Tadeusz Majerczyk
type: MusicGroup
popularity: 10
followers: 303
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x56754d3d54d77399fa8ee2e1c3f086d5a0dedfabd47047fc606f1fa305ef93e1
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954667
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954667
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/b1805310-de66-4754-b9db-25a14454a0be.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/b1805310-de66-4754-b9db-25a14454a0be.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/b1805310-de66-4754-b9db-25a14454a0be
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-21T07:29:20Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x56754d3d54d77399fa8ee2e1c3f086d5a0dedfabd47047fc606f1fa305ef93e1","name":"Tadeusz Majerczyk","registered_at":"2026-06-20T13:01:26Z","symbol":"NIM1616834","token_address":"0x187ddbf9e11a219ff6105eb241767d3fce1322dc","type":"artist","uuid":"b1805310-de66-4754-b9db-25a14454a0be"}
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 0x56754d3d54d77399fa8ee2e1c3f086d5a0dedfabd47047fc606f1fa305ef93e1. Chain 2 (Bitcoin): anchored in block 954667 (2026-06-21T07:29:20Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/b1805310-de66-4754-b9db-25a14454a0be.json and https://artists.proofprofile.net/proofs/artist/b1805310-de66-4754-b9db-25a14454a0be.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-21T07:29:20Z
  text: {"copyright_id":"0x56754d3d54d77399fa8ee2e1c3f086d5a0dedfabd47047fc606f1fa305ef93e1","name":"Tadeusz Majerczyk","registered_at":"2026-06-20T13:01:26Z","symbol":"NIM1616834","token_address":"0x187ddbf9e11a219ff6105eb241767d3fce1322dc","type":"artist","uuid":"b1805310-de66-4754-b9db-25a14454a0be"}
album: Więzienne Wczasy
  type: MusicAlbum
  date published: 2004-05-30
album: Więzienne Wczasy 2
  type: MusicAlbum
  date published: 2010-04-20