Petr Serkin
type: MusicGroup
popularity: 21
followers: 354
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x377eb5b4287a0d516d6bc28b1d973a0fa64d924632eed27ede192aa173bbf795
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953407
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953407
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/564580b3-52fe-4779-af8b-f41d1b33a0fb.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/564580b3-52fe-4779-af8b-f41d1b33a0fb.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/564580b3-52fe-4779-af8b-f41d1b33a0fb
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-12T19:24:56Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x377eb5b4287a0d516d6bc28b1d973a0fa64d924632eed27ede192aa173bbf795","name":"Petr Serkin","registered_at":"2026-06-11T21:05:07Z","symbol":"NIM0111369","token_address":"0xa546502ffaae6e113e84e60c9f40feb1f65ac452","type":"artist","uuid":"564580b3-52fe-4779-af8b-f41d1b33a0fb"}
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 0x377eb5b4287a0d516d6bc28b1d973a0fa64d924632eed27ede192aa173bbf795. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/564580b3-52fe-4779-af8b-f41d1b33a0fb.json and https://artists.proofprofile.net/proofs/artist/564580b3-52fe-4779-af8b-f41d1b33a0fb.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-12T19:28:13Z
  text: {"copyright_id":"0x377eb5b4287a0d516d6bc28b1d973a0fa64d924632eed27ede192aa173bbf795","name":"Petr Serkin","registered_at":"2026-06-11T21:05:07Z","symbol":"NIM0111369","token_address":"0xa546502ffaae6e113e84e60c9f40feb1f65ac452","type":"artist","uuid":"564580b3-52fe-4779-af8b-f41d1b33a0fb"}
album: Freedom Experience
  type: MusicAlbum
  date published: 2013-09-15
album: Hanging Around
  type: MusicAlbum
  date published: 2014-03-24
album: Hanging Around
  type: MusicAlbum
  date published: 2014-03-24
album: Woodmaster
  type: MusicAlbum
  date published: 2014-11-28
  track: Dirty Hero
    type: MusicRecording
    duration: PT5M24S
    duration ms: 324350
    explicit: false
    by artist: Petr Serkin
    in album: Woodmaster
      type: MusicAlbum
      date published: 2014-11-28
    isrc code: DEH741411441
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-05T18:15:42+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0x5cd5aaa107b10f7fd6a523f9663d44a3d285878f4eefc3435ead547f5c608035
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 956841
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/956841
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DEH741411441
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-05T22:14:35Z
    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 0x5cd5aaa107b10f7fd6a523f9663d44a3d285878f4eefc3435ead547f5c608035. Chain 2 (Bitcoin): anchored in block 956841 (2026-07-05T22:14:35Z), 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/DEH741411441.
      date published: 2026-07-05T22:14:35Z
    audio: Dirty Hero
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 119.995
      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: 0.847
      additional property: Energy
        type: PropertyValue
        value: 0.557
      additional property: Speechiness
        type: PropertyValue
        value: 0.047
      additional property: Acousticness
        type: PropertyValue
        value: 0.051
      additional property: Instrumentalness
        type: PropertyValue
        value: 0.461
      additional property: Liveness
        type: PropertyValue
        value: 0.132
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.585
      additional property: Loudness (dB)
        type: PropertyValue
        value: -11.6
      additional property: Key Name
        type: PropertyValue
        value: A
      additional property: Mode Name
        type: PropertyValue
        value: Minor
album: Woodmaster
  type: MusicAlbum
  date published: 2014-11-28
album: We Will Greet You
  type: MusicAlbum
  date published: 2015-08-03
album: We Will Greet You
  type: MusicAlbum
  date published: 2015-08-03
album: Magic Roots
  type: MusicAlbum
  date published: 2016-05-16
album: Magic Roots
  type: MusicAlbum
  date published: 2016-05-16
album: Old Tales from the Future
  type: MusicAlbum
  date published: 2017-02-23
album: Old Tales from the Future
  type: MusicAlbum
  date published: 2017-02-23