Marek Stefański
type: MusicGroup
popularity: 2
followers: 89
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x53539361debbd1380ddda61017ef13611a90e43bab2f3f520dc37bc1db43050b
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953997
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953997
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/1c361f8b-81dc-4bbe-acb5-5a73bb88b269.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/1c361f8b-81dc-4bbe-acb5-5a73bb88b269.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/1c361f8b-81dc-4bbe-acb5-5a73bb88b269
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-16T20:07:57Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x53539361debbd1380ddda61017ef13611a90e43bab2f3f520dc37bc1db43050b","name":"Marek Stefański","registered_at":"2026-06-15T23:25:53Z","symbol":"NIM0865225","token_address":"0x7124de1f0b4d28e07742f387de332a71177dff7d","type":"artist","uuid":"1c361f8b-81dc-4bbe-acb5-5a73bb88b269"}
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 0x53539361debbd1380ddda61017ef13611a90e43bab2f3f520dc37bc1db43050b. Chain 2 (Bitcoin): anchored in block 953997 (2026-06-16T20:07:57Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/1c361f8b-81dc-4bbe-acb5-5a73bb88b269.json and https://artists.proofprofile.net/proofs/artist/1c361f8b-81dc-4bbe-acb5-5a73bb88b269.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-16T20:07:57Z
  text: {"copyright_id":"0x53539361debbd1380ddda61017ef13611a90e43bab2f3f520dc37bc1db43050b","name":"Marek Stefański","registered_at":"2026-06-15T23:25:53Z","symbol":"NIM0865225","token_address":"0x7124de1f0b4d28e07742f387de332a71177dff7d","type":"artist","uuid":"1c361f8b-81dc-4bbe-acb5-5a73bb88b269"}
album: Romantyczna Muzyka Organowa
  type: MusicAlbum
  date published: 2013-08-01
album: Organ of the Mother of God of the Scapular Church in Szymbark
  type: MusicAlbum
  date published: 2013-09-01
album: Organ of the Mother of God of the Scapular Church in Szymbark
  type: MusicAlbum
  date published: 2013-09-01
album: Sacrum po góralsku
  type: MusicAlbum
  date published: 2020-11-25