Radko Stojanov
type: MusicGroup
popularity: 2
followers: 2
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xe9df3fdf9b4ceade252d531872de70d6c7a76bc228aea60b587030d66f0a3cb8
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954533
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954533
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/a292802b-012e-4ec9-8afc-d5b56db1f0df.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/a292802b-012e-4ec9-8afc-d5b56db1f0df.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/a292802b-012e-4ec9-8afc-d5b56db1f0df
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-20T08:57:02Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xe9df3fdf9b4ceade252d531872de70d6c7a76bc228aea60b587030d66f0a3cb8","name":"Radko Stojanov","registered_at":"2026-06-20T06:37:01Z","symbol":"NIM1541434","token_address":"0x5b611ec57a4cb477250f2b6fe0255292971390fe","type":"artist","uuid":"a292802b-012e-4ec9-8afc-d5b56db1f0df"}
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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe9df3fdf9b4ceade252d531872de70d6c7a76bc228aea60b587030d66f0a3cb8. Chain 2 (Bitcoin): anchored in block 954533 (2026-06-20T08:57:02Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/a292802b-012e-4ec9-8afc-d5b56db1f0df.json and https://artists.proofprofile.net/proofs/artist/a292802b-012e-4ec9-8afc-d5b56db1f0df.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-20T08:57:02Z
  text: {"copyright_id":"0xe9df3fdf9b4ceade252d531872de70d6c7a76bc228aea60b587030d66f0a3cb8","name":"Radko Stojanov","registered_at":"2026-06-20T06:37:01Z","symbol":"NIM1541434","token_address":"0x5b611ec57a4cb477250f2b6fe0255292971390fe","type":"artist","uuid":"a292802b-012e-4ec9-8afc-d5b56db1f0df"}