Hnos. Cartagena
type: MusicGroup
genre: salsa
popularity: 4
followers: 126
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x459474b042438470f0f96796dc805075a40be81779e57c2bcd0c61db0fb5d130
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954631
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954631
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/cde4fe13-90ad-469b-b1d5-aedf6d8e557a.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/cde4fe13-90ad-469b-b1d5-aedf6d8e557a.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/cde4fe13-90ad-469b-b1d5-aedf6d8e557a
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-21T02:46:24Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x459474b042438470f0f96796dc805075a40be81779e57c2bcd0c61db0fb5d130","name":"Hnos. Cartagena","registered_at":"2026-06-21T00:00:20Z","symbol":"NIM1756707","token_address":"0xce500a3970d806c3054c91393121c4ab3f123e03","type":"artist","uuid":"cde4fe13-90ad-469b-b1d5-aedf6d8e557a"}
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 0x459474b042438470f0f96796dc805075a40be81779e57c2bcd0c61db0fb5d130. Chain 2 (Bitcoin): anchored in block 954631 (2026-06-21T02:46:24Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/cde4fe13-90ad-469b-b1d5-aedf6d8e557a.json and https://artists.proofprofile.net/proofs/artist/cde4fe13-90ad-469b-b1d5-aedf6d8e557a.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-21T02:46:24Z
  text: {"copyright_id":"0x459474b042438470f0f96796dc805075a40be81779e57c2bcd0c61db0fb5d130","name":"Hnos. Cartagena","registered_at":"2026-06-21T00:00:20Z","symbol":"NIM1756707","token_address":"0xce500a3970d806c3054c91393121c4ab3f123e03","type":"artist","uuid":"cde4fe13-90ad-469b-b1d5-aedf6d8e557a"}
album: Infidelidad
  type: MusicAlbum
  date published: 2021-07-11
album: Salsa Sensual
  type: MusicAlbum
  date published: 2021-07-15
  track: Necesito Un Amor
    type: MusicRecording
    duration: PT7M32S
    duration ms: 452760
    explicit: false
    by artist: Hnos. Cartagena
    in album: Salsa Sensual
      type: MusicAlbum
      date published: 2021-07-15
    genre: salsa
    isrc code: DEUD42180160
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-18T19:58:22+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x052cd6dc3e88ad9da810bcfdbe5ede1b0f4535f13b7a08f1adad40db0cae0f23
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 958690
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/958690
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEUD42180160
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-19T07:14:39Z
    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 0x052cd6dc3e88ad9da810bcfdbe5ede1b0f4535f13b7a08f1adad40db0cae0f23. Chain 2 (Bitcoin): anchored in block 958690 (2026-07-19T07:14:39Z), 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/DEUD42180160.
      date published: 2026-07-19T07:14:39Z
    audio: Necesito Un Amor
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 175.89
      additional property: Musical Key
        type: PropertyValue
        value: 0
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 0
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.443
      additional property: Energy
        type: PropertyValue
        value: 0.858
      additional property: Speechiness
        type: PropertyValue
        value: 0.075
      additional property: Acousticness
        type: PropertyValue
        value: 0.478
      additional property: Instrumentalness
        type: PropertyValue
        value: 0
      additional property: Liveness
        type: PropertyValue
        value: 0.325
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.882
      additional property: Loudness (dB)
        type: PropertyValue
        value: -7.35
      additional property: Key Name
        type: PropertyValue
        value: C
      additional property: Mode Name
        type: PropertyValue
        value: Minor