Sonia Hornatkiewicz
type: MusicGroup
popularity: 2
followers: 61
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x659b4f2fb599cd480ba0eee91ee3dc458d97d6d6c1726bde09fc27c2ceb3d67e
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954069
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954069
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/7a078062-a0b4-4308-9656-5bb94d78fed3.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/7a078062-a0b4-4308-9656-5bb94d78fed3.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/7a078062-a0b4-4308-9656-5bb94d78fed3
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-17T08:30:25Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x659b4f2fb599cd480ba0eee91ee3dc458d97d6d6c1726bde09fc27c2ceb3d67e","name":"Sonia Hornatkiewicz","registered_at":"2026-06-17T08:11:09Z","symbol":"NIM1334226","token_address":"0x23e660f5a44bd5b4c402a47084eedf129762e909","type":"artist","uuid":"7a078062-a0b4-4308-9656-5bb94d78fed3"}
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 0x659b4f2fb599cd480ba0eee91ee3dc458d97d6d6c1726bde09fc27c2ceb3d67e. Chain 2 (Bitcoin): anchored in block 954115 (2026-06-17T15:44:10Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/7a078062-a0b4-4308-9656-5bb94d78fed3.json and https://artists.proofprofile.net/proofs/artist/7a078062-a0b4-4308-9656-5bb94d78fed3.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-17T15:44:10Z
  text: {"copyright_id":"0x659b4f2fb599cd480ba0eee91ee3dc458d97d6d6c1726bde09fc27c2ceb3d67e","name":"Sonia Hornatkiewicz","registered_at":"2026-06-17T08:11:09Z","symbol":"NIM1334226","token_address":"0x23e660f5a44bd5b4c402a47084eedf129762e909","type":"artist","uuid":"7a078062-a0b4-4308-9656-5bb94d78fed3"}
album: Ze Snu
  type: MusicAlbum
  date published: 2022-07-22