Matt Katsis
type: MusicGroup
popularity: 4
followers: 1774
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xd462d3e719bc377ac1d10a286aece9a55643790b99589a2a4a02e1c467b295eb
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954066
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954066
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/76226cad-16f2-44a3-9e64-5ccc148a0747.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/76226cad-16f2-44a3-9e64-5ccc148a0747.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/76226cad-16f2-44a3-9e64-5ccc148a0747
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-17T08:11:48Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0xd462d3e719bc377ac1d10a286aece9a55643790b99589a2a4a02e1c467b295eb","name":"Matt Katsis","registered_at":"2026-06-17T06:46:22Z","symbol":"NIM1314044","token_address":"0x466846df432e6e4fb78aabfd56168f3c074b5c70","type":"artist","uuid":"76226cad-16f2-44a3-9e64-5ccc148a0747"}
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 0xd462d3e719bc377ac1d10a286aece9a55643790b99589a2a4a02e1c467b295eb. Chain 2 (Bitcoin): anchored in block 954066 (2026-06-17T08:11:48Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/76226cad-16f2-44a3-9e64-5ccc148a0747.json and https://artists.proofprofile.net/proofs/artist/76226cad-16f2-44a3-9e64-5ccc148a0747.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-17T08:11:48Z
  text: {"copyright_id":"0xd462d3e719bc377ac1d10a286aece9a55643790b99589a2a4a02e1c467b295eb","name":"Matt Katsis","registered_at":"2026-06-17T06:46:22Z","symbol":"NIM1314044","token_address":"0x466846df432e6e4fb78aabfd56168f3c074b5c70","type":"artist","uuid":"76226cad-16f2-44a3-9e64-5ccc148a0747"}
album: The Burke & Wills Sessions
  type: MusicAlbum
  date published: 2016-02-17
album: Need You Here
  type: MusicAlbum
  date published: 2016-11-07
album: Colours
  type: MusicAlbum
  date published: 2017-05-11
album: All I Wanna Do Is Fly - Single
  type: MusicAlbum
  date published: 2017-08-30
album: Live at the Wheaty
  type: MusicAlbum
  date published: 2019
album: Love & Gravity
  type: MusicAlbum
  date published: 2020-11-20
album: Bones
  type: MusicAlbum
  date published: 2021-02-11
album: The Front Page
  type: MusicAlbum
  date published: 2021-07-29
album: Over the Horizon
  type: MusicAlbum
  date published: 2021-12-10
album: Transits, Pt. 1
  type: MusicAlbum
  date published: 2023-03-09
album: Transits, Pt. 2
  type: MusicAlbum
  date published: 2023-05-19
album: Transits
  type: MusicAlbum
  date published: 2023-06-04