La Zarza
type: MusicGroup
genre: grupera
genre: norteño
genre: tejano
popularity: 6
followers: 1434
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x7e2d1bca46d0b24c7fe2afee59dc0d33b4f5065ab27681916de1b385b88b0e14
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954650
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954650
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/d969c4bf-d87a-4028-b396-e9a90dd96acc.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/d969c4bf-d87a-4028-b396-e9a90dd96acc.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/d969c4bf-d87a-4028-b396-e9a90dd96acc
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-21T04:51:12Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x7e2d1bca46d0b24c7fe2afee59dc0d33b4f5065ab27681916de1b385b88b0e14","name":"La Zarza","registered_at":"2026-06-21T03:48:49Z","symbol":"NIM1810480","token_address":"0x13a2dbe6f589db8982524f614cb43d920c1839a6","type":"artist","uuid":"d969c4bf-d87a-4028-b396-e9a90dd96acc"}
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 0x7e2d1bca46d0b24c7fe2afee59dc0d33b4f5065ab27681916de1b385b88b0e14. Chain 2 (Bitcoin): anchored in block 954650 (2026-06-21T04:51:12Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/d969c4bf-d87a-4028-b396-e9a90dd96acc.json and https://artists.proofprofile.net/proofs/artist/d969c4bf-d87a-4028-b396-e9a90dd96acc.ots, the client at https://opentimestamps.org runs `ots verify -f record.json proof.ots`.
  date published: 2026-06-21T04:51:12Z
  text: {"copyright_id":"0x7e2d1bca46d0b24c7fe2afee59dc0d33b4f5065ab27681916de1b385b88b0e14","name":"La Zarza","registered_at":"2026-06-21T03:48:49Z","symbol":"NIM1810480","token_address":"0x13a2dbe6f589db8982524f614cb43d920c1839a6","type":"artist","uuid":"d969c4bf-d87a-4028-b396-e9a90dd96acc"}
album: Con Que Pagaremos
  type: MusicAlbum
  date published: 2014-03-28
album: Volverte a Ver
  type: MusicAlbum
  date published: 2014-05-16
  track: Volverte a Ver
    type: MusicRecording
    duration: PT4M42S
    duration ms: 282461
    explicit: false
    by artist: La Zarza
    in album: Volverte a Ver
      type: MusicAlbum
      date published: 2014-05-16
    genre: grupera
    genre: norteño
    genre: tejano
    isrc code: USHM21412629
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-05T15:10:04+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x6fe252fd4e52ce0b92894b1fd35bce2a4ec76602085b4f2b4526daaf124a7996
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 956822
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/956822
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USHM21412629
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-05T18:48:28Z
    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 0x6fe252fd4e52ce0b92894b1fd35bce2a4ec76602085b4f2b4526daaf124a7996. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USHM21412629 — a six-check JSON result.
      date published: 2026-07-05T18:48:28Z
    audio: Volverte a Ver
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 130.039
      additional property: Musical Key
        type: PropertyValue
        value: 4
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 1
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.829
      additional property: Energy
        type: PropertyValue
        value: 0.528
      additional property: Speechiness
        type: PropertyValue
        value: 0.042
      additional property: Acousticness
        type: PropertyValue
        value: 0.022
      additional property: Instrumentalness
        type: PropertyValue
        value: 0
      additional property: Liveness
        type: PropertyValue
        value: 0.066
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.903
      additional property: Loudness (dB)
        type: PropertyValue
        value: -9.233
      additional property: Key Name
        type: PropertyValue
        value: E
      additional property: Mode Name
        type: PropertyValue
        value: Major
album: Te Amo
  type: MusicAlbum
  date published: 2015-09-01
  track: Te Amo
    type: MusicRecording
    duration: PT3M15S
    duration ms: 195205
    explicit: false
    by artist: La Zarza
    in album: Te Amo
      type: MusicAlbum
      date published: 2015-09-01
    genre: grupera
    genre: norteño
    genre: tejano
    isrc code: USHM21509043
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-16T20:05:00+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x19169a13df1e352fe0c562b8416ad1331f4c4d6472f3099ffb23a2e707c1f2d2
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 958322
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/958322
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USHM21509043
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-16T20:44:14Z
    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 0x19169a13df1e352fe0c562b8416ad1331f4c4d6472f3099ffb23a2e707c1f2d2. Chain 2 (Bitcoin): anchored in block 958322 (2026-07-16T20:44:14Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USHM21509043 — a six-check JSON result.
      date published: 2026-07-16T20:44:14Z
    audio: Te Amo
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 146.152
      additional property: Musical Key
        type: PropertyValue
        value: 7
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 1
      additional property: Time Signature
        type: PropertyValue
        value: 3
      additional property: Danceability
        type: PropertyValue
        value: 0.63
      additional property: Energy
        type: PropertyValue
        value: 0.559
      additional property: Speechiness
        type: PropertyValue
        value: 0.036
      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

Acousticness
type: PropertyValue
value: 0.448

Instrumentalness
type: PropertyValue
value: 0

Liveness
type: PropertyValue
value: 0.128

Valence (Positivity)
type: PropertyValue
value: 0.813

Loudness (dB)
type: PropertyValue
value: -5.851

Key Name
type: PropertyValue
value: G

Mode Name
type: PropertyValue
value: Major