Contratiempos
type: MusicGroup
genre: cuarteto
genre: cumbia
popularity: 5
followers: 479
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xe9e383ab9293dab9b63d839c7799d7000664b25cc95dd47373d143f99ab75938
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954131
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954131
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/7b0440db-753f-4fc1-a851-e7b3c060e8a8.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/7b0440db-753f-4fc1-a851-e7b3c060e8a8.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/7b0440db-753f-4fc1-a851-e7b3c060e8a8
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-17T19:19:19Z
additional property: OTSCanonicalRecord
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 0xe9e383ab9293dab9b63d839c7799d7000664b25cc95dd47373d143f99ab75938. Chain 2 (Bitcoin): anchored in block 954131 (2026-06-17T19:19:19Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/7b0440db-753f-4fc1-a851-e7b3c060e8a8.json and https://artists.proofprofile.net/proofs/artist/7b0440db-753f-4fc1-a851-e7b3c060e8a8.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-17T19:19:19Z
album: Me Duele Tu Nombre, Ella Dijo
  type: MusicAlbum
  date published: 2020-04-03
  track: Me Duele Tu Nombre, Ella Dijo
    type: MusicRecording
    duration: PT5M44S
    duration ms: 344000
    explicit: false
    by artist: Contratiempos
    in album: Me Duele Tu Nombre, Ella Dijo
      type: MusicAlbum
      date published: 2020-04-03
    genre: cuarteto
    genre: cumbia
    isrc code: QZHZ52007338
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-21T19:52:20+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x17eed728b78e0a9c4682c1f4cab55b691ba1efa75e2c5d2b9fe3cd7a94f15999
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 959054
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/959054
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZHZ52007338
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-21T20:19:31Z
    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 0x17eed728b78e0a9c4682c1f4cab55b691ba1efa75e2c5d2b9fe3cd7a94f15999. Chain 2 (Bitcoin): anchored in block 959054 (2026-07-21T20:19:31Z), 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/QZHZ52007338.
      date published: 2026-07-21T20:19:31Z
    audio: Me Duele Tu Nombre, Ella Dijo
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 81.915
      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: 0.642
      additional property: Energy
        type: PropertyValue
        value: 0.616
      additional property: Speechiness
        type: PropertyValue
        value: 0.037
      additional property: Acousticness
        type: PropertyValue
        value: 0.243
      additional property: Instrumentalness
        type: PropertyValue
        value: 0
      additional property: Liveness
        type: PropertyValue
        value: 0.1
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.686
      additional property: Loudness (dB)
        type: PropertyValue
        value: -8.104
      additional property: Key Name
        type: PropertyValue
        value: A
      additional property: Mode Name
        type: PropertyValue
        value: Major
album: Session #1
  type: MusicAlbum
  date published: 2021-02-26
album: Baila Conmigo
  type: MusicAlbum
  date published: 2021-05-31
album: Bésame, Te Vi, Deja de Llorar
  type: MusicAlbum
  date published: 2021-07-02
album: Session #2
  type: MusicAlbum
  date published: 2021-11-04
album: París, Pepas, el Mismo Aire
  type: MusicAlbum
  date published: 2022-02-26
album: Te Esperaba
  type: MusicAlbum
  date published: 2022-09-09
album: Quédate, Te Felícito, Tacones Rojos
  type: MusicAlbum
  date published: 2023-01-07
album: Un Finde
  type: MusicAlbum
  date published: 2023-04-12
album: Lo Que Me Duele, Aquello Que Pasó
  type: MusicAlbum
  date published: 2023-07-17
album: Que No Le Hago Falta
  type: MusicAlbum
  date published: 2023-09-26
album: Session #3
  type: MusicAlbum
  date published: 2023-12-29
album: Cumbias Enganchadas
  type: MusicAlbum
  date published: 2024-01-15
album: Session #4
  type: MusicAlbum
  date published: 2024-02-09
album: Conmigo Te Gustó / Pechos Calientes / El No Va a Venir
  type: MusicAlbum
  date published: 2024-12-19
album: La de la Mala Suerte (Versión Cuarteto)
  type: MusicAlbum
  date published: 2025-08-12
  track: La de la Mala Suerte - Versión Cuarteto
    type: MusicRecording
    duration: PT4M10S
    duration ms: 250197
    explicit: false
    by artist: Contratiempos
    in album: La de la Mala Suerte (Versión Cuarteto)
      type: MusicAlbum
      date published: 2025-08-12
    genre: cuarteto
    genre: cumbia
    isrc code: QZNJY2565819
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-03T07:16:32+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0xf0088e765abdc6cd9e1df3e444c3a6e4f74072ee3441a83e12293f80b0de52c0
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 956474
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/956474
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZNJY2565819
    additional property: OTSTimestamp
    additional property: OTSVerifyInstructions
    subject of: OpenTimestamps Proof of Existence
    audio: La de la Mala Suerte - Versión Cuarteto

OTSTimestamp
type: PropertyValue
value: 2026-07-03T08:56:35Z

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

OpenTimestamps Proof of Existence
type: DigitalDocument
encoding format: application/vnd.opentimestamps.ots
description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf0088e765abdc6cd9e1df3e444c3a6e4f74072ee3441a83e12293f80b0de52c0. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/QZNJY2565819.
date published: 2026-07-03T08:56:35Z

La de la Mala Suerte - Versión Cuarteto
type: AudioObject
additional property: Tempo (BPM)
  type: PropertyValue
  value: 146.057
additional property: Musical Key
  type: PropertyValue
  value: 1
additional property: Mode (Major/Minor)
  type: PropertyValue
  value: 1
additional property: Time Signature
  type: PropertyValue
  value: 4
additional property: Danceability
  type: PropertyValue
  value: 0.575
additional property: Energy
  type: PropertyValue
  value: 0.894
additional property: Speechiness
  type: PropertyValue
  value: 0.035
additional property: Acousticness
  type: PropertyValue
  value: 0.012
additional property: Instrumentalness
  type: PropertyValue
  value: 0
additional property: Liveness
  type: PropertyValue
  value: 0.14
additional property: Valence (Positivity)
  type: PropertyValue
  value: 0.625
additional property: Loudness (dB)
  type: PropertyValue
  value: -5.006
additional property: Key Name
  type: PropertyValue
  value: C#
additional property: Mode Name
  type: PropertyValue
  value: Major