Mark Grai
type: MusicGroup
popularity: 5
followers: 221
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x3358228e1ab21a55411d72b3bbc9f3e30723f33acec657918b85396c516bdb21
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/5e86cb51-be80-4eba-a2cd-86ee1382ef8e.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/5e86cb51-be80-4eba-a2cd-86ee1382ef8e.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/5e86cb51-be80-4eba-a2cd-86ee1382ef8e
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-17T08:11:48Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x3358228e1ab21a55411d72b3bbc9f3e30723f33acec657918b85396c516bdb21","name":"Mark Grai","registered_at":"2026-06-16T22:33:45Z","symbol":"NIM1196487","token_address":"0xcac1923c9766f4175a435cb37f5f4433d005a253","type":"artist","uuid":"5e86cb51-be80-4eba-a2cd-86ee1382ef8e"}
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 0x3358228e1ab21a55411d72b3bbc9f3e30723f33acec657918b85396c516bdb21. 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/5e86cb51-be80-4eba-a2cd-86ee1382ef8e.json and https://artists.proofprofile.net/proofs/artist/5e86cb51-be80-4eba-a2cd-86ee1382ef8e.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-17T08:11:48Z
  text: {"copyright_id":"0x3358228e1ab21a55411d72b3bbc9f3e30723f33acec657918b85396c516bdb21","name":"Mark Grai","registered_at":"2026-06-16T22:33:45Z","symbol":"NIM1196487","token_address":"0xcac1923c9766f4175a435cb37f5f4433d005a253","type":"artist","uuid":"5e86cb51-be80-4eba-a2cd-86ee1382ef8e"}
album: Не ревнуй
  type: MusicAlbum
  date published: 2021-07-10
album: Під парасолькою
  type: MusicAlbum
  date published: 2021-10-29
album: Андромеда
  type: MusicAlbum
  date published: 2022-02-11
album: Моноліт
  type: MusicAlbum
  date published: 2022-04-21
album: До Бога
  type: MusicAlbum
  date published: 2022-06-10
album: Незалежна
  type: MusicAlbum
  date published: 2022-08-23
album: Не святкова
  type: MusicAlbum
  date published: 2022-12-24
album: Все сама
  type: MusicAlbum
  date published: 2023-06-02
album: Переможна пісня
  type: MusicAlbum
  date published: 2023-07-07
  track: Переможна пісня
    type: MusicRecording
    duration: PT2M29S
    duration ms: 149375
    explicit: false
    by artist: Mark Grai
    in album: Переможна пісня
      type: MusicAlbum
      date published: 2023-07-07
    isrc code: USHM82345966
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-16T02:06:54+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0xc7766f37a315086b73d1bb1efdde2efc1e9aeeb4b18cedd81712c72a6b502f1c
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 958228
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/958228
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USHM82345966
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-16T05:05:19Z
    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 0xc7766f37a315086b73d1bb1efdde2efc1e9aeeb4b18cedd81712c72a6b502f1c. Chain 2 (Bitcoin): anchored in block 958228 (2026-07-16T05:05:19Z), 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/USHM82345966.
      date published: 2026-07-16T05:05:19Z
    audio: Переможна пісня
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 144.066
      additional property: Musical Key
        type: PropertyValue
        value: 4
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 0
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.828
      additional property: Energy
        type: PropertyValue
        value: 0.816
      additional property: Speechiness
        type: PropertyValue
        value: 0.056
      additional property: Acousticness
        type: PropertyValue
        value: 0.357
      additional property: Instrumentalness
        type: PropertyValue
        value: 0.012
      additional property: Liveness
        type: PropertyValue
        value: 0.363
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.961
      additional property: Loudness (dB)
        type: PropertyValue
        value: -5.993
      additional property: Key Name
        type: PropertyValue
        value: E
      additional property: Mode Name
        type: PropertyValue
        value: Minor
album: Пожовкле серце
  type: MusicAlbum
  date published: 2023-10-20
album: Моє диво
  type: MusicAlbum
  date published: 2023-12-28
album: Вересень у чай
  type: MusicAlbum
  date published: 2024-09-20
album: Не покинуть
  type: MusicAlbum
  date published: 2024-12-20
album: В кишені квіти
  type: MusicAlbum
  date published: 2025-04-18
album: Мало Весни
  type: MusicAlbum
  date published: 2025-07-11
album: По Куточкам Країни
  type: MusicAlbum
  date published: 2025-08-22
album: Буду справжнім
  type: MusicAlbum
  date published: 2025-11-07