Darya Sergiyenko
type: MusicGroup
popularity: 13
followers: 185
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x5b71b12f9a849bf0d94e7d62b4e9af15acef81d047b093a0a0e266ad4c794053
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953817
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953817
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/f8105334-e7ac-48a2-9a38-7306d0fdc6e9.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/f8105334-e7ac-48a2-9a38-7306d0fdc6e9.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/f8105334-e7ac-48a2-9a38-7306d0fdc6e9
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-15T18:10:31Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x5b71b12f9a849bf0d94e7d62b4e9af15acef81d047b093a0a0e266ad4c794053","name":"Darya Sergiyenko","registered_at":"2026-06-15T06:35:11Z","symbol":"NIM0712359","token_address":"0x4f3cf4d5731f95c4b5902199a185841e15c41def","type":"artist","uuid":"f8105334-e7ac-48a2-9a38-7306d0fdc6e9"}
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 0x5b71b12f9a849bf0d94e7d62b4e9af15acef81d047b093a0a0e266ad4c794053. Chain 2 (Bitcoin): anchored in block 953817 (2026-06-15T18:10:31Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/f8105334-e7ac-48a2-9a38-7306d0fdc6e9.json and https://artists.proofprofile.net/proofs/artist/f8105334-e7ac-48a2-9a38-7306d0fdc6e9.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-15T18:10:31Z
  text: {"copyright_id":"0x5b71b12f9a849bf0d94e7d62b4e9af15acef81d047b093a0a0e266ad4c794053","name":"Darya Sergiyenko","registered_at":"2026-06-15T06:35:11Z","symbol":"NIM0712359","token_address":"0x4f3cf4d5731f95c4b5902199a185841e15c41def","type":"artist","uuid":"f8105334-e7ac-48a2-9a38-7306d0fdc6e9"}