Joao Das Nieves
type: MusicGroup
popularity: 35
followers: 1156
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x011353a39061b34364479c185d8abd9ed3df616da208f3b3a98b33c555c9d0ee
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953407
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953407
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/91f613c4-d88b-4285-aeb5-63b8291c9569.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/91f613c4-d88b-4285-aeb5-63b8291c9569.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/91f613c4-d88b-4285-aeb5-63b8291c9569
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-12T19:24:56Z
additional property: OTSCanonicalRecord
  type: PropertyValue
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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 0x011353a39061b34364479c185d8abd9ed3df616da208f3b3a98b33c555c9d0ee. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/91f613c4-d88b-4285-aeb5-63b8291c9569.json and https://artists.proofprofile.net/proofs/artist/91f613c4-d88b-4285-aeb5-63b8291c9569.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-12T19:28:13Z
  text: {"copyright_id":"0x011353a39061b34364479c185d8abd9ed3df616da208f3b3a98b33c555c9d0ee","name":"Joao Das Nieves","registered_at":"2026-06-12T04:31:57Z","symbol":"NIM0187711","token_address":"0x6bc619a0576200b574a2813d64c893094f80512a","type":"artist","uuid":"91f613c4-d88b-4285-aeb5-63b8291c9569"}
album: Assim Voce Me Mata!
  type: MusicAlbum
  date published: 2013-06-11
album: Brasil Top Bailable
  type: MusicAlbum
  date published: 2013-06-12
album: Brasil Top Bailable
  type: MusicAlbum
  date published: 2013-06-12
album: Brasil Top Bailable
  type: MusicAlbum
  date published: 2013-06-12
  track: Ai Se Eu Te Pego - Nossa Nossa
    type: MusicRecording
    duration: PT2M47S
    duration ms: 167000
    explicit: false
    by artist: Joao Das Nieves
    in album: Brasil Top Bailable
      type: MusicAlbum
      date published: 2013-06-12
    isrc code: QMVRR1200092
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-19T18:11:14+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x649198b7bc18106e884121a2e14ca693ab0de968d3af7eee0dc020f875447c2a
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 958770
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/958770
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QMVRR1200092
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-19T21:09:02Z
    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 0x649198b7bc18106e884121a2e14ca693ab0de968d3af7eee0dc020f875447c2a. Chain 2 (Bitcoin): anchored in block 958770 (2026-07-19T21:09:02Z), 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/QMVRR1200092.
      date published: 2026-07-19T21:09:02Z
    audio: Ai Se Eu Te Pego - Nossa Nossa
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 95.997
      additional property: Musical Key
        type: PropertyValue
        value: 11
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 1
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.681
      additional property: Energy
        type: PropertyValue
        value: 0.821
      additional property: Speechiness
        type: PropertyValue
        value: 0.045
      additional property: Acousticness
        type: PropertyValue
        value: 0.087
      additional property: Instrumentalness
        type: PropertyValue
        value: 0
      additional property: Liveness
        type: PropertyValue
        value: 0.483
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.818
      additional property: Loudness (dB)
        type: PropertyValue
        value: -7.274
      additional property: Key Name
        type: PropertyValue
        value: B
      additional property: Mode Name
        type: PropertyValue
        value: Major
  track: Balada - Tchê Tcherere Tchê Tchê
    type: MusicRecording
    duration: PT3M24S
    duration ms: 204000
    explicit: false
    by artist: Joao Das Nieves
    in album: Brasil Top Bailable
      type: MusicAlbum
      date published: 2013-06-12
    isrc code: QMVRR1203741
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
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      type: PropertyValue
      value: 2026-07-03T04:15:56+00:00
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      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x7b3c6e19d8930473dbca20075e71e65f03fb2af8e3dc0d05203ec03b8991dc7e
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
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    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/956474
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QMVRR1203741
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-03T08:56:35Z
    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 0x7b3c6e19d8930473dbca20075e71e65f03fb2af8e3dc0d05203ec03b8991dc7e. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/QMVRR1203741.
      date published: 2026-07-03T08:56:35Z
    audio: Balada - Tchê Tcherere Tchê Tchê
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 128.018
      additional property: Musical Key
        type: PropertyValue
        value: 2
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 1
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.703
      additional property: Energy
        type: PropertyValue
        value: 0.896
      additional property: Speechiness
        type: PropertyValue
        value: 0.04
      additional property: Acousticness
        type: PropertyValue
        value: 0.069
      additional property: Instrumentalness
        type: PropertyValue
        value: 0
      additional property: Liveness
      additional property: Valence (Positivity)
      additional property: Loudness (dB)
      additional property: Key Name
      additional property: Mode Name
album: Be Ready for World Cup Brazil 2014
album: Be Ready For World Cup Brazil 2014

Liveness
type: PropertyValue
value: 0.633

Valence (Positivity)
type: PropertyValue
value: 0.943

Loudness (dB)
type: PropertyValue
value: -6.811

Key Name
type: PropertyValue
value: D

Mode Name
type: PropertyValue
value: Major

Be Ready for World Cup Brazil 2014
type: MusicAlbum
date published: 2014-01-01
track: Pra Frente Brasil
  type: MusicRecording
  duration: PT2M39S
  duration ms: 159000
  explicit: false
  by artist: Joao Das Nieves
  in album: Be Ready for World Cup Brazil 2014
    type: MusicAlbum
    date published: 2014-01-01
  isrc code: QMVRR1302200
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-21T07:48:54+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x0c78840efe289ee2bd8feabfd62963cfee2e15eca088e63e26015f4b57956578
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 958987
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/958987
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QMVRR1302200
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-21T10:50:15Z
  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 0x0c78840efe289ee2bd8feabfd62963cfee2e15eca088e63e26015f4b57956578. Chain 2 (Bitcoin): anchored in block 958987 (2026-07-21T10:50:15Z), 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/QMVRR1302200.
    date published: 2026-07-21T10:50:15Z
  audio: Pra Frente Brasil
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 130.101
    additional property: Musical Key
      type: PropertyValue
      value: 0
    additional property: Mode (Major/Minor)
      type: PropertyValue
      value: 0
    additional property: Time Signature
      type: PropertyValue
      value: 4
    additional property: Danceability
      type: PropertyValue
      value: 0.579
    additional property: Energy
      type: PropertyValue
      value: 0.847
    additional property: Speechiness
      type: PropertyValue
      value: 0.07
    additional property: Acousticness
      type: PropertyValue
      value: 0.144
    additional property: Instrumentalness
      type: PropertyValue
      value: 0
    additional property: Liveness
      type: PropertyValue
      value: 0.365
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.584
    additional property: Loudness (dB)
      type: PropertyValue
      value: -7.53
    additional property: Key Name
      type: PropertyValue
      value: C
    additional property: Mode Name
      type: PropertyValue
      value: Minor

Be Ready For World Cup Brazil 2014
type: MusicAlbum
date published: 2014-03-25