Sebastian Kuchczynski
type: MusicGroup
popularity: 3
followers: 254
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x0e7f8d61f3f209a8e3712bd77c8db26a057f40b7a47e2f8f7c1446173dd7a97e
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954784
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954784
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/e5fa1790-7d33-4f42-9a1e-f01360b8ef80.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/e5fa1790-7d33-4f42-9a1e-f01360b8ef80.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/e5fa1790-7d33-4f42-9a1e-f01360b8ef80
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-22T02:53:59Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x0e7f8d61f3f209a8e3712bd77c8db26a057f40b7a47e2f8f7c1446173dd7a97e","name":"Sebastian Kuchczynski","registered_at":"2026-06-21T08:43:37Z","symbol":"NIM1874686","token_address":"0xe034c6d480539589499def974ef58853ed431434","type":"artist","uuid":"e5fa1790-7d33-4f42-9a1e-f01360b8ef80"}
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 0x0e7f8d61f3f209a8e3712bd77c8db26a057f40b7a47e2f8f7c1446173dd7a97e. Chain 2 (Bitcoin): anchored in block 954784 (2026-06-22T02:53:59Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/e5fa1790-7d33-4f42-9a1e-f01360b8ef80.json and https://artists.proofprofile.net/proofs/artist/e5fa1790-7d33-4f42-9a1e-f01360b8ef80.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-22T02:53:59Z
  text: {"copyright_id":"0x0e7f8d61f3f209a8e3712bd77c8db26a057f40b7a47e2f8f7c1446173dd7a97e","name":"Sebastian Kuchczynski","registered_at":"2026-06-21T08:43:37Z","symbol":"NIM1874686","token_address":"0xe034c6d480539589499def974ef58853ed431434","type":"artist","uuid":"e5fa1790-7d33-4f42-9a1e-f01360b8ef80"}
album: Drifting
  type: MusicAlbum
  date published: 2023-06-14
album: Tin Mug
  type: MusicAlbum
  date published: 2023-07-25
album: Yavia
  type: MusicAlbum
  date published: 2023-08-09
album: Promises
  type: MusicAlbum
  date published: 2023-08-24
album: Poloness
  type: MusicAlbum
  date published: 2023-09-08
album: Yavia
  type: MusicAlbum
  date published: 2024-02-23