David Martinez
type: MusicGroup
genre: mexican hip hop
popularity: 9
followers: 4074
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additional property: CopyrightChainExplorerURL
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additional property: OTSBitcoinBlock
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additional property: OTSVerificationAPI
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additional property: OTSTimestamp
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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
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  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x776a39c59288c5061bb72d0843a69beb2813200868dfc92c327bbc03c1a08b6a. Chain 2 (Bitcoin): anchored in block 954065 (2026-06-17T08:10:43Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/487bd7cd-4881-4443-b948-c870ce049867.json and https://artists.proofprofile.net/proofs/artist/487bd7cd-4881-4443-b948-c870ce049867.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-17T08:10:43Z
  text: {"copyright_id":"0x776a39c59288c5061bb72d0843a69beb2813200868dfc92c327bbc03c1a08b6a","name":"David Martinez","registered_at":"2026-06-16T14:52:28Z","symbol":"NIM1086419","token_address":"0xf34c708db70da3a4e11b700a1d0a125c277aa652","type":"artist","uuid":"487bd7cd-4881-4443-b948-c870ce049867"}
album: El Principio
  type: MusicAlbum
  date published: 2015-07-06
  track: Primer Mes
    type: MusicRecording
    duration: PT3M46S
    duration ms: 226206
    explicit: false
    by artist: David Martinez
    in album: El Principio
      type: MusicAlbum
      date published: 2015-07-06
    genre: mexican hip hop
    isrc code: USDY41544005
    additional property: CopyrightID
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    additional property: OTSVerificationAPI
      type: PropertyValue
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    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-18T14:29:03Z
    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 0x64e2e2a8cef701bdd5ed390acefd6e081c4e8801b4000a2485edfc56066c2b04. Chain 2 (Bitcoin): anchored in block 958563 (2026-07-18T14:29:03Z), 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/USDY41544005.
      date published: 2026-07-18T14:29:03Z
    audio: Primer Mes
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 87.021
      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: 0.671
      additional property: Energy
        type: PropertyValue
        value: 0.57
      additional property: Speechiness
        type: PropertyValue
        value: 0.105
      additional property: Acousticness
        type: PropertyValue
        value: 0.377
      additional property: Instrumentalness
        type: PropertyValue
        value: 0
      additional property: Liveness
        type: PropertyValue
        value: 0.199
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.935
      additional property: Loudness (dB)
        type: PropertyValue
        value: -9.184
      additional property: Key Name
        type: PropertyValue
        value: C
      additional property: Mode Name
        type: PropertyValue
        value: Major
album: ¿Por Qué Tan Solita?
  type: MusicAlbum
  date published: 2018-08-31
album: A Solas
  type: MusicAlbum
  date published: 2019-10-10
album: Si Tu Estas Conmigo
  type: MusicAlbum
  date published: 2020-04-14
album: Alquimia
  type: MusicAlbum
  date published: 2020-05-18
album: Desde Morro
  type: MusicAlbum
  date published: 2020-07-14
album: De Vuelta
  type: MusicAlbum
  date published: 2020-08-20
album: Afro Latin
  type: MusicAlbum
  date published: 2020-10-09
album: Se Enamoro
  type: MusicAlbum
  date published: 2020-10-09
album: Salmo 116
  type: MusicAlbum
  date published: 2020-11-26
album: Tre C
  type: MusicAlbum
  date published: 2021-03-23
album: Quiero una Novia 3
  type: MusicAlbum
  date published: 2021-05-27
album: Nunca Un Idiota
  type: MusicAlbum
  date published: 2023-07-20
album: Algo Real
  type: MusicAlbum
  date published: 2023-11-09
album: Juntos De La Mano
  type: MusicAlbum
  date published: 2025-01-30
track: No Vales la Pena

No Vales la Pena
type: MusicRecording
duration: PT3M7S
duration ms: 187248
explicit: false
by artist: Toser One
by artist: David Martinez
in album: Ustedes Háganse Bolas, Vol. 1
  type: MusicAlbum
  date published: 2019-05-18
genre: latin-hip-hop
genre: mexican-hip-hop
isrc code: USHM21901460
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
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additional property: CopyrightRegisteredAt
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  value: 2026-06-21T04:36:52+00:00
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  value: https://explorer.copyrightchains.com/tx/0xf5d215b1e2c0d78e45bf6bb91c75d48fa69ca8ad6be356b1362845c22822d1e2
additional property: OTSHash
additional property: OTSBitcoinBlock
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additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/956302
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USHM21901460
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-02T03:30:09+00:00
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
additional property: ProofProfileEvidenceStatus
  type: PropertyValue
  value: verified-cc-db-prod
additional property: TokenDeploymentConfirmed
  type: PropertyValue
  value: true
additional property: ContentHash
additional property: BitcoinBlock
  type: PropertyValue
  value: 956302
additional property: BitcoinTime
  type: PropertyValue
  value: 2026-07-02T03:30:09+00:00
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf5d215b1e2c0d78e45bf6bb91c75d48fa69ca8ad6be356b1362845c22822d1e2. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/USHM21901460.
  date published: 2026-07-02T03:55:08Z
audio: No Vales la Pena
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 171.042
  additional property: Musical Key
    type: PropertyValue
    value: 9
  additional property: Mode (Major/Minor)
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    value: 0
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
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  additional property: Energy
    type: PropertyValue
    value: 0.724
  additional property: Speechiness
    type: PropertyValue
    value: 0.322
  additional property: Acousticness
    type: PropertyValue
    value: 0.188
  additional property: Instrumentalness
    type: PropertyValue
    value: 0
  additional property: Liveness
    type: PropertyValue
    value: 0.12
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.832
  additional property: Loudness (dB)
    type: PropertyValue
    value: -11.323
  additional property: Key Name
    type: PropertyValue
    value: A
  additional property: Mode Name
    type: PropertyValue
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