Mc 20","registered_at":"2026-06-14T17:16:39Z","symbol":"NIM0521789","token_address":"0x63d0b3bb49ddb9de0b8bee1e7a144da1b914611b","type":"artist","uuid":"79bf0e5a-dd77-41de-bcc8-88cf9679b7f3"}
album: Ta Tudo Fluindo
  type: MusicAlbum
  date published: 2023-04-21
  track: Ta Tudo Fluindo
    type: MusicRecording
    duration: PT2M18S
    duration ms: 138382
    explicit: true
    by artist: Mc 20
    in album: Ta Tudo Fluindo
      type: MusicAlbum
      date published: 2023-04-21
    genre: fado
    genre: funk de bh
    isrc code: BCVSN2300002
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-15T18:11:34+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x27c61f03154362a4e9d38f82f65691661563df07581b16fc1e6a277192cd2301
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 958194
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/958194
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/BCVSN2300002
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-15T20:32:27Z
    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 0x27c61f03154362a4e9d38f82f65691661563df07581b16fc1e6a277192cd2301. Chain 2 (Bitcoin): anchored in block 958194 (2026-07-15T20:32:27Z), 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/BCVSN2300002.
      date published: 2026-07-15T20:32:27Z
    audio: Ta Tudo Fluindo
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 131.003
      additional property: Musical Key
        type: PropertyValue
        value: 9
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 0
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.816
      additional property: Energy
        type: PropertyValue
        value: 0.71
      additional property: Speechiness
        type: PropertyValue
        value: 0.078
      additional property: Acousticness
        type: PropertyValue
        value: 0.628
      additional property: Instrumentalness
        type: PropertyValue
        value: 0
      additional property: Liveness
        type: PropertyValue
        value: 0.097
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.674
      additional property: Loudness (dB)
        type: PropertyValue
        value: -5.666
      additional property: Key Name
        type: PropertyValue
        value: A
      additional property: Mode Name
        type: PropertyValue
        value: Minor