13 Kara
type: MusicGroup
popularity: 2
followers: 196
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xcc3d6bb58adf1f59d2a2c47a91953ae990c9531294795b46cc412120642a181a
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954667
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954667
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/e071cc97-de5b-4baa-96f7-ac1347c67525.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/e071cc97-de5b-4baa-96f7-ac1347c67525.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/e071cc97-de5b-4baa-96f7-ac1347c67525
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-21T07:29:20Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xcc3d6bb58adf1f59d2a2c47a91953ae990c9531294795b46cc412120642a181a","name":"13 Kara","registered_at":"2026-06-21T06:26:35Z","symbol":"NIM1848035","token_address":"0x7e8143a4e950881930683cd00e6a89b401151fa5","type":"artist","uuid":"e071cc97-de5b-4baa-96f7-ac1347c67525"}
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 0xcc3d6bb58adf1f59d2a2c47a91953ae990c9531294795b46cc412120642a181a. Chain 2 (Bitcoin): anchored in block 954667 (2026-06-21T07:29:20Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/e071cc97-de5b-4baa-96f7-ac1347c67525.json and https://artists.proofprofile.net/proofs/artist/e071cc97-de5b-4baa-96f7-ac1347c67525.ots, the client at https://opentimestamps.org runs `ots verify -f record.json proof.ots`.
  date published: 2026-06-21T07:29:20Z
  text: {"copyright_id":"0xcc3d6bb58adf1f59d2a2c47a91953ae990c9531294795b46cc412120642a181a","name":"13 Kara","registered_at":"2026-06-21T06:26:35Z","symbol":"NIM1848035","token_address":"0x7e8143a4e950881930683cd00e6a89b401151fa5","type":"artist","uuid":"e071cc97-de5b-4baa-96f7-ac1347c67525"}
album: Blessure Causée
  type: MusicAlbum
  date published: 2019-10-11
album: Maman stp
  type: MusicAlbum
  date published: 2019-12-14
album: Qu'est Ce Que Tu Vas Faire ?
  type: MusicAlbum
  date published: 2020-04-03
album: Monica
  type: MusicAlbum
  date published: 2020-06-20
album: Elle veut se marier
  type: MusicAlbum
  date published: 2020-11-06
album: Les voisins
  type: MusicAlbum
  date published: 2020-12-23
album: Phone Tel
  type: MusicAlbum
  date published: 2021-07-02
album: Tomber Love
  type: MusicAlbum
  date published: 2021-10-16
album: Relation Toxic
  type: MusicAlbum
  date published: 2022-06-03
album: Nous Deux
  type: MusicAlbum
  date published: 2023-03-18
album: Donner
  type: MusicAlbum
  date published: 2023-11-23
album: Blah-Blah
  type: MusicAlbum
  date published: 2024-05-30
album: MAMA MIA
  type: MusicAlbum
  date published: 2025-05-24
  track: MAMA MIA
    type: MusicRecording
    duration: PT2M24S
    duration ms: 144128
    explicit: false
    by artist: 13 Kara
    in album: MAMA MIA
      type: MusicAlbum
      date published: 2025-05-24
    isrc code: TCAJQ2597656
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-22T10:11:14+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x31f9636c78f4848608400b9d5e52b21270189c91313ab042fac0428bdf481b2b
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 959123
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/959123
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/TCAJQ2597656
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-22T11:35:32Z
    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 0x31f9636c78f4848608400b9d5e52b21270189c91313ab042fac0428bdf481b2b. Chain 2 (Bitcoin): anchored in block 959123 (2026-07-22T11:35:32Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/TCAJQ2597656 — a six-check JSON result.
      date published: 2026-07-22T11:35:32Z
    audio: MAMA MIA
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 99.99
      additional property: Musical Key
        type: PropertyValue
        value: 7
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 0
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.68
      additional property: Energy
        type: PropertyValue
        value: 0.719
      additional property: Speechiness
        type: PropertyValue
        value: 0.036
      additional property: Acousticness
        type: PropertyValue
        value: 0.119
      additional property: Instrumentalness
        type: PropertyValue
        value: 0.006
      additional property: Liveness
        type: PropertyValue
        value: 0.254
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.392
      additional property: Loudness (dB)
        type: PropertyValue
        value: -7.443
      additional property: Key Name
        type: PropertyValue
        value: G
      additional property: Mode Name
        type: PropertyValue
        value: Minor