Los Crack
type: MusicGroup
genre: latin rock
popularity: 7
followers: 100
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x55544af3d8c2ceba711d35594d8e12f22f8fd949c168c0f57255014c547dcf26
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954533
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954533
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/a78cb6f5-096d-41f3-950b-2ceda8b69975.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/a78cb6f5-096d-41f3-950b-2ceda8b69975.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/a78cb6f5-096d-41f3-950b-2ceda8b69975
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-20T08:57:02Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x55544af3d8c2ceba711d35594d8e12f22f8fd949c168c0f57255014c547dcf26","name":"Los Crack","registered_at":"2026-06-20T08:15:31Z","symbol":"NIM1563540","token_address":"0xf2cd25d99c63599e6894ece557ac1edad0a6c44f","type":"artist","uuid":"a78cb6f5-096d-41f3-950b-2ceda8b69975"}
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 0x55544af3d8c2ceba711d35594d8e12f22f8fd949c168c0f57255014c547dcf26. Chain 2 (Bitcoin): anchored in block 954533 (2026-06-20T08:57:02Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/a78cb6f5-096d-41f3-950b-2ceda8b69975.json and https://artists.proofprofile.net/proofs/artist/a78cb6f5-096d-41f3-950b-2ceda8b69975.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-20T08:57:02Z
  text: {"copyright_id":"0x55544af3d8c2ceba711d35594d8e12f22f8fd949c168c0f57255014c547dcf26","name":"Los Crack","registered_at":"2026-06-20T08:15:31Z","symbol":"NIM1563540","token_address":"0xf2cd25d99c63599e6894ece557ac1edad0a6c44f","type":"artist","uuid":"a78cb6f5-096d-41f3-950b-2ceda8b69975"}
album: Porque Estás Aquí
  type: MusicAlbum
  date published: 2023-08-25
album: La Rueda Eterna
  type: MusicAlbum
  date published: 2023-10-17
album: Rompe Las Cadenas
  type: MusicAlbum
  date published: 2023-12-12
album: Tu Camino
  type: MusicAlbum
  date published: 2025-01-17
  track: Tu Camino
    type: MusicRecording
    duration: PT3M15S
    duration ms: 195120
    explicit: false
    by artist: Los Crack
    in album: Tu Camino
      type: MusicAlbum
      date published: 2025-01-17
    genre: latin rock
    isrc code: QZFZ42563436
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-05T07:55:29+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x71f51a39f80db9591a6d0be71e727f167ac516a9700fb5264299d0b8410802f0
    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/QZFZ42563436
    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
    subject of: OpenTimestamps Proof of Existence
      type: DigitalDocument
      encoding format: application/vnd.opentimestamps.ots
      description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x71f51a39f80db9591a6d0be71e727f167ac516a9700fb5264299d0b8410802f0. 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/QZFZ42563436.
      date published: 2026-07-05T10:01:46Z
    audio: Tu Camino
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 105.05
      additional property: Musical Key
        type: PropertyValue
        value: 0
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 1
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.627
      additional property: Energy
        type: PropertyValue
        value: 0.816
      additional property: Speechiness
        type: PropertyValue
        value: 0.03
      additional property: Acousticness
        type: PropertyValue
        value: 0.001
      additional property: Instrumentalness
        type: PropertyValue
        value: 0.098
      additional property: Liveness
        type: PropertyValue
        value: 0.344
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.784
      additional property: Loudness (dB)
        type: PropertyValue
        value: -8.374
      additional property: Key Name
        type: PropertyValue
        value: C
      additional property: Mode Name
        type: PropertyValue
        value: Major
album: Un León en mi Ventana
  type: MusicAlbum
  date published: 2025-02-15
  track: Un León en mi Ventana
    type: MusicRecording
    duration: PT3M19S
    duration ms: 199565
    explicit: false
    by artist: Los Crack
    in album: Un León en mi Ventana
      type: MusicAlbum
      date published: 2025-02-15
    genre: latin rock
    isrc code: QZES72577501
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-19T20:21:24+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x654eb009083fb91f80a58eba9e69ede54b2f5053a428746b796b5367796ad9a5
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 958779
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/958779
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZES72577501
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-19T21:08:39Z
    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 0x654eb009083fb91f80a58eba9e69ede54b2f5053a428746b796b5367796ad9a5. Chain 2 (Bitcoin): anchored in block 958779 (2026-07-19T21:08:39Z), 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/QZES72577501.
      date published: 2026-07-19T21:08:39Z
    audio: Un León en mi Ventana
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 138.008
      additional property: Musical Key
        type: PropertyValue
        value: 0
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 1
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.642
      additional property: Energy
        type: PropertyValue
        value: 0.697
      additional property: Speechiness
        type: PropertyValue
        value: 0.027
      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: Seca La Ciudad
album: Lo Que No Fue, No Será

