Los Querubines
type: MusicGroup
popularity: 5
followers: 183
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xcd67740b81d0ccc0eaafa00095dabfe5bb9a7d6ec8a4bcceb30a01a6ea03c5fa
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954047
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954047
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/41e371ca-26c6-444b-bfc3-854a97c6898f.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/41e371ca-26c6-444b-bfc3-854a97c6898f.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/41e371ca-26c6-444b-bfc3-854a97c6898f
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-17T04:56:08Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xcd67740b81d0ccc0eaafa00095dabfe5bb9a7d6ec8a4bcceb30a01a6ea03c5fa","name":"Los Querubines","registered_at":"2026-06-16T12:31:40Z","symbol":"NIM1052830","token_address":"0x946628b18772295af392482c90bb81b8cfe1ea32","type":"artist","uuid":"41e371ca-26c6-444b-bfc3-854a97c6898f"}
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 0xcd67740b81d0ccc0eaafa00095dabfe5bb9a7d6ec8a4bcceb30a01a6ea03c5fa. Chain 2 (Bitcoin): anchored in block 954047 (2026-06-17T04:56:08Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/41e371ca-26c6-444b-bfc3-854a97c6898f.json and https://artists.proofprofile.net/proofs/artist/41e371ca-26c6-444b-bfc3-854a97c6898f.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-17T04:56:08Z
  text: {"copyright_id":"0xcd67740b81d0ccc0eaafa00095dabfe5bb9a7d6ec8a4bcceb30a01a6ea03c5fa","name":"Los Querubines","registered_at":"2026-06-16T12:31:40Z","symbol":"NIM1052830","token_address":"0x946628b18772295af392482c90bb81b8cfe1ea32","type":"artist","uuid":"41e371ca-26c6-444b-bfc3-854a97c6898f"}
album: Upe Chekambiarire
  type: MusicAlbum
  date published: 2009-04-28
album: Villancicos Bailables
  type: MusicAlbum
  date published: 2012-09-17
album: Clásicos Infantiles Cristianos, Vol. 2
  type: MusicAlbum
  date published: 2020-07-07
album: Clásicos Infantiles Cristianos, Vol. 2
  type: MusicAlbum
  date published: 2020-07-07
  track: Los Hijos de Jacob
    type: MusicRecording
    duration: PT1M15S
    duration ms: 75126
    explicit: false
    by artist: Los Querubines
    in album: Clásicos Infantiles Cristianos, Vol. 2
      type: MusicAlbum
      date published: 2020-07-07
    isrc code: UKXN22099525
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-05T06:49:01+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x4ecf41205011cd5b8ebdf920a14ca67625552bd80164afdec0b7cb3d66a132ee
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 956772
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/956772
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/UKXN22099525
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-05T10:01:46Z
    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 0x4ecf41205011cd5b8ebdf920a14ca67625552bd80164afdec0b7cb3d66a132ee. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/UKXN22099525.
      date published: 2026-07-05T10:01:46Z
    audio: Los Hijos de Jacob
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 204.701
      additional property: Musical Key
        type: PropertyValue
        value: 11
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 1
      additional property: Time Signature
        type: PropertyValue
        value: 3
      additional property: Danceability
        type: PropertyValue
        value: 0.598
      additional property: Energy
        type: PropertyValue
        value: 0.226
      additional property: Speechiness
        type: PropertyValue
        value: 0.846
      additional property: Acousticness
        type: PropertyValue
        value: 0.683
      additional property: Instrumentalness
        type: PropertyValue
        value: 0
      additional property: Liveness
        type: PropertyValue
        value: 0.247
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.666
      additional property: Loudness (dB)
        type: PropertyValue
        value: -16.168
      additional property: Key Name
        type: PropertyValue
        value: B
      additional property: Mode Name
        type: PropertyValue
        value: Major