Константин Костомаров
type: MusicGroup
popularity: 8
followers: 105
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x98d8ee97b1daf88be79f6e8da1dea743ea26fcd7c4268bb8e05edb80ef03e3fc
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/afd61375-996f-4792-962a-9ad0ff71d10b.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/afd61375-996f-4792-962a-9ad0ff71d10b.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/afd61375-996f-4792-962a-9ad0ff71d10b
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-21T07:29:20Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x98d8ee97b1daf88be79f6e8da1dea743ea26fcd7c4268bb8e05edb80ef03e3fc","name":"Константин Костомаров","registered_at":"2026-06-20T11:47:01Z","symbol":"NIM1605470","token_address":"0x9c026c425ca827631b23806389e6ed2a0846daed","type":"artist","uuid":"afd61375-996f-4792-962a-9ad0ff71d10b"}
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 0x98d8ee97b1daf88be79f6e8da1dea743ea26fcd7c4268bb8e05edb80ef03e3fc. 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/afd61375-996f-4792-962a-9ad0ff71d10b.json and https://artists.proofprofile.net/proofs/artist/afd61375-996f-4792-962a-9ad0ff71d10b.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-21T07:29:20Z
  text: {"copyright_id":"0x98d8ee97b1daf88be79f6e8da1dea743ea26fcd7c4268bb8e05edb80ef03e3fc","name":"Константин Костомаров","registered_at":"2026-06-20T11:47:01Z","symbol":"NIM1605470","token_address":"0x9c026c425ca827631b23806389e6ed2a0846daed","type":"artist","uuid":"afd61375-996f-4792-962a-9ad0ff71d10b"}
album: Пока живы наши родители
album: Ты нарисованная
  type: MusicAlbum
  date published: 2024-07-04
  track: Ты нарисованная
    type: MusicRecording
    duration: PT3M26S
    duration ms: 206516
    explicit: false
    by artist: Константин Костомаров
    in album: Ты нарисованная
      type: MusicAlbum
      date published: 2024-07-04
    isrc code: RUB732069734
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-22T02:25:25+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x60da1a9e4b59ec34d51ef1043abcff43cbb9303344c7483fb94d57b506f7b488
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 959091
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/959091
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/RUB732069734
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-22T02:33:54Z
    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 0x60da1a9e4b59ec34d51ef1043abcff43cbb9303344c7483fb94d57b506f7b488. Chain 2 (Bitcoin): anchored in block 959091 (2026-07-22T02:33:54Z), 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/RUB732069734.
      date published: 2026-07-22T02:33:54Z
    audio: Ты нарисованная
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 120.085
      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: 0.681
      additional property: Energy
        type: PropertyValue
        value: 0.889
      additional property: Speechiness
        type: PropertyValue
        value: 0.106
      additional property: Acousticness
        type: PropertyValue
        value: 0.093
      additional property: Instrumentalness
        type: PropertyValue
        value: 0
      additional property: Liveness
        type: PropertyValue
        value: 0.117
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.923
      additional property: Loudness (dB)
        type: PropertyValue
        value: -6.357
      additional property: Key Name
        type: PropertyValue
        value: A
      additional property: Mode Name
        type: PropertyValue
        value: Minor