Nancy Castañeda
type: MusicGroup
popularity: 5
followers: 127
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xa88542b3be39c07172eebff36145080e90a6b6666442682cc6c676f7ce189379
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954516
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954516
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/9f9b3338-0858-48ed-b1df-d9a47d1b77cf.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/9f9b3338-0858-48ed-b1df-d9a47d1b77cf.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/9f9b3338-0858-48ed-b1df-d9a47d1b77cf
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-20T07:04:44Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xa88542b3be39c07172eebff36145080e90a6b6666442682cc6c676f7ce189379","name":"Nancy Castañeda","registered_at":"2026-06-20T05:33:43Z","symbol":"NIM1526539","token_address":"0x3f77bca12947a966367555abb2a47702548bc3bf","type":"artist","uuid":"9f9b3338-0858-48ed-b1df-d9a47d1b77cf"}
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 0xa88542b3be39c07172eebff36145080e90a6b6666442682cc6c676f7ce189379. Chain 2 (Bitcoin): anchored in block 954516 (2026-06-20T07:04:44Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/9f9b3338-0858-48ed-b1df-d9a47d1b77cf.json and https://artists.proofprofile.net/proofs/artist/9f9b3338-0858-48ed-b1df-d9a47d1b77cf.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-20T07:04:44Z
  text: {"copyright_id":"0xa88542b3be39c07172eebff36145080e90a6b6666442682cc6c676f7ce189379","name":"Nancy Castañeda","registered_at":"2026-06-20T05:33:43Z","symbol":"NIM1526539","token_address":"0x3f77bca12947a966367555abb2a47702548bc3bf","type":"artist","uuid":"9f9b3338-0858-48ed-b1df-d9a47d1b77cf"}
album: Grande es Dios
  type: MusicAlbum
  date published: 2022-05-05
album: Quiero darte las Gracias
  type: MusicAlbum
  date published: 2022-05-05
album: Mira Una Luz
  type: MusicAlbum
  date published: 2022-05-06
album: Jesús El Amor de mi Vida
  type: MusicAlbum
  date published: 2022-05-06
album: Ahora Puedo Entender
  type: MusicAlbum
  date published: 2022-05-06
album: Las Lagrimas Hablan
  type: MusicAlbum
  date published: 2022-05-06
  track: Las Lagrimas Hablan
    type: MusicRecording
    duration: PT5M3S
    duration ms: 303339
    explicit: false
    by artist: Nancy Castañeda
    in album: Las Lagrimas Hablan
      type: MusicAlbum
      date published: 2022-05-06
    isrc code: QZHN92267474
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-20T12:12:02+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x52a7782af6092b0000806c77ca1f05fee75847a67c4b8b2aa42da840e8060d41
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 958880
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/958880
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZHN92267474
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-20T15:11:12Z
    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 0x52a7782af6092b0000806c77ca1f05fee75847a67c4b8b2aa42da840e8060d41. Chain 2 (Bitcoin): anchored in block 958880 (2026-07-20T15:11:12Z), 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/QZHN92267474.
      date published: 2026-07-20T15:11:12Z
    audio: Las Lagrimas Hablan
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 147.866
      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: 0.487
      additional property: Energy
        type: PropertyValue
        value: 0.611
      additional property: Speechiness
        type: PropertyValue
        value: 0.037
      additional property: Acousticness
        type: PropertyValue
        value: 0.698
      additional property: Instrumentalness
        type: PropertyValue
        value: 0
      additional property: Liveness
        type: PropertyValue
        value: 0.114
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.357
      additional property: Loudness (dB)
        type: PropertyValue
        value: -7.018
      additional property: Key Name
        type: PropertyValue
        value: C
      additional property: Mode Name
        type: PropertyValue
        value: Major
album: Espíritu Santo
  type: MusicAlbum
  date published: 2022-05-06
album: El Milagro Soy Yo
  type: MusicAlbum
  date published: 2022-09-02
album: Una Historia Diferente
  type: MusicAlbum
  date published: 2024-05-16