Mari Cheba
type: MusicGroup
description: Mari Cheba is a Ukrainian singer, songwriter, and volunteer. Her vocal abilities have been recognized by the global music industry: she won the title of «Best Female Vocal» according to Trip Hop Natio
popularity: 6
followers: 1169
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x191e855ab02a6bcf5799a458da66a49438a7290bbd37045462d0097891d1c6ba
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954141
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954141
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/8014a3fa-b0cd-4bcc-83e0-e9f4d6d6706a.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/8014a3fa-b0cd-4bcc-83e0-e9f4d6d6706a.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/8014a3fa-b0cd-4bcc-83e0-e9f4d6d6706a
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-17T21:14:35Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x191e855ab02a6bcf5799a458da66a49438a7290bbd37045462d0097891d1c6ba","name":"Mari Cheba","registered_at":"2026-06-17T10:09:14Z","symbol":"NIM1362391","token_address":"0x0d6e25e1c26869a5b342027f7f7537f63b28734a","type":"artist","uuid":"8014a3fa-b0cd-4bcc-83e0-e9f4d6d6706a"}
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 0x191e855ab02a6bcf5799a458da66a49438a7290bbd37045462d0097891d1c6ba. Chain 2 (Bitcoin): anchored in block 954141 (2026-06-17T21:14:35Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/8014a3fa-b0cd-4bcc-83e0-e9f4d6d6706a.json and https://artists.proofprofile.net/proofs/artist/8014a3fa-b0cd-4bcc-83e0-e9f4d6d6706a.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-17T21:14:35Z
  text: {"copyright_id":"0x191e855ab02a6bcf5799a458da66a49438a7290bbd37045462d0097891d1c6ba","name":"Mari Cheba","registered_at":"2026-06-17T10:09:14Z","symbol":"NIM1362391","token_address":"0x0d6e25e1c26869a5b342027f7f7537f63b28734a","type":"artist","uuid":"8014a3fa-b0cd-4bcc-83e0-e9f4d6d6706a"}
album: Svitlo For Y
  type: MusicAlbum
  date published: 2016-06-06
album: IONA
  type: MusicAlbum
  date published: 2016-06-19
album: IONA
  type: MusicAlbum
  date published: 2016-06-19
album: Тільки ти
  type: MusicAlbum
  date published: 2016-09-18
album: З тобою
  type: MusicAlbum
  date published: 2017-02-19
album: З тобою
  type: MusicAlbum
  date published: 2017-02-19
album: Прислухаюсь
  type: MusicAlbum
  date published: 2018-04-19
album: Прислухаюсь
  type: MusicAlbum
  date published: 2018-04-19
album: З тобою (Mkurgaev & Boosin Remix)
  type: MusicAlbum
  date published: 2019-04-01
album: З тобою (MKurgaev & Boosin Remix)
  type: MusicAlbum
  date published: 2019-04-01
album: Довіряй
  type: MusicAlbum
  date published: 2019-09-06
album: Ангели
  type: MusicAlbum
  date published: 2019-11-12
album: Лотоси
  type: MusicAlbum
  date published: 2021-04-27
album: Пустоти
  type: MusicAlbum
  date published: 2021-11-05
album: KAMA
  type: MusicAlbum
  date published: 2021-11-26
album: Місце сили
  type: MusicAlbum
  date published: 2022-03-11
album: Нація серця
  type: MusicAlbum
  date published: 2022-06-03
album: 220V
  type: MusicAlbum
  date published: 2023-01-13
  track: Реальний світ
    type: MusicRecording
    duration: PT2M50S
    duration ms: 170454
    explicit: false
    by artist: Mari Cheba
    in album: 220V
      type: MusicAlbum
      date published: 2023-01-13
    isrc code: UABM12200716
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-05T18:32:45+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x3a465ab174cb37dad215a8519ce7461772c2dba1570064eca735e99327b4e39e
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 956826
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/956826
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/UABM12200716
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-05T19:27:56Z
    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 0x3a465ab174cb37dad215a8519ce7461772c2dba1570064eca735e99327b4e39e. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/UABM12200716.
      date published: 2026-07-05T19:27:56Z
    audio: Реальний світ
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 176.033
      additional property: Musical Key
        type: PropertyValue
        value: 9
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 0
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.531
      additional property: Energy
        type: PropertyValue
        value: 0.482
      additional property: Speechiness
        type: PropertyValue
        value: 0.323
      additional property: Acousticness
        type: PropertyValue
        value: 0.794
      additional property: Instrumentalness
        type: PropertyValue
        value: 0
      additional property: Liveness
        type: PropertyValue
        value: 0.086
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.383
      additional property: Loudness (dB)
        type: PropertyValue
        value: -10.148
      additional property: Key Name
        type: PropertyValue
        value: A
      additional property: Mode Name
        type: PropertyValue
        value: Minor
album: Реальний світ
  type: MusicAlbum
  date published: 2023-01-19
album: Шлюзи
  type: MusicAlbum
  date published: 2023-04-27
album: Серафим
  type: MusicAlbum
  date published: 2023-12-06
album: Тягне
  type: MusicAlbum
  date published: 2024-01-26
album: Ріка любові
  type: MusicAlbum
  date published: 2024-08-30