Eula Constanza Vargas
type: MusicGroup
popularity: 3
followers: 17
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xa149863d7ff75d4729d39f25ae64f20890ade20f60910e0cecf6acc13fcb8094
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953877
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953877
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/0303d2e6-4237-4dc5-9098-c19350bed0a8.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/0303d2e6-4237-4dc5-9098-c19350bed0a8.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/0303d2e6-4237-4dc5-9098-c19350bed0a8
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-16T02:39:16Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xa149863d7ff75d4729d39f25ae64f20890ade20f60910e0cecf6acc13fcb8094","name":"Eula Constanza Vargas","registered_at":"2026-06-15T14:35:18Z","symbol":"NIM0738630","token_address":"0x81df1a2265405598ee773134aa531f09751ca13b","type":"artist","uuid":"0303d2e6-4237-4dc5-9098-c19350bed0a8"}
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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa149863d7ff75d4729d39f25ae64f20890ade20f60910e0cecf6acc13fcb8094. Chain 2 (Bitcoin): anchored in block 953877 (2026-06-16T02:39:16Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/0303d2e6-4237-4dc5-9098-c19350bed0a8.json and https://artists.proofprofile.net/proofs/artist/0303d2e6-4237-4dc5-9098-c19350bed0a8.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-16T02:39:16Z
  text: {"copyright_id":"0xa149863d7ff75d4729d39f25ae64f20890ade20f60910e0cecf6acc13fcb8094","name":"Eula Constanza Vargas","registered_at":"2026-06-15T14:35:18Z","symbol":"NIM0738630","token_address":"0x81df1a2265405598ee773134aa531f09751ca13b","type":"artist","uuid":"0303d2e6-4237-4dc5-9098-c19350bed0a8"}
album: El Sancochito
  type: MusicAlbum
  date published: 2025-04-01
  track: El Sancochito
    type: MusicRecording
    duration: PT1M22S
    duration ms: 82766
    explicit: false
    by artist: Eula Constanza Vargas
    in album: El Sancochito
      type: MusicAlbum
      date published: 2025-04-01
    isrc code: QZGLS2572341
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-04T12:28:03+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x1b7c98a0a41ce248fe605867661754bdcbb8bdd6718e482db542cf5009e9756e
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 956725
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/956725
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZGLS2572341
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-05T01:12:41Z
    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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
    subject of: OpenTimestamps Proof of Existence
      type: DigitalDocument
      encoding format: application/vnd.opentimestamps.ots
      description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1b7c98a0a41ce248fe605867661754bdcbb8bdd6718e482db542cf5009e9756e. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/QZGLS2572341.
      date published: 2026-07-05T01:12:41Z
    audio: El Sancochito
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 155.095
      additional property: Musical Key
        type: PropertyValue
        value: 11
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 0
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.843
      additional property: Energy
        type: PropertyValue
        value: 0.628
      additional property: Speechiness
        type: PropertyValue
        value: 0.709
      additional property: Acousticness
        type: PropertyValue
        value: 0.084
      additional property: Instrumentalness
        type: PropertyValue
        value: 0
      additional property: Liveness
        type: PropertyValue
        value: 0.654
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.238
      additional property: Loudness (dB)
        type: PropertyValue
        value: -8.34
      additional property: Key Name
        type: PropertyValue
        value: B
      additional property: Mode Name
        type: PropertyValue
        value: Minor