Roman Polonsky
type: MusicGroup
genre: future house
popularity: 4
followers: 167
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x45f144dca18b3ace64f2f90210c02e2f2aae89f0e9b25a3e5cae76cdb8f5e3f1
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954055
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954055
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/43c7fa63-60d7-40f7-8c06-b5ea9597688f.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/43c7fa63-60d7-40f7-8c06-b5ea9597688f.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/43c7fa63-60d7-40f7-8c06-b5ea9597688f
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-17T05:51:24Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x45f144dca18b3ace64f2f90210c02e2f2aae89f0e9b25a3e5cae76cdb8f5e3f1","name":"Roman Polonsky","registered_at":"2026-06-16T13:11:45Z","symbol":"NIM1062396","token_address":"0xa94305f4d914dcb74857ab7536e634f5113af2f3","type":"artist","uuid":"43c7fa63-60d7-40f7-8c06-b5ea9597688f"}
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 0x45f144dca18b3ace64f2f90210c02e2f2aae89f0e9b25a3e5cae76cdb8f5e3f1. Chain 2 (Bitcoin): anchored in block 954055 (2026-06-17T05:51:24Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/43c7fa63-60d7-40f7-8c06-b5ea9597688f.json and https://artists.proofprofile.net/proofs/artist/43c7fa63-60d7-40f7-8c06-b5ea9597688f.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-17T05:51:24Z
  text: {"copyright_id":"0x45f144dca18b3ace64f2f90210c02e2f2aae89f0e9b25a3e5cae76cdb8f5e3f1","name":"Roman Polonsky","registered_at":"2026-06-16T13:11:45Z","symbol":"NIM1062396","token_address":"0xa94305f4d914dcb74857ab7536e634f5113af2f3","type":"artist","uuid":"43c7fa63-60d7-40f7-8c06-b5ea9597688f"}
album: Сердце кричит
  type: MusicAlbum
  date published: 2011-03-05
album: I Still Care
  type: MusicAlbum
  date published: 2016-02-08
album: More Than Friend... (feat. Oleg Jam)
  type: MusicAlbum
  date published: 2016-06-12
album: What's It Gonna Be (Extended)
  type: MusicAlbum
  date published: 2016-11-30
album: Pretty Elf
  type: MusicAlbum
  date published: 2017
album: Ти одна
  type: MusicAlbum
  date published: 2017-07-20
track: Music

Music
type: MusicRecording
duration: PT2M59S
duration ms: 179047
explicit: false
by artist: Sagan
by artist: Roman Polonsky
in album: Music
  type: MusicAlbum
  date published: 2017-06-08
isrc code: NLBW51700422
additional property: CopyrightID
additional property: CopyrightStatus
  type: PropertyValue
  value: registered
additional property: CopyrightRegisteredAt
  type: PropertyValue
  value: 2026-06-22T09:04:41+00:00
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x047b7d8d1f3ea1243a57f749fbb3a504171827a2c1a469950ec162a6152f0e43
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 956304
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/956304
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/NLBW51700422
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-07-02T03:55:08+00:00
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
additional property: ProofProfileEvidenceStatus
  type: PropertyValue
  value: verified-cc-db-prod
additional property: TokenDeploymentConfirmed
  type: PropertyValue
  value: true
additional property: ContentHash
additional property: BitcoinBlock
  type: PropertyValue
  value: 956304
additional property: BitcoinTime
  type: PropertyValue
  value: 2026-07-02T03:55:08+00:00
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x047b7d8d1f3ea1243a57f749fbb3a504171827a2c1a469950ec162a6152f0e43. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/NLBW51700422.
  date published: 2026-07-02T05:09:12Z
audio: Music
  type: AudioObject
  additional property: Tempo (BPM)
    type: PropertyValue
    value: 135.607
  additional property: Musical Key
    type: PropertyValue
    value: 9
  additional property: Mode (Major/Minor)
    type: PropertyValue
    value: 0
  additional property: Time Signature
    type: PropertyValue
    value: 5
  additional property: Danceability
    type: PropertyValue
    value: 0.636
  additional property: Energy
    type: PropertyValue
    value: 0.914
  additional property: Speechiness
    type: PropertyValue
    value: 0.176
  additional property: Acousticness
    type: PropertyValue
    value: 0.142
  additional property: Instrumentalness
    type: PropertyValue
    value: 0
  additional property: Liveness
    type: PropertyValue
    value: 0.402
  additional property: Valence (Positivity)
    type: PropertyValue
    value: 0.488
  additional property: Loudness (dB)
    type: PropertyValue
    value: -6.055
  additional property: Key Name
    type: PropertyValue
    value: A
  additional property: Mode Name
    type: PropertyValue
    value: Minor