Inna Poroshina
type: MusicGroup
genre: classical piano
popularity: 9
followers: 189
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xcf9288746eab6d6296f5c423d7d336bde1b80fc6b4141a4b4cbd84c298805b23
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954500
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954500
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/9cab8a12-2dc0-4fc9-818e-165c055789c7.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/9cab8a12-2dc0-4fc9-818e-165c055789c7.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/9cab8a12-2dc0-4fc9-818e-165c055789c7
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-20T04:47:29Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xcf9288746eab6d6296f5c423d7d336bde1b80fc6b4141a4b4cbd84c298805b23","name":"Inna Poroshina","registered_at":"2026-06-20T03:58:14Z","symbol":"NIM1505523","token_address":"0x8ac681afc5f0c93e599c92788e1536178d76ba7c","type":"artist","uuid":"9cab8a12-2dc0-4fc9-818e-165c055789c7"}
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 0xcf9288746eab6d6296f5c423d7d336bde1b80fc6b4141a4b4cbd84c298805b23. Chain 2 (Bitcoin): anchored in block 954500 (2026-06-20T04:47:29Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/9cab8a12-2dc0-4fc9-818e-165c055789c7.json and https://artists.proofprofile.net/proofs/artist/9cab8a12-2dc0-4fc9-818e-165c055789c7.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-20T04:47:29Z
  text: {"copyright_id":"0xcf9288746eab6d6296f5c423d7d336bde1b80fc6b4141a4b4cbd84c298805b23","name":"Inna Poroshina","registered_at":"2026-06-20T03:58:14Z","symbol":"NIM1505523","token_address":"0x8ac681afc5f0c93e599c92788e1536178d76ba7c","type":"artist","uuid":"9cab8a12-2dc0-4fc9-818e-165c055789c7"}