Iván Romero Castellón
type: MusicGroup
popularity: 5
followers: 149
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x25f5c8691786a2a52645058775f8be2d2cb4f10db90573d0bdbfa5548e2aa56d
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954174
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954174
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/7f32d22e-391c-4147-963c-e6ea8b9752e8.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/7f32d22e-391c-4147-963c-e6ea8b9752e8.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/7f32d22e-391c-4147-963c-e6ea8b9752e8
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-18T03:01:36Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x25f5c8691786a2a52645058775f8be2d2cb4f10db90573d0bdbfa5548e2aa56d","name":"Iván Romero Castellón","registered_at":"2026-06-17T09:56:48Z","symbol":"NIM1359424","token_address":"0x2e00ba537bd11ffe801d55532382aea2f54a5d34","type":"artist","uuid":"7f32d22e-391c-4147-963c-e6ea8b9752e8"}
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 0x25f5c8691786a2a52645058775f8be2d2cb4f10db90573d0bdbfa5548e2aa56d. Chain 2 (Bitcoin): anchored in block 954174 (2026-06-18T03:01:36Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/7f32d22e-391c-4147-963c-e6ea8b9752e8.json and https://artists.proofprofile.net/proofs/artist/7f32d22e-391c-4147-963c-e6ea8b9752e8.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-18T03:01:36Z
  text: {"copyright_id":"0x25f5c8691786a2a52645058775f8be2d2cb4f10db90573d0bdbfa5548e2aa56d","name":"Iván Romero Castellón","registered_at":"2026-06-17T09:56:48Z","symbol":"NIM1359424","token_address":"0x2e00ba537bd11ffe801d55532382aea2f54a5d34","type":"artist","uuid":"7f32d22e-391c-4147-963c-e6ea8b9752e8"}
album: ¡Qué Penita de Comparsa!
  type: MusicAlbum
  date published: 2015-01-18
  track: Tenor, Un Pasodoble a Tenor
    type: MusicRecording
    duration: PT2M15S
    duration ms: 135209
    explicit: false
    by artist: Iván Romero Castellón
    in album: ¡Qué Penita de Comparsa!
      type: MusicAlbum
      date published: 2015-01-18
    isrc code: USCGJ2135488
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-20T18:16:50+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x1e6299bdd83774188d5d6e65dad6728c8336d7f4cc83f0792271b5f9264b7d01
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 958924
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/958924
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USCGJ2135488
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-20T21:09:32Z
    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 0x1e6299bdd83774188d5d6e65dad6728c8336d7f4cc83f0792271b5f9264b7d01. Chain 2 (Bitcoin): anchored in block 958924 (2026-07-20T21:09:32Z), 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/USCGJ2135488.
      date published: 2026-07-20T21:09:32Z
    audio: Tenor, Un Pasodoble a Tenor
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 107.681
      additional property: Musical Key
        type: PropertyValue
        value: 4
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 0
      additional property: Time Signature
        type: PropertyValue
        value: 3
      additional property: Danceability
        type: PropertyValue
        value: 0.553
      additional property: Energy
        type: PropertyValue
        value: 0.522
      additional property: Speechiness
        type: PropertyValue
        value: 0.205
      additional property: Acousticness
        type: PropertyValue
        value: 0.918
      additional property: Instrumentalness
        type: PropertyValue
        value: 0
      additional property: Liveness
        type: PropertyValue
        value: 0.07
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.751
      additional property: Loudness (dB)
        type: PropertyValue
        value: -9.663
      additional property: Key Name
        type: PropertyValue
        value: E
      additional property: Mode Name
        type: PropertyValue
        value: Minor
album: Un Fallo Lo Tiene Cualquiera
  type: MusicAlbum
  date published: 2016-01-15
album: ¡Qué Corgaera! (En Vivo)
  type: MusicAlbum
  date published: 2017-11-02
album: Ni los Buenos Son Tan Buenos Ni los Malos Son Tan Malos
  type: MusicAlbum
  date published: 2018-01-28
album: ¿Te Lo Cuento o Te Lo Canto?
  type: MusicAlbum
  date published: 2019-08-02