Acousticness
type: PropertyValue
value: 0.002

Instrumentalness
type: PropertyValue
value: 0

Liveness
type: PropertyValue
value: 0.129

Valence (Positivity)
type: PropertyValue
value: 0.652

Loudness (dB)
type: PropertyValue
value: -10.158

Key Name
type: PropertyValue
value: C

Mode Name
type: PropertyValue
value: Major

Seca La Ciudad
type: MusicAlbum
date published: 2025-03-29
track: Seca La Ciudad
  type: MusicRecording
  duration: PT3M41S
  duration ms: 221712
  explicit: false
  by artist: Los Crack
  in album: Seca La Ciudad
    type: MusicAlbum
    date published: 2025-03-29
  genre: latin rock
  isrc code: QZK6K2501927
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-21T04:53:06+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x3afa38fc94c13873d3af899495ab5e3df548a0ad10b06842a8c46c060f951e2c
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 958971
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/958971
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZK6K2501927
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-21T05:04:56Z
  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 0x3afa38fc94c13873d3af899495ab5e3df548a0ad10b06842a8c46c060f951e2c. Chain 2 (Bitcoin): anchored in block 958971 (2026-07-21T05:04:56Z), 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/QZK6K2501927.
    date published: 2026-07-21T05:04:56Z
  audio: Seca La Ciudad
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 145.954
    additional property: Musical Key
      type: PropertyValue
      value: 2
    additional property: Mode (Major/Minor)
      type: PropertyValue
      value: 1
    additional property: Time Signature
      type: PropertyValue
      value: 4
    additional property: Danceability
      type: PropertyValue
      value: 0.57
    additional property: Energy
      type: PropertyValue
      value: 0.794
    additional property: Speechiness
      type: PropertyValue
      value: 0.033
    additional property: Acousticness
      type: PropertyValue
      value: 0.001
    additional property: Instrumentalness
      type: PropertyValue
      value: 0
    additional property: Liveness
      type: PropertyValue
      value: 0.331
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.826
    additional property: Loudness (dB)
      type: PropertyValue
      value: -10.049
    additional property: Key Name
      type: PropertyValue
      value: D
    additional property: Mode Name
      type: PropertyValue
      value: Major

Lo Que No Fue, No Será
type: MusicAlbum
date published: 2025-05-16
track: Lo Que No Fue, No Será
  type: MusicRecording
  duration: PT3M32S
  duration ms: 212129
  explicit: false
  by artist: Los Crack
  in album: Lo Que No Fue, No Será
    type: MusicAlbum
    date published: 2025-05-16
  genre: latin rock
  isrc code: QZPLR2548617
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-20T07:49:38+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x68c683841dff02f7ce1847415ac4fb75942d5eaef116415df6d50ff60b811475
  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/QZPLR2548617
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-20T10:51:00Z
  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 0x68c683841dff02f7ce1847415ac4fb75942d5eaef116415df6d50ff60b811475. Chain 2 (Bitcoin): anchored in block 958846 (2026-07-20T10:51:00Z), 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/QZPLR2548617.
    date published: 2026-07-20T10:51:00Z
  audio: Lo Que No Fue, No Será
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 144.952
    additional property: Musical Key
      type: PropertyValue
      value: 9
    additional property: Mode (Major/Minor)
      type: PropertyValue
      value: 1
    additional property: Time Signature
      type: PropertyValue
      value: 4
    additional property: Danceability
      type: PropertyValue
      value: 0.546
    additional property: Energy
      type: PropertyValue
      value: 0.601
    additional property: Speechiness
      type: PropertyValue
      value: 0.036
    additional property: Acousticness
      type: PropertyValue
      value: 0.001
    additional property: Instrumentalness
      type: PropertyValue
      value: 0
    additional property: Liveness
      type: PropertyValue
      value: 0.111
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.781
    additional property: Loudness (dB)
      type: PropertyValue
      value: -11.036
    additional property: Key Name
      type: PropertyValue
      value: A
    additional property: Mode Name
      type: PropertyValue
      value: Major