Marton di Katz
type: MusicGroup
popularity: 2
followers: 86
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xd11e87c0dcbb96e5f99ff3ca7fcbe795533366d11d5bbec1991999fa90efc014
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/b9f1e725-a110-40c8-8367-cf1472a45ace.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/b9f1e725-a110-40c8-8367-cf1472a45ace.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/b9f1e725-a110-40c8-8367-cf1472a45ace
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-21T07:29:20Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xd11e87c0dcbb96e5f99ff3ca7fcbe795533366d11d5bbec1991999fa90efc014","name":"Marton di Katz","registered_at":"2026-06-20T16:55:58Z","symbol":"NIM1658799","token_address":"0x4f94b5a414d23a39ed56373458f0d215f3c84971","type":"artist","uuid":"b9f1e725-a110-40c8-8367-cf1472a45ace"}
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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd11e87c0dcbb96e5f99ff3ca7fcbe795533366d11d5bbec1991999fa90efc014. 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/b9f1e725-a110-40c8-8367-cf1472a45ace.json and https://artists.proofprofile.net/proofs/artist/b9f1e725-a110-40c8-8367-cf1472a45ace.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-21T07:29:20Z
  text: {"copyright_id":"0xd11e87c0dcbb96e5f99ff3ca7fcbe795533366d11d5bbec1991999fa90efc014","name":"Marton di Katz","registered_at":"2026-06-20T16:55:58Z","symbol":"NIM1658799","token_address":"0x4f94b5a414d23a39ed56373458f0d215f3c84971","type":"artist","uuid":"b9f1e725-a110-40c8-8367-cf1472a45ace"}
album: Après-Ski '21
  type: MusicAlbum
  date published: 2021-01-30
album: Schlaaf ii
  type: MusicAlbum
  date published: 2021-07-16
album: Mir regled de Scheiss
  type: MusicAlbum
  date published: 2022-07-15
album: Run
  type: MusicAlbum
  date published: 2023-06-02