Tefa Libre
type: MusicGroup
popularity: 7
followers: 2298
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xbea9a90341fb46c90fb28e803213ec9143dd113760178e80b8bac8d5f0b541b2
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954689
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954689
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/e1c33fe0-6fa9-4b83-9974-f4b9fe940673.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/e1c33fe0-6fa9-4b83-9974-f4b9fe940673.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/e1c33fe0-6fa9-4b83-9974-f4b9fe940673
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-21T10:35:31Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xbea9a90341fb46c90fb28e803213ec9143dd113760178e80b8bac8d5f0b541b2","name":"Tefa Libre","registered_at":"2026-06-21T06:41:18Z","symbol":"NIM1851594","token_address":"0xde473b704db71a1a1a1ec1f26ef23aca73f13acf","type":"artist","uuid":"e1c33fe0-6fa9-4b83-9974-f4b9fe940673"}
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 0xbea9a90341fb46c90fb28e803213ec9143dd113760178e80b8bac8d5f0b541b2. Chain 2 (Bitcoin): anchored in block 954689 (2026-06-21T10:35:31Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/e1c33fe0-6fa9-4b83-9974-f4b9fe940673.json and https://artists.proofprofile.net/proofs/artist/e1c33fe0-6fa9-4b83-9974-f4b9fe940673.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-21T10:35:31Z
  text: {"copyright_id":"0xbea9a90341fb46c90fb28e803213ec9143dd113760178e80b8bac8d5f0b541b2","name":"Tefa Libre","registered_at":"2026-06-21T06:41:18Z","symbol":"NIM1851594","token_address":"0xde473b704db71a1a1a1ec1f26ef23aca73f13acf","type":"artist","uuid":"e1c33fe0-6fa9-4b83-9974-f4b9fe940673"}
album: Libre Como El Viento
  type: MusicAlbum
  date published: 2021-07-28
album: Moral Doble
  type: MusicAlbum
  date published: 2021-09-26
album: Cancion de la Palabra
  type: MusicAlbum
  date published: 2022-01-14
album: En Homenaje
  type: MusicAlbum
  date published: 2022-03-11
  track: En Homenaje
    type: MusicRecording
    duration: PT3M41S
    duration ms: 221146
    explicit: true
    by artist: Tefa Libre
    in album: En Homenaje
      type: MusicAlbum
      date published: 2022-03-11
    isrc code: QZDA82247558
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-17T21:37:57+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x4f1e1dfbd2411deb6dbeb5cf5f6f316bce5c5f6c11db0e1dd626c1ffb2448b67
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 958489
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/958489
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QZDA82247558
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-18T04:13:26Z
    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 0x4f1e1dfbd2411deb6dbeb5cf5f6f316bce5c5f6c11db0e1dd626c1ffb2448b67. Chain 2 (Bitcoin): anchored in block 958489 (2026-07-18T04:13:26Z), 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/QZDA82247558.
      date published: 2026-07-18T04:13:26Z
    audio: En Homenaje
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 87.022
      additional property: Musical Key
        type: PropertyValue
        value: 6
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 1
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.571
      additional property: Energy
        type: PropertyValue
        value: 0.824
      additional property: Speechiness
        type: PropertyValue
        value: 0.096
      additional property: Acousticness
        type: PropertyValue
        value: 0.038
      additional property: Instrumentalness
        type: PropertyValue
        value: 0
      additional property: Liveness
        type: PropertyValue
        value: 0.121
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.818
      additional property: Loudness (dB)
        type: PropertyValue
        value: -6.646
      additional property: Key Name
        type: PropertyValue
        value: F#
      additional property: Mode Name
        type: PropertyValue
        value: Major
album: Quien Eres
  type: MusicAlbum
  date published: 2022-11-11
album: Renacer
  type: MusicAlbum
  date published: 2023-05-19
album: Libra
  type: MusicAlbum
  date published: 2023-08-18
album: A Fuego Lento
  type: MusicAlbum
  date published: 2023-11-25
album: Amor Amor
  type: MusicAlbum
  date published: 2024-01-20
album: Injusto
  type: MusicAlbum
  date published: 2024-04-12
album: Normal
  type: MusicAlbum
  date published: 2024-06-07
album: Vaya Vaya
  type: MusicAlbum
  date published: 2024-11-29
album: LA DIEZ
  type: MusicAlbum
  date published: 2025-02-07
album: Amanecer
  type: MusicAlbum
  date published: 2025-04-04
album: Bromelias
  type: MusicAlbum
  date published: 2025-05-02
album: POCO ÉTICO
  type: MusicAlbum
  date published: 2025-10-17