Nader Cabezas
type: MusicGroup
popularity: 9
followers: 1170
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x9e0ac61c89b243ffa5974350f869cf157ad99136dc17a3dad850d2ca8177575d
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954553
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954553
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/ad507797-ce24-4bac-a8a9-499161fd3c3a.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/ad507797-ce24-4bac-a8a9-499161fd3c3a.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/ad507797-ce24-4bac-a8a9-499161fd3c3a
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-20T11:51:30Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x9e0ac61c89b243ffa5974350f869cf157ad99136dc17a3dad850d2ca8177575d","name":"Nader Cabezas","registered_at":"2026-06-20T10:08:18Z","symbol":"NIM1588778","token_address":"0xcfca0525a962914009fcc3858f225f218d95d87b","type":"artist","uuid":"ad507797-ce24-4bac-a8a9-499161fd3c3a"}
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 0x9e0ac61c89b243ffa5974350f869cf157ad99136dc17a3dad850d2ca8177575d. Chain 2 (Bitcoin): anchored in block 954553 (2026-06-20T11:51:30Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/ad507797-ce24-4bac-a8a9-499161fd3c3a.json and https://artists.proofprofile.net/proofs/artist/ad507797-ce24-4bac-a8a9-499161fd3c3a.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-20T11:51:30Z
  text: {"copyright_id":"0x9e0ac61c89b243ffa5974350f869cf157ad99136dc17a3dad850d2ca8177575d","name":"Nader Cabezas","registered_at":"2026-06-20T10:08:18Z","symbol":"NIM1588778","token_address":"0xcfca0525a962914009fcc3858f225f218d95d87b","type":"artist","uuid":"ad507797-ce24-4bac-a8a9-499161fd3c3a"}
album: Día Blanco
  type: MusicAlbum
  date published: 2009-12-26
album: Caminos, Barrios y Gente
  type: MusicAlbum
  date published: 2011-01-22
  track: Perros Tras la Puerta
    type: MusicRecording
    duration: PT3M8S
    duration ms: 188831
    explicit: false
    by artist: Nader Cabezas
    in album: Caminos, Barrios y Gente
      type: MusicAlbum
      date published: 2011-01-22
    isrc code: USHM22117428
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-21T01:24:42+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x75d68ab2bfbb15081b4c21d1728a7a2bf2117edf24948a6a348f14edc5cb5ea7
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 958951
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/958951
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USHM22117428
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-21T04:27:13Z
    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 0x75d68ab2bfbb15081b4c21d1728a7a2bf2117edf24948a6a348f14edc5cb5ea7. Chain 2 (Bitcoin): anchored in block 958951 (2026-07-21T04:27:13Z), 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/USHM22117428.
      date published: 2026-07-21T04:27:13Z
    audio: Perros Tras la Puerta
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 149.96
      additional property: Musical Key
        type: PropertyValue
        value: 7
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 0
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.481
      additional property: Energy
        type: PropertyValue
        value: 0.82
      additional property: Speechiness
        type: PropertyValue
        value: 0.03
      additional property: Acousticness
        type: PropertyValue
        value: 0.001
      additional property: Instrumentalness
        type: PropertyValue
        value: 0.035
      additional property: Liveness
        type: PropertyValue
        value: 0.065
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.877
      additional property: Loudness (dB)
        type: PropertyValue
        value: -6.431
      additional property: Key Name
        type: PropertyValue
        value: G
      additional property: Mode Name
        type: PropertyValue
        value: Minor
album: El Hijo del Monstruo
  type: MusicAlbum
  date published: 2012-06-02
album: El Hijo del Monstruo
  type: MusicAlbum
  date published: 2012-06-02
album: Esfinges
  type: MusicAlbum
  date published: 2015-10-05
album: Rocket Cinema
  type: MusicAlbum
  date published: 2015-11-10
album: Junio 82
  type: MusicAlbum
  date published: 2016-10-19
album: Siguiendo una Sombra
  type: MusicAlbum
  date published: 2018-01-01
album: Sin Pensarlo Bien
  type: MusicAlbum
  date published: 2021-06-21
  track: Cuchillo en el Agua
    type: MusicRecording
    duration: PT3M47S
    duration ms: 227165
    explicit: false
    by artist: Nader Cabezas
    in album: Sin Pensarlo Bien
      type: MusicAlbum
      date published: 2021-06-21
    isrc code: USHM82103077
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-04T15:31:33+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0xcb56a41884bca25912321a797b295a2ea2a1bd4a001a4d1a0a96971e66314bae
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 956728
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/956728
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USHM82103077
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-05T01:43:49Z
    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
    subject of: OpenTimestamps Proof of Existence
      type: DigitalDocument
      encoding format: application/vnd.opentimestamps.ots
      description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcb56a41884bca25912321a797b295a2ea2a1bd4a001a4d1a0a96971e66314bae. Chain 2 (Bitcoin): anchored in block 956728 (2026-07-05T01:43:49Z), 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/USHM82103077.
      date published: 2026-07-05T01:43:49Z
    audio: Cuchillo en el Agua
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 140.968
      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
      additional property: Energy
      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
album: Una Letalidad Constante
album: Dormir y olvidar
album: Solo una Cara
album: En Círculos
album: En Cada Grieta
album: Opus

Danceability
type: PropertyValue
value: 0.71

Energy
type: PropertyValue
value: 0.588

Speechiness
type: PropertyValue
value: 0.031

Acousticness
type: PropertyValue
value: 0.196

Instrumentalness
type: PropertyValue
value: 0.826

Liveness
type: PropertyValue
value: 0.153

Valence (Positivity)
type: PropertyValue
value: 0.741

Loudness (dB)
type: PropertyValue
value: -8.916

Key Name
type: PropertyValue
value: A

Mode Name
type: PropertyValue
value: Minor

Una Letalidad Constante
type: MusicAlbum
date published: 2022-01-03

Una Letalidad Constante
type: MusicAlbum
date published: 2022-01-03

Dormir y olvidar
type: MusicAlbum
date published: 2023-03-31

Solo una Cara
type: MusicAlbum
date published: 2023-04-28

En Círculos
type: MusicAlbum
date published: 2023-06-02

En Cada Grieta
type: MusicAlbum
date published: 2024-01-05

Opus
type: MusicAlbum
date published: 2024-07-05