Еліна Іващенко
type: MusicGroup
popularity: 12
followers: 322
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x25f723a2e92134cb175b9e2f6e22745550540b4a3e3181979d5a99a4f0abdd8f
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953625
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953625
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/2ae7e14a-d7e9-44dc-a07b-99537e370774.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/2ae7e14a-d7e9-44dc-a07b-99537e370774.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/2ae7e14a-d7e9-44dc-a07b-99537e370774
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-14T11:37:06Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x25f723a2e92134cb175b9e2f6e22745550540b4a3e3181979d5a99a4f0abdd8f","name":"Еліна Іващенко","registered_at":"2026-06-14T08:54:38Z","symbol":"NIM0402019","token_address":"0x06080e8dabd806286fcd0536ca921af6e0bb80dd","type":"artist","uuid":"2ae7e14a-d7e9-44dc-a07b-99537e370774"}
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 0x25f723a2e92134cb175b9e2f6e22745550540b4a3e3181979d5a99a4f0abdd8f. Chain 2 (Bitcoin): anchored in block 953625 (2026-06-14T11:37:06Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/2ae7e14a-d7e9-44dc-a07b-99537e370774.json and https://artists.proofprofile.net/proofs/artist/2ae7e14a-d7e9-44dc-a07b-99537e370774.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-14T11:37:06Z
  text: {"copyright_id":"0x25f723a2e92134cb175b9e2f6e22745550540b4a3e3181979d5a99a4f0abdd8f","name":"Еліна Іващенко","registered_at":"2026-06-14T08:54:38Z","symbol":"NIM0402019","token_address":"0x06080e8dabd806286fcd0536ca921af6e0bb80dd","type":"artist","uuid":"2ae7e14a-d7e9-44dc-a07b-99537e370774"}
album: Друзі
  type: MusicAlbum
  date published: 2020-07-29