Katai
type: MusicGroup
genre: progressive house
popularity: 3
followers: 219
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x73bec71c0f8b0f349cf826c6a3e7dab2fc2329eb1d40793fefe1324179cc2f29
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954580
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954580
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/b65763da-57ee-4dda-b931-3eaed295b1ad.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/b65763da-57ee-4dda-b931-3eaed295b1ad.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/b65763da-57ee-4dda-b931-3eaed295b1ad
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-20T17:48:00Z
additional property: OTSCanonicalRecord
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 0x73bec71c0f8b0f349cf826c6a3e7dab2fc2329eb1d40793fefe1324179cc2f29. Chain 2 (Bitcoin): anchored in block 954580 (2026-06-20T17:48:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/b65763da-57ee-4dda-b931-3eaed295b1ad.json and https://artists.proofprofile.net/proofs/artist/b65763da-57ee-4dda-b931-3eaed295b1ad.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-20T17:48:00Z
album: Turn Of Time
  type: MusicAlbum
  date published: 2002-02-01
album: Turn Of Time
  type: MusicAlbum
  date published: 2002-04-29
album: Rogue
  type: MusicAlbum
  date published: 2018-11-09
album: Sin of Wrath
  type: MusicAlbum
  date published: 2021-05-12
album: Rogue 1.5
  type: MusicAlbum
  date published: 2021-05-12
album: Rogue 1.5
  type: MusicAlbum
  date published: 2021-05-12
album: Overkill
  type: MusicAlbum
  date published: 2021-05-13
album: Overkill
  type: MusicAlbum
  date published: 2021-05-13
album: Beside me
  type: MusicAlbum
  date published: 2021-07-10
album: Everyday the 4th (Seb Sosa)
  type: MusicAlbum
  date published: 2021-08-01
album: When It's real
  type: MusicAlbum
  date published: 2021-11-02
album: When It's real
  type: MusicAlbum
  date published: 2021-11-02
album: Rogue 3
  type: MusicAlbum
  date published: 2021-11-09
album: Rogue 3
  type: MusicAlbum
  date published: 2021-11-09
album: Leavin
  type: MusicAlbum
  date published: 2022-01-04
album: Full reflect
  type: MusicAlbum
  date published: 2022-02-18
album: Lone Wolf 2
  type: MusicAlbum
  date published: 2023-10-27
album: Kould b
  type: MusicAlbum
  date published: 2023-10-27
album: You & Me
  type: MusicAlbum
  date published: 2023-10-27
album: 501
  type: MusicAlbum
  date published: 2023-10-30
album: Thru the Rain
  type: MusicAlbum
  date published: 2024-07-31
album: I want you
  type: MusicAlbum
  date published: 2025-09-17
album: Hit the Road
  type: MusicAlbum
  date published: 2025-11-09