Mateusz Macczak
type: MusicGroup
popularity: 2
followers: 17
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x043d0a9d09c2bdaf4573c73df666f06f341b44ebbfd6190eab3c9443031e0e53
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953996
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953996
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/30870bd6-5309-4dd7-83a9-a221e7be8791.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/30870bd6-5309-4dd7-83a9-a221e7be8791.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/30870bd6-5309-4dd7-83a9-a221e7be8791
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-16T20:04:35Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x043d0a9d09c2bdaf4573c73df666f06f341b44ebbfd6190eab3c9443031e0e53","name":"Mateusz Macczak","registered_at":"2026-06-16T06:31:34Z","symbol":"NIM0966900","token_address":"0x0f766e9ae0ae59412f67539973caa14529d53cd5","type":"artist","uuid":"30870bd6-5309-4dd7-83a9-a221e7be8791"}
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 0x043d0a9d09c2bdaf4573c73df666f06f341b44ebbfd6190eab3c9443031e0e53. Chain 2 (Bitcoin): anchored in block 954014 (2026-06-16T22:46:20Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/30870bd6-5309-4dd7-83a9-a221e7be8791.json and https://artists.proofprofile.net/proofs/artist/30870bd6-5309-4dd7-83a9-a221e7be8791.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-16T22:46:20Z
  text: {"copyright_id":"0x043d0a9d09c2bdaf4573c73df666f06f341b44ebbfd6190eab3c9443031e0e53","name":"Mateusz Macczak","registered_at":"2026-06-16T06:31:34Z","symbol":"NIM0966900","token_address":"0x0f766e9ae0ae59412f67539973caa14529d53cd5","type":"artist","uuid":"30870bd6-5309-4dd7-83a9-a221e7be8791"}
album: Nie Wracam
  type: MusicAlbum
  date published: 2024-11-08