Ivan Sobolev
type: MusicGroup
popularity: 2
followers: 144
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x183bd53f4a85f20e82d4f4fa5abdc5ee035bc23be7929e9a189fa9ba6f84c019
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954134
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954134
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/7ea23487-b5c2-4748-a321-0f139f004b8d.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/7ea23487-b5c2-4748-a321-0f139f004b8d.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/7ea23487-b5c2-4748-a321-0f139f004b8d
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-17T19:41:05Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x183bd53f4a85f20e82d4f4fa5abdc5ee035bc23be7929e9a189fa9ba6f84c019","name":"Ivan Sobolev","registered_at":"2026-06-17T09:44:41Z","symbol":"NIM1356527","token_address":"0x9d4404d29a24f0f67020bc6dd0f9194343f6440e","type":"artist","uuid":"7ea23487-b5c2-4748-a321-0f139f004b8d"}
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 0x183bd53f4a85f20e82d4f4fa5abdc5ee035bc23be7929e9a189fa9ba6f84c019. Chain 2 (Bitcoin): anchored in block 954174 (2026-06-18T03:01:36Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/7ea23487-b5c2-4748-a321-0f139f004b8d.json and https://artists.proofprofile.net/proofs/artist/7ea23487-b5c2-4748-a321-0f139f004b8d.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-18T03:01:36Z
  text: {"copyright_id":"0x183bd53f4a85f20e82d4f4fa5abdc5ee035bc23be7929e9a189fa9ba6f84c019","name":"Ivan Sobolev","registered_at":"2026-06-17T09:44:41Z","symbol":"NIM1356527","token_address":"0x9d4404d29a24f0f67020bc6dd0f9194343f6440e","type":"artist","uuid":"7ea23487-b5c2-4748-a321-0f139f004b8d"}
album: Tears of My Love
  type: MusicAlbum
  date published: 2017-06-01
album: Silence
  type: MusicAlbum
  date published: 2023-05-16
album: Spring
  type: MusicAlbum
  date published: 2023-08-05
album: Dream in the River of Time
  type: MusicAlbum
  date published: 2023-09-29
album: Silent Echoes of Alone
  type: MusicAlbum
  date published: 2024-03-04
album: Nostalgia
  type: MusicAlbum
  date published: 2024-07-13
album: Fragments
  type: MusicAlbum
  date published: 2024-07-20
album: Dreamy
  type: MusicAlbum
  date published: 2024-08-05
album: Opal Sky
  type: MusicAlbum
  date published: 2024-08-13
album: Sound Shards
  type: MusicAlbum
  date published: 2024-08-15
album: Passing Landscapes
  type: MusicAlbum
  date published: 2025-02-27
album: Nostalgia, Vol. 2
  type: MusicAlbum
  date published: 2025-05-12