Que Tengo
type: MusicGroup
popularity: 7
followers: 876
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x004e894c9f81bd73babeee684a52113eb58fce35eb6c60b62defca652ad42695
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954066
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954066
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/5923b61b-3a3b-4d85-8a1c-9afcca7fbc11.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/5923b61b-3a3b-4d85-8a1c-9afcca7fbc11.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/5923b61b-3a3b-4d85-8a1c-9afcca7fbc11
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-17T08:11:48Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x004e894c9f81bd73babeee684a52113eb58fce35eb6c60b62defca652ad42695","name":"Que Tengo","registered_at":"2026-06-16T20:59:24Z","symbol":"NIM1173986","token_address":"0x730370c6d6dde079b7a16bdc63ea8144f2b3c1e9","type":"artist","uuid":"5923b61b-3a3b-4d85-8a1c-9afcca7fbc11"}
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 0x004e894c9f81bd73babeee684a52113eb58fce35eb6c60b62defca652ad42695. 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/5923b61b-3a3b-4d85-8a1c-9afcca7fbc11.json and https://artists.proofprofile.net/proofs/artist/5923b61b-3a3b-4d85-8a1c-9afcca7fbc11.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-17T08:11:48Z
  text: {"copyright_id":"0x004e894c9f81bd73babeee684a52113eb58fce35eb6c60b62defca652ad42695","name":"Que Tengo","registered_at":"2026-06-16T20:59:24Z","symbol":"NIM1173986","token_address":"0x730370c6d6dde079b7a16bdc63ea8144f2b3c1e9","type":"artist","uuid":"5923b61b-3a3b-4d85-8a1c-9afcca7fbc11"}
album: EP 2016
  type: MusicAlbum
  date published: 2016
  track: Les Passantes
    type: MusicRecording
    duration: PT3M59S
    duration ms: 239174
    explicit: false
    by artist: Que Tengo
    in album: EP 2016
      type: MusicAlbum
      date published: 2016
    isrc code: FR9W11628035
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-18T08:54:11+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0xfbdfec862b7377533a3149b57298238fd1d980d72a6461a576fa6ce37885ee77
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 958526
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/958526
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FR9W11628035
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-18T09:09:53Z
    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 0xfbdfec862b7377533a3149b57298238fd1d980d72a6461a576fa6ce37885ee77. Chain 2 (Bitcoin): anchored in block 958526 (2026-07-18T09:09:53Z), 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/FR9W11628035.
      date published: 2026-07-18T09:09:53Z
    audio: Les Passantes
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 171.914
      additional property: Musical Key
        type: PropertyValue
        value: 6
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 0
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.687
      additional property: Energy
        type: PropertyValue
        value: 0.548
      additional property: Speechiness
        type: PropertyValue
        value: 0.082
      additional property: Acousticness
        type: PropertyValue
        value: 0.137
      additional property: Instrumentalness
        type: PropertyValue
        value: 0
      additional property: Liveness
        type: PropertyValue
        value: 0.107
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.64
      additional property: Loudness (dB)
        type: PropertyValue
        value: -7.709
      additional property: Key Name
        type: PropertyValue
        value: F#
      additional property: Mode Name
        type: PropertyValue
        value: Minor
album: Colores
  type: MusicAlbum
  date published: 2018-05-16
album: Vidas
  type: MusicAlbum
  date published: 2022-11-04
album: La ola
  type: MusicAlbum
  date published: 2022-11-04
album: Vidas
  type: MusicAlbum
  date published: 2022-11-18
album: Mírame
  type: MusicAlbum
  date published: 2025-02-07