Última Frontera
type: MusicGroup
popularity: 2
followers: 215
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x706b8ced7798c788232935ccbaf87c768491c5d2f874c6f54249b9aaa12b24df
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954066
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954066
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/635dc04e-1e55-4ed6-a832-69befa05723e.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/635dc04e-1e55-4ed6-a832-69befa05723e.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/635dc04e-1e55-4ed6-a832-69befa05723e
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-17T08:11:48Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x706b8ced7798c788232935ccbaf87c768491c5d2f874c6f54249b9aaa12b24df","name":"Última Frontera","registered_at":"2026-06-17T00:16:33Z","symbol":"NIM1221008","token_address":"0xcdf02edc49ec1a91bcfa2d1c25a41ab03360b5bb","type":"artist","uuid":"635dc04e-1e55-4ed6-a832-69befa05723e"}
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 0x706b8ced7798c788232935ccbaf87c768491c5d2f874c6f54249b9aaa12b24df. Chain 2 (Bitcoin): anchored in block 954066 (2026-06-17T08:11:48Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/635dc04e-1e55-4ed6-a832-69befa05723e.json and https://artists.proofprofile.net/proofs/artist/635dc04e-1e55-4ed6-a832-69befa05723e.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-17T08:11:48Z
  text: {"copyright_id":"0x706b8ced7798c788232935ccbaf87c768491c5d2f874c6f54249b9aaa12b24df","name":"Última Frontera","registered_at":"2026-06-17T00:16:33Z","symbol":"NIM1221008","token_address":"0xcdf02edc49ec1a91bcfa2d1c25a41ab03360b5bb","type":"artist","uuid":"635dc04e-1e55-4ed6-a832-69befa05723e"}
album: Entre la Niebla
  type: MusicAlbum
  date published: 2014-08-26
  track: Un Beso y una Flor - Version
    type: MusicRecording
    duration: PT5M0S
    duration ms: 300930
    explicit: false
    by artist: Última Frontera
    in album: Entre la Niebla
      type: MusicAlbum
      date published: 2014-08-26
    isrc code: ESA011409873
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-20T08:53:29+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x3a0c04198dce3af47134c7a1972f712fc9b486691b15a25a08139499a3506570
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 958853
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/958853
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/ESA011409873
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-20T11:55:57Z
    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 0x3a0c04198dce3af47134c7a1972f712fc9b486691b15a25a08139499a3506570. Chain 2 (Bitcoin): anchored in block 958853 (2026-07-20T11:55:57Z), 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/ESA011409873.
      date published: 2026-07-20T11:55:57Z
    audio: Un Beso y una Flor - Version
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 174.856
      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: 0.434
      additional property: Energy
        type: PropertyValue
        value: 0.942
      additional property: Speechiness
        type: PropertyValue
        value: 0.052
      additional property: Acousticness
        type: PropertyValue
        value: 0.003
      additional property: Instrumentalness
        type: PropertyValue
        value: 0
      additional property: Liveness
        type: PropertyValue
        value: 0.079
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.501
      additional property: Loudness (dB)
        type: PropertyValue
        value: -3.567
      additional property: Key Name
        type: PropertyValue
        value: A
      additional property: Mode Name
        type: PropertyValue
        value: Major
album: Lo Que el Corazón Grita
  type: MusicAlbum
  date published: 2017-05-29