Roberto Cantero
type: MusicGroup
popularity: 4
followers: 212
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additional property: CopyrightChainExplorerURL
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additional property: OTSBitcoinBlock
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additional property: OTSBitcoinBlockVerifyURL
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additional property: OTSProofURL
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  value: https://artists.proofprofile.net/proofs/artist/6863cc69-9aeb-48e6-a29a-4ab8b8a9f42d.ots
additional property: OTSRecordURL
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  value: https://artists.proofprofile.net/proofs/artist/6863cc69-9aeb-48e6-a29a-4ab8b8a9f42d.json
additional property: OTSVerificationAPI
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additional property: OTSTimestamp
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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 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
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  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa607478de8e1c5dd3a600ab44f9df1be98707ded5dad7306eeb4de6f8a176d98. Chain 2 (Bitcoin): anchored in block 954066 (2026-06-17T08:11:48Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/6863cc69-9aeb-48e6-a29a-4ab8b8a9f42d.json and https://artists.proofprofile.net/proofs/artist/6863cc69-9aeb-48e6-a29a-4ab8b8a9f42d.ots, the client at https://opentimestamps.org runs `ots verify -f record.json proof.ots`.
  date published: 2026-06-17T08:11:48Z
  text: {"copyright_id":"0xa607478de8e1c5dd3a600ab44f9df1be98707ded5dad7306eeb4de6f8a176d98","name":"Roberto Cantero","registered_at":"2026-06-17T02:00:29Z","symbol":"NIM1245803","token_address":"0xbe8b6ffe43e2e008c1813923263f569f3fcd944c","type":"artist","uuid":"6863cc69-9aeb-48e6-a29a-4ab8b8a9f42d"}
album: Funkmenco Sessions
  type: MusicAlbum
  date published: 2017-03-19
album: Grazz
  type: MusicAlbum
  date published: 2018-11-23
album: Funkmenco Sessions
  type: MusicAlbum
  date published: 2019-05-10
album: Grazz
  type: MusicAlbum
  date published: 2019-05-10
album: Maestro Guerrero
  type: MusicAlbum
  date published: 2020-12-03
album: It Could Happen to You
  type: MusicAlbum
  date published: 2020-12-03
album: Creencia
  type: MusicAlbum
  date published: 2021-02-12
album: Quiero saber (Version flamenco jazz)
  type: MusicAlbum
  date published: 2022-12-02
album: Bocaná
  type: MusicAlbum
  date published: 2023-12-22
album: Roberto Cantero Big Band En La Orilla De Mis Lágrimas
  type: MusicAlbum
  date published: 2024-04-26
album: Maestro Guerrero (Sceno Remix)
  type: MusicAlbum
  date published: 2025-02-18
track: Cántale
  type: MusicRecording
  duration: PT3M39S
  duration ms: 219614
  explicit: false
  by artist: Shabu
  by artist: Rayka
  by artist: Roberto Cantero
  by artist: Carlos Keysie
  in album: Cántale
    type: MusicAlbum
    date published: 2023-11-03
  isrc code: UKXN22370143
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  additional property: CopyrightStatus
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    value: registered
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    value: 2026-07-07T14:38:49+00:00
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    value: https://explorer.copyrightchains.com/tx/0x92d34e4872da96e12d1a450913f204f875004b8b9a9f3255139277f990827466
  additional property: OTSHash
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    value: 957118
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    type: PropertyValue
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  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/UKXN22370143
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-08T03:20:19Z
  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 0x92d34e4872da96e12d1a450913f204f875004b8b9a9f3255139277f990827466. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/UKXN22370143 — a six-check JSON result.
