Sergey Sadovoy
type: MusicGroup
popularity: 8
followers: 1174
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x8e4034cb737cf9a40d296b0111c2e37716d7b9ab86890c42a7259b035d2111c8
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954342
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954342
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/913e7b00-e67a-44f3-8048-5522294af15d.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/913e7b00-e67a-44f3-8048-5522294af15d.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/913e7b00-e67a-44f3-8048-5522294af15d
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-19T03:22:39Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x8e4034cb737cf9a40d296b0111c2e37716d7b9ab86890c42a7259b035d2111c8","name":"Sergey Sadovoy","registered_at":"2026-06-17T16:21:26Z","symbol":"NIM1451117","token_address":"0xda5c1c93b441209b3970f43c9fb4e4f28e9febac","type":"artist","uuid":"913e7b00-e67a-44f3-8048-5522294af15d"}
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 0x8e4034cb737cf9a40d296b0111c2e37716d7b9ab86890c42a7259b035d2111c8. Chain 2 (Bitcoin): anchored in block 954342 (2026-06-19T03:22:39Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/913e7b00-e67a-44f3-8048-5522294af15d.json and https://artists.proofprofile.net/proofs/artist/913e7b00-e67a-44f3-8048-5522294af15d.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-19T03:22:39Z
  text: {"copyright_id":"0x8e4034cb737cf9a40d296b0111c2e37716d7b9ab86890c42a7259b035d2111c8","name":"Sergey Sadovoy","registered_at":"2026-06-17T16:21:26Z","symbol":"NIM1451117","token_address":"0xda5c1c93b441209b3970f43c9fb4e4f28e9febac","type":"artist","uuid":"913e7b00-e67a-44f3-8048-5522294af15d"}
album: 1685
  type: MusicAlbum
  date published: 1901
  track: TOCCATA & FUGUE IN D MINOR BWV 565
    type: MusicRecording
    duration: PT8M25S
    duration ms: 505212
    explicit: false
    by artist: Sergey Sadovoy
    in album: 1685
      type: MusicAlbum
      date published: 1901
    isrc code: CAGOO2446274
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-03T22:20:18+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x98316a2cb5117cadbeb6c98be6e86d27424fc6e22f88c97da0f2d723d40cea15
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 956639
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/956639
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/CAGOO2446274
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-04T11:19:20Z
    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 0x98316a2cb5117cadbeb6c98be6e86d27424fc6e22f88c97da0f2d723d40cea15. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/CAGOO2446274.
      date published: 2026-07-04T11:19:20Z
    audio: TOCCATA & FUGUE IN D MINOR BWV 565
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 93.684
      additional property: Musical Key
        type: PropertyValue
        value: 2
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 0
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.291
      additional property: Energy
        type: PropertyValue
        value: 0.564
      additional property: Speechiness
        type: PropertyValue
        value: 0.043
      additional property: Acousticness
        type: PropertyValue
        value: 0.679
      additional property: Instrumentalness
        type: PropertyValue
        value: 0.582
      additional property: Liveness
        type: PropertyValue
        value: 0.484
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.133
      additional property: Loudness (dB)
        type: PropertyValue
        value: -10.619
      additional property: Key Name
        type: PropertyValue
        value: D
      additional property: Mode Name
        type: PropertyValue
        value: Minor