Johnny MC
type: MusicGroup
genre: brazilian hip hop
popularity: 3
followers: 120
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x506ca0280a83985684c601ba063bd17fa6a80210103fe5ce7de76e47557a8bd2
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954050
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954050
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/42a04fe3-1926-4ea2-9cc3-9ad93e14c94c.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/42a04fe3-1926-4ea2-9cc3-9ad93e14c94c.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/42a04fe3-1926-4ea2-9cc3-9ad93e14c94c
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-17T05:14:33Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x506ca0280a83985684c601ba063bd17fa6a80210103fe5ce7de76e47557a8bd2","name":"Johnny MC","registered_at":"2026-06-16T12:47:53Z","symbol":"NIM1056697","token_address":"0xe0712ce52169fdc999f2140e24ffbaa0d79611cd","type":"artist","uuid":"42a04fe3-1926-4ea2-9cc3-9ad93e14c94c"}
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 0x506ca0280a83985684c601ba063bd17fa6a80210103fe5ce7de76e47557a8bd2. Chain 2 (Bitcoin): anchored in block 954050 (2026-06-17T05:14:33Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/42a04fe3-1926-4ea2-9cc3-9ad93e14c94c.json and https://artists.proofprofile.net/proofs/artist/42a04fe3-1926-4ea2-9cc3-9ad93e14c94c.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-17T05:14:33Z
  text: {"copyright_id":"0x506ca0280a83985684c601ba063bd17fa6a80210103fe5ce7de76e47557a8bd2","name":"Johnny MC","registered_at":"2026-06-16T12:47:53Z","symbol":"NIM1056697","token_address":"0xe0712ce52169fdc999f2140e24ffbaa0d79611cd","type":"artist","uuid":"42a04fe3-1926-4ea2-9cc3-9ad93e14c94c"}
album: Soul Rap de Raiz
  type: MusicAlbum
  date published: 2019-03-08
album: Soul Rap de Raiz
  type: MusicAlbum
  date published: 2019-03-08
track: Desconforto - Live
  type: MusicRecording
  duration: PT4M51S
  duration ms: 291586
  explicit: false
  by artist: Zélia Duncan
  by artist: Rappin' Hood
  by artist: DJ Marco
  by artist: Johnny MC
  in album: Sortimento Vivo
    type: MusicAlbum
    date published: 2002-01-01
  genre: nova-mpb
  genre: mpb
  genre: brazilian-pop
  isrc code: BRMCA0200446
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-30T04:53:05+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x45a95b10f0a4bddc5256d88700e72ac7b6ad6a825fdb798bf16e0b7cf14ba863
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 960209
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/960209
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/BRMCA0200446
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-30T05:15:54Z
  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 0x45a95b10f0a4bddc5256d88700e72ac7b6ad6a825fdb798bf16e0b7cf14ba863. Chain 2 (Bitcoin): anchored in block 960209 (2026-07-30T05:15:54Z), 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/BRMCA0200446.
    date published: 2026-07-30T05:15:54Z
  audio: Desconforto - Live
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 147.186
    additional property: Musical Key
      type: PropertyValue
      value: 7
    additional property: Mode (Major/Minor)
      type: PropertyValue
      value: 1
    additional property: Time Signature
      type: PropertyValue
      value: 5
    additional property: Danceability
      type: PropertyValue
      value: 0.698
    additional property: Energy
      type: PropertyValue
      value: 0.651
    additional property: Speechiness
      type: PropertyValue
      value: 0.164
    additional property: Acousticness
      type: PropertyValue
      value: 0.396
    additional property: Instrumentalness
      type: PropertyValue
      value: 0
    additional property: Liveness
      type: PropertyValue
      value: 0.987
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.683
    additional property: Loudness (dB)
      type: PropertyValue
      value: -14.04
    additional property: Key Name
      type: PropertyValue
      value: G
    additional property: Mode Name
      type: PropertyValue
      value: Major
track: Desconforto / Incidental: Irritação - Medley
  type: MusicRecording
  duration: PT4M9S
  duration ms: 249226
  explicit: false
  by artist: Zélia Duncan
  by artist: Johnny MC
  by artist: Rappin' Hood
  in album: Sortimento
    type: MusicAlbum
    date published: 2001-11-05
  genre: nova-mpb
  genre: mpb
  genre: brazilian-pop
  isrc code: BRMCA0100065
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-06T05:22:04+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0xf90fd69634156326c215c1ecc0984992a4d371655c435a8a8ba31ca371cd0ab5
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 956889
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/956889
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/BRMCA0100065
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-06T06:56:49Z
  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 0xf90fd69634156326c215c1ecc0984992a4d371655c435a8a8ba31ca371cd0ab5. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/BRMCA0100065.
    date published: 2026-07-06T06:56:49Z
  audio: Desconforto / Incidental: Irritação - Medley
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 147.187
    additional property: Musical Key
      type: PropertyValue
      value: 9
    additional property: Mode (Major/Minor)
      type: PropertyValue
      value: 0
    additional property: Time Signature
      type: PropertyValue
      value: 5
    additional property: Danceability
      type: PropertyValue
      value: 0.851
    additional property: Energy
      type: PropertyValue
      value: 0.736
    additional property: Speechiness
    additional property: Acousticness
    additional property: Instrumentalness
    additional property: Liveness
    additional property: Valence (Positivity)
    additional property: Loudness (dB)
    additional property: Key Name
    additional property: Mode Name
track: Sou Negrão 2

Speechiness
type: PropertyValue
value: 0.085

Acousticness
type: PropertyValue
value: 0.214

Instrumentalness
type: PropertyValue
value: 0

Liveness
type: PropertyValue
value: 0.405

Valence (Positivity)
type: PropertyValue
value: 0.877

Loudness (dB)
type: PropertyValue
value: -9.991

Key Name
type: PropertyValue
value: A

Mode Name
type: PropertyValue
value: Minor

Sou Negrão 2
type: MusicRecording
duration: PT5M28S
duration ms: 328855
explicit: false
by artist: Rappin' Hood
by artist: Johnny MC
by artist: Possemente Zulu
by artist: Body Brinho ADS
by artist: Aliados da Sul
by artist: DJ Luciano Rocha
in album: Sou Negrão 2
  type: MusicAlbum
  date published: 2021-11-19
genre: brazilian-hip-hop
isrc code: BRZDS2100012
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-07-31T03:04:42+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x91e4b783f20f2c7e3dc9af7ac94b9d41e7fe387f2e973d91c75fa4b212b54337
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 960340
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/960340
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/BRZDS2100012
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-31T03:15:04Z
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 0x91e4b783f20f2c7e3dc9af7ac94b9d41e7fe387f2e973d91c75fa4b212b54337. Chain 2 (Bitcoin): anchored in block 960340 (2026-07-31T03:15:04Z), 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/BRZDS2100012.
  date published: 2026-07-31T03:15:04Z
audio: Sou Negrão 2
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 108.515
  additional property: Musical Key
    type: PropertyValue
    value: 8
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 1
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.648
  additional property: Energy
    type: PropertyValue
    value: 0.537
  additional property: Speechiness
    type: PropertyValue
    value: 0.417
  additional property: Acousticness
    type: PropertyValue
    value: 0.21
  additional property: Instrumentalness
    type: PropertyValue
    value: 0
  additional property: Liveness
    type: PropertyValue
    value: 0.369
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.536
  additional property: Loudness (dB)
    type: PropertyValue
    value: -10.862
  additional property: Key Name
    type: PropertyValue
    value: Ab
  additional property: Mode Name
    type: PropertyValue
    value: Major