Sergei Trofanov
type: MusicGroup
popularity: 10
followers: 1134
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xa459d76f5ad7901a67ff40ba9432cafa8f53ea1fea5e593927390ef6d2cf59a4
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/615067c4-858b-45d1-8dcc-6b70bdafa1d7.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/615067c4-858b-45d1-8dcc-6b70bdafa1d7.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/615067c4-858b-45d1-8dcc-6b70bdafa1d7
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-17T08:11:48Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xa459d76f5ad7901a67ff40ba9432cafa8f53ea1fea5e593927390ef6d2cf59a4","name":"Sergei Trofanov","registered_at":"2026-06-16T23:54:30Z","symbol":"NIM1215748","token_address":"0x62d1303c94c0517cedc814f87fe03d331054e6e4","type":"artist","uuid":"615067c4-858b-45d1-8dcc-6b70bdafa1d7"}
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 0xa459d76f5ad7901a67ff40ba9432cafa8f53ea1fea5e593927390ef6d2cf59a4. 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/615067c4-858b-45d1-8dcc-6b70bdafa1d7.json and https://artists.proofprofile.net/proofs/artist/615067c4-858b-45d1-8dcc-6b70bdafa1d7.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-17T08:11:48Z
  text: {"copyright_id":"0xa459d76f5ad7901a67ff40ba9432cafa8f53ea1fea5e593927390ef6d2cf59a4","name":"Sergei Trofanov","registered_at":"2026-06-16T23:54:30Z","symbol":"NIM1215748","token_address":"0x62d1303c94c0517cedc814f87fe03d331054e6e4","type":"artist","uuid":"615067c4-858b-45d1-8dcc-6b70bdafa1d7"}
album: Gypsy passion
  type: MusicAlbum
  date published: 1999-10-01
album: Around the world
  type: MusicAlbum
  date published: 2006-03-14
album: Québec Passion
  type: MusicAlbum
  date published: 2006-10-17
album: Cinema Passion
  type: MusicAlbum
  date published: 2007-09-05
album: Gypsy Passion 3
  type: MusicAlbum
  date published: 2008-10-28
album: Québec Passion 2
  type: MusicAlbum
  date published: 2010-06-15
album: Gypsy fashion
  type: MusicAlbum
  date published: 2011-02-28
album: Ukrainian Medley (Live Recording)
  type: MusicAlbum
  date published: 2012-03-01
album: Romanian Paysage (Live)
  type: MusicAlbum
  date published: 2012-11-01
album: Gypsy Dance, #1
  type: MusicAlbum
  date published: 2013-06-15
album: The Best of My Passions
  type: MusicAlbum
  date published: 2013-09-03
album: Gypsy Moon
  type: MusicAlbum
  date published: 2018-02-01
album: Night Violin
  type: MusicAlbum
  date published: 2018-02-26
album: Gypsy Mood
  type: MusicAlbum
  date published: 2023-11-06
album: Gypsy Style
  type: MusicAlbum
  date published: 2023-11-07
  track: Codru
    type: MusicRecording
    duration: PT4M25S
    duration ms: 265880
    explicit: false
    by artist: Sergei Trofanov
    in album: Gypsy Style
      type: MusicAlbum
      date published: 2023-11-07
    isrc code: USL4R2381485
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-20T09:03:48+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0xe85a5769a2745d73f8b31f2b24bbb2d8313a4a82c8d90f87b9d4e7302f5d2f2b
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 958857
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/958857
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USL4R2381485
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-20T12:04:50Z
    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 0xe85a5769a2745d73f8b31f2b24bbb2d8313a4a82c8d90f87b9d4e7302f5d2f2b. Chain 2 (Bitcoin): anchored in block 958857 (2026-07-20T12:04:50Z), 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/USL4R2381485.
      date published: 2026-07-20T12:04:50Z
    audio: Codru
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 126.847
      additional property: Musical Key
        type: PropertyValue
        value: 11
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 0
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.612
      additional property: Energy
        type: PropertyValue
        value: 0.363
      additional property: Speechiness
        type: PropertyValue
        value: 0.032
      additional property: Acousticness
        type: PropertyValue
        value: 0.001
      additional property: Instrumentalness
        type: PropertyValue
        value: 0.019
      additional property: Liveness
        type: PropertyValue
        value: 0.084
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.197
      additional property: Loudness (dB)
        type: PropertyValue
        value: -9.238
      additional property: Key Name
        type: PropertyValue
        value: B
      additional property: Mode Name
        type: PropertyValue
        value: Minor
album: Cinema Mood
  type: MusicAlbum
  date published: 2024-01-15
album: Korea Opera Songs
  type: MusicAlbum
  date published: 2024-03-15