Boris Khaykin
type: MusicGroup
popularity: 8
followers: 55
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x38cbad2dceb039978b5ad620753c332c035e64b0d615f8c3f5d524704ffa7131
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953991
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953991
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/2efe4a74-068a-4f44-84f2-d933a9d92ab6.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/2efe4a74-068a-4f44-84f2-d933a9d92ab6.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/2efe4a74-068a-4f44-84f2-d933a9d92ab6
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-16T18:47:23Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x38cbad2dceb039978b5ad620753c332c035e64b0d615f8c3f5d524704ffa7131","name":"Boris Khaykin","registered_at":"2026-06-16T05:56:39Z","symbol":"NIM0958562","token_address":"0x48231818e35f6bfe22334316d67bcae2f6acae91","type":"artist","uuid":"2efe4a74-068a-4f44-84f2-d933a9d92ab6"}
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 0x38cbad2dceb039978b5ad620753c332c035e64b0d615f8c3f5d524704ffa7131. Chain 2 (Bitcoin): anchored in block 953991 (2026-06-16T18:47:23Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/2efe4a74-068a-4f44-84f2-d933a9d92ab6.json and https://artists.proofprofile.net/proofs/artist/2efe4a74-068a-4f44-84f2-d933a9d92ab6.ots, the client at https://opentimestamps.org runs `ots verify -f record.json proof.ots`.
  date published: 2026-06-16T18:47:23Z
  text: {"copyright_id":"0x38cbad2dceb039978b5ad620753c332c035e64b0d615f8c3f5d524704ffa7131","name":"Boris Khaykin","registered_at":"2026-06-16T05:56:39Z","symbol":"NIM0958562","token_address":"0x48231818e35f6bfe22334316d67bcae2f6acae91","type":"artist","uuid":"2efe4a74-068a-4f44-84f2-d933a9d92ab6"}
album: Belioz, Saint-Saens, Rubinstein, Dvorak: Symphonic Works
  type: MusicAlbum
  date published: 2008-03-06
album: Boccherini: Minuet - Oginski: Polonaise
  type: MusicAlbum
  date published: 2008-03-06
  track: Minuet from String Quintet in E Major, Op. 13, No. 5
    type: MusicRecording
    duration: PT3M15S
    duration ms: 195586
    explicit: false
    by artist: Boris Khaykin
    in album: Boccherini: Minuet - Oginski: Polonaise
      type: MusicAlbum
      date published: 2008-03-06
    isrc code: RUA150700510
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-03T19:59:15+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x15de18526620e9d9d8feeff862f5659b94d8f13934e97585a336f1329a9ceb7d
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 956551
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/956551
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/RUA150700510
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-03T21:18:05Z
    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 0x15de18526620e9d9d8feeff862f5659b94d8f13934e97585a336f1329a9ceb7d. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), 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/RUA150700510 — a six-check JSON result.
      date published: 2026-07-03T21:18:05Z
    audio: Minuet from String Quintet in E Major, Op. 13, No. 5
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 103.257
      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: 0.494
      additional property: Energy
        type: PropertyValue
        value: 0.108
      additional property: Speechiness
        type: PropertyValue
        value: 0.04
      additional property: Acousticness
        type: PropertyValue
        value: 0.957
      additional property: Instrumentalness
        type: PropertyValue
        value: 0.817
      additional property: Liveness
        type: PropertyValue
        value: 0.435
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.498
      additional property: Loudness (dB)
        type: PropertyValue
        value: -26.491
      additional property: Key Name
        type: PropertyValue
        value: G
      additional property: Mode Name
        type: PropertyValue
        value: Minor
album: Selections from Operas - Glinka, Rubinstein, Rimsky-Korsakov, Tchaikovsky, Gounod, Verdi
  type: MusicAlbum
  date published: 2008-03-11
album: Tchaikovsky: Selections from The Sleeping Beauty
  type: MusicAlbum
  date published: 2008-03-13
album: Glazunov: Symphony No. 7 in F Major, Op. 77 & Selections from "The Seasons", Op. 67
  type: MusicAlbum
  date published: 2008-03-14
album: Glazunov: Symphony No. 3 in D Major, Op. 33
  type: MusicAlbum
  date published: 2008-03-14
album: Rimsky-Korsakov: Symphony No. 1 in E Minor, Op.1 & Fairy Tale, Op. 29
  type: MusicAlbum
  date published: 2008-03-14
album: Kalinnikov: The Cedar and The Palm - Mussorgsky: Intermezzo, Scherzo - Lyadov: Baba Yaga, Musical Snuffbox, Of Olden Times
  type: MusicAlbum
  date published: 2008-03-18