    date published: 2026-07-08T03:20:19Z
  audio: Cántale
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 110.416
    additional property: Musical Key
      type: PropertyValue
      value: 4
    additional property: Mode (Major/Minor)
      type: PropertyValue
      value: 0
    additional property: Time Signature
      type: PropertyValue
      value: 5
    additional property: Danceability
      type: PropertyValue
      value: 0.529
    additional property: Energy
      type: PropertyValue
      value: 0.932
    additional property: Speechiness
      type: PropertyValue
      value: 0.096
    additional property: Acousticness
      type: PropertyValue
      value: 0.089
    additional property: Instrumentalness
      type: PropertyValue
      value: 0.001
    additional property: Liveness
      type: PropertyValue
      value: 0.221
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.478
    additional property: Loudness (dB)
      type: PropertyValue
      value: -8.831
    additional property: Key Name
      type: PropertyValue
      value: E
    additional property: Mode Name
      type: PropertyValue
      value: Minor
track: El Vaivén - En Directo
  type: MusicRecording
  duration: PT7M23S
  duration ms: 443453
  explicit: false
  by artist: Chambao
  by artist: Roberto Cantero
  by artist: Toni Romero
  in album: De Chambao a la Mari: Último Concierto
    type: MusicAlbum
    date published: 2018-06-22
  isrc code: ES71G1840310
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
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  additional property: OTSBitcoinBlock
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  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ES71G1840310
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-30T00:39:11Z
  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 0xe5e649d6866ef066555e5a8ed495e698c2fc592157cba424cc18ecfad7061b6f. Chain 2 (Bitcoin): anchored in block 960179 (2026-07-30T00:39:11Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ES71G1840310 — a six-check JSON result.
    date published: 2026-07-30T00:39:11Z
  audio: El Vaivén - En Directo
track: Miedo por Dentro - En Directo

El Vaivén - En Directo
type: AudioObject
additional property: Tempo (BPM)
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  value: 100.276
additional property: Musical Key
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additional property: Mode (Major/Minor)
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additional property: Time Signature
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  value: 5
additional property: Danceability
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  value: 0.418
additional property: Energy
  type: PropertyValue
  value: 0.393
additional property: Speechiness
  type: PropertyValue
  value: 0.1
additional property: Acousticness
  type: PropertyValue
  value: 0.884
additional property: Instrumentalness
  type: PropertyValue
  value: 0
additional property: Liveness
  type: PropertyValue
  value: 0.73
additional property: Valence (Positivity)
  type: PropertyValue
  value: 0.474
additional property: Loudness (dB)
  type: PropertyValue
  value: -14.872
additional property: Key Name
  type: PropertyValue
  value: D
additional property: Mode Name
  type: PropertyValue
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Miedo por Dentro - En Directo
type: MusicRecording
duration: PT4M8S
duration ms: 248453
explicit: false
by artist: Chambao
by artist: Mario Diaz
by artist: Roberto Cantero
by artist: Toni Romero
in album: De Chambao a la Mari: Último Concierto
  type: MusicAlbum
  date published: 2018-06-22
isrc code: ES71G1840311
additional property: CopyrightID
additional property: CopyrightStatus
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additional property: CopyrightRegisteredAt
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  value: 2026-07-06T18:53:27+00:00
additional property: CopyrightChainExplorerURL
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additional property: OTSHash
additional property: OTSBitcoinBlock
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additional property: OTSVerificationAPI
  type: PropertyValue
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additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-08T03:20:19Z
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 0x30bb1abdbf1210ef31b935c1a35373e6221c4f61885f7d99e4c12491f5466285. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ES71G1840311 — a six-check JSON result.
  date published: 2026-07-08T03:20:19Z
audio: Miedo por Dentro - En Directo
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  additional property: Tempo (BPM)
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  additional property: Musical Key
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  additional property: Mode (Major/Minor)
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  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.353
  additional property: Energy
    type: PropertyValue
    value: 0.642
  additional property: Speechiness
    type: PropertyValue
    value: 0.179
  additional property: Acousticness
    type: PropertyValue
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  additional property: Instrumentalness
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  additional property: Liveness
    type: PropertyValue
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  additional property: Valence (Positivity)
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    value: 0.37
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