Grupo Doble L
type: MusicGroup
genre: sierreño
popularity: 6
followers: 911
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x171b4f0127138bf7fdb6e898504a64193b077dd6ffbbeebfcecb66b5bce20537
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954618
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954618
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/c8f66d3b-07cd-41c9-ad55-aca11c948575.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/c8f66d3b-07cd-41c9-ad55-aca11c948575.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/c8f66d3b-07cd-41c9-ad55-aca11c948575
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-20T23:05:13Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x171b4f0127138bf7fdb6e898504a64193b077dd6ffbbeebfcecb66b5bce20537","name":"Grupo Doble L","registered_at":"2026-06-20T22:01:33Z","symbol":"NIM1728546","token_address":"0x574fe41e9f99fce5a334f03fa70a98e4d5e51273","type":"artist","uuid":"c8f66d3b-07cd-41c9-ad55-aca11c948575"}
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 0x171b4f0127138bf7fdb6e898504a64193b077dd6ffbbeebfcecb66b5bce20537. Chain 2 (Bitcoin): anchored in block 954618 (2026-06-20T23:05:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/c8f66d3b-07cd-41c9-ad55-aca11c948575.json and https://artists.proofprofile.net/proofs/artist/c8f66d3b-07cd-41c9-ad55-aca11c948575.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-20T23:05:13Z
  text: {"copyright_id":"0x171b4f0127138bf7fdb6e898504a64193b077dd6ffbbeebfcecb66b5bce20537","name":"Grupo Doble L","registered_at":"2026-06-20T22:01:33Z","symbol":"NIM1728546","token_address":"0x574fe41e9f99fce5a334f03fa70a98e4d5e51273","type":"artist","uuid":"c8f66d3b-07cd-41c9-ad55-aca11c948575"}
album: No Vuelvo A Extrañarte
  type: MusicAlbum
  date published: 2018-07-09
  track: No Vuelvo A Extrañarte
    type: MusicRecording
    duration: PT3M43S
    duration ms: 223114
    explicit: false
    by artist: Grupo Doble L
    in album: No Vuelvo A Extrañarte
      type: MusicAlbum
      date published: 2018-07-09
    genre: sierreño
    isrc code: QZDA61827380
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x8bdeaee495d823121b2df3fc2e6eabb769b25cfc2c1007403907eaf09fc421a4
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 958846
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/958846
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZDA61827380
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-20T10:02:24Z
    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 0x8bdeaee495d823121b2df3fc2e6eabb769b25cfc2c1007403907eaf09fc421a4. Chain 2 (Bitcoin): anchored in block 958846 (2026-07-20T10:02:24Z), 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/QZDA61827380.
      date published: 2026-07-20T10:02:24Z
    audio: No Vuelvo A Extrañarte
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 91.527
      additional property: Musical Key
        type: PropertyValue
        value: 7
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 1
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.752
      additional property: Energy
        type: PropertyValue
        value: 0.495
      additional property: Speechiness
        type: PropertyValue
        value: 0.034
      additional property: Acousticness
        type: PropertyValue
        value: 0.716
      additional property: Instrumentalness
        type: PropertyValue
        value: 0
      additional property: Liveness
        type: PropertyValue
        value: 0.086
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.729
      additional property: Loudness (dB)
        type: PropertyValue
        value: -3.445
      additional property: Key Name
        type: PropertyValue
        value: G
      additional property: Mode Name
        type: PropertyValue
        value: Major
album: Ahora Soy Yo
  type: MusicAlbum
  date published: 2018-09-09
album: El Vacío Que Me Has Dejado
  type: MusicAlbum
  date published: 2019-01-19
album: Volviste
  type: MusicAlbum
  date published: 2019-12-12
album: Secuelas
  type: MusicAlbum
  date published: 2020-06-15
  track: No Vuelvo a Extrañarte
    type: MusicRecording
    duration: PT3M43S
    duration ms: 223114
    explicit: false
    by artist: Grupo Doble L
    in album: Secuelas
      type: MusicAlbum
      date published: 2020-06-15
    genre: sierreño
    isrc code: QZDA61827380
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-17T21:22:06+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x8bdeaee495d823121b2df3fc2e6eabb769b25cfc2c1007403907eaf09fc421a4
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 958461
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/958461
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZDA61827380
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-17T23:18:11Z
    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
    subject of: OpenTimestamps Proof of Existence
      type: DigitalDocument
      encoding format: application/vnd.opentimestamps.ots
      description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8bdeaee495d823121b2df3fc2e6eabb769b25cfc2c1007403907eaf09fc421a4. Chain 2 (Bitcoin): anchored in block 958461 (2026-07-17T23:18:11Z), 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 via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZDA61827380.
      date published: 2026-07-17T23:18:11Z
    audio: No Vuelvo a Extrañarte
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 91.527
      additional property: Musical Key
        type: PropertyValue
        value: 7
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 1
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.753
      additional property: Energy
        type: PropertyValue
        value: 0.495
      additional property: Speechiness
        type: PropertyValue
        value: 0.034
      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: Siempre Volando

Acousticness
type: PropertyValue
value: 0.716

Instrumentalness
type: PropertyValue
value: 0

Liveness
type: PropertyValue
value: 0.086

Valence (Positivity)
type: PropertyValue
value: 0.729

Loudness (dB)
type: PropertyValue
value: -3.445

Key Name
type: PropertyValue
value: G

Mode Name
type: PropertyValue
value: Major

Siempre Volando
type: MusicAlbum
date published: 2020-08-31