Carmen Ferrer
type: MusicGroup
popularity: 4
followers: 908
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x46d9f74775f3cd860058bd850f1dabe7083e7a52ebed0bf06610acf6513ad857
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954513
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954513
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/a0b8f12f-d095-4149-be83-ddf8fac01f14.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/a0b8f12f-d095-4149-be83-ddf8fac01f14.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/a0b8f12f-d095-4149-be83-ddf8fac01f14
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-20T06:31:18Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x46d9f74775f3cd860058bd850f1dabe7083e7a52ebed0bf06610acf6513ad857","name":"Carmen Ferrer","registered_at":"2026-06-20T05:17:37Z","symbol":"NIM1527021","token_address":"0x204ff2e57161ec0910db716317e7e7f78b97f6be","type":"artist","uuid":"a0b8f12f-d095-4149-be83-ddf8fac01f14"}
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 0x46d9f74775f3cd860058bd850f1dabe7083e7a52ebed0bf06610acf6513ad857. Chain 2 (Bitcoin): anchored in block 954513 (2026-06-20T06:31:18Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/a0b8f12f-d095-4149-be83-ddf8fac01f14.json and https://artists.proofprofile.net/proofs/artist/a0b8f12f-d095-4149-be83-ddf8fac01f14.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-20T06:31:18Z
  text: {"copyright_id":"0x46d9f74775f3cd860058bd850f1dabe7083e7a52ebed0bf06610acf6513ad857","name":"Carmen Ferrer","registered_at":"2026-06-20T05:17:37Z","symbol":"NIM1527021","token_address":"0x204ff2e57161ec0910db716317e7e7f78b97f6be","type":"artist","uuid":"a0b8f12f-d095-4149-be83-ddf8fac01f14"}
album: La Suerte de Perderte
  type: MusicAlbum
  date published: 2023-04-21
album: Ferrari
  type: MusicAlbum
  date published: 2023-07-14
album: Que se entere el mundo entero
  type: MusicAlbum
  date published: 2023-10-27
album: no me falles
  type: MusicAlbum
  date published: 2024-03-08
  track: no me falles
    type: MusicRecording
    duration: PT2M43S
    duration ms: 163693
    explicit: false
    by artist: Carmen Ferrer
    in album: no me falles
      type: MusicAlbum
      date published: 2024-03-08
    isrc code: ESA092401100
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-17T13:27:43+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0xf550ae73b266c904bf41ad9aa2d7c7535be136d01b4d886e6ee7c1c733a02e93
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 958444
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/958444
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ESA092401100
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-17T19:12:23Z
    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 0xf550ae73b266c904bf41ad9aa2d7c7535be136d01b4d886e6ee7c1c733a02e93. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), 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/ESA092401100.
      date published: 2026-07-17T19:12:23Z
    audio: no me falles
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 96.042
      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: 0.864
      additional property: Energy
        type: PropertyValue
        value: 0.511
      additional property: Speechiness
        type: PropertyValue
        value: 0.16
      additional property: Acousticness
        type: PropertyValue
        value: 0.487
      additional property: Instrumentalness
        type: PropertyValue
        value: 0
      additional property: Liveness
        type: PropertyValue
        value: 0.115
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.381
      additional property: Loudness (dB)
        type: PropertyValue
        value: -9.373
      additional property: Key Name
        type: PropertyValue
        value: C
      additional property: Mode Name
        type: PropertyValue
        value: Major
album: Me piro a_Marte
  type: MusicAlbum
  date published: 2024-07-16
album: Me he sentido sola
  type: MusicAlbum
  date published: 2025-04-04
album: Me He Sentido Sola
  type: MusicAlbum
  date published: 2025-08-20