Marty Cassidy
type: MusicGroup
genre: hard house
genre: trance
popularity: 2
followers: 76
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x9014ff3f112af296b497c38ce65ad46e885167f704328deb2a9c985768d06894
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954342
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954342
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/87ff5139-52c3-4e8a-80b4-da319a214e3d.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/87ff5139-52c3-4e8a-80b4-da319a214e3d.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/87ff5139-52c3-4e8a-80b4-da319a214e3d
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-19T03:22:39Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x9014ff3f112af296b497c38ce65ad46e885167f704328deb2a9c985768d06894","name":"Marty Cassidy","registered_at":"2026-06-17T13:05:14Z","symbol":"NIM1404269","token_address":"0xaf6afd49e2b221902d15605113f06273783ad9d8","type":"artist","uuid":"87ff5139-52c3-4e8a-80b4-da319a214e3d"}
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 0x9014ff3f112af296b497c38ce65ad46e885167f704328deb2a9c985768d06894. Chain 2 (Bitcoin): anchored in block 954342 (2026-06-19T03:22:39Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/87ff5139-52c3-4e8a-80b4-da319a214e3d.json and https://artists.proofprofile.net/proofs/artist/87ff5139-52c3-4e8a-80b4-da319a214e3d.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-19T03:22:39Z
  text: {"copyright_id":"0x9014ff3f112af296b497c38ce65ad46e885167f704328deb2a9c985768d06894","name":"Marty Cassidy","registered_at":"2026-06-17T13:05:14Z","symbol":"NIM1404269","token_address":"0xaf6afd49e2b221902d15605113f06273783ad9d8","type":"artist","uuid":"87ff5139-52c3-4e8a-80b4-da319a214e3d"}
album: Extraction
  type: MusicAlbum
  date published: 2021-05-28
album: Roll Cage
  type: MusicAlbum
  date published: 2021-10-29
album: Elysium
  type: MusicAlbum
  date published: 2022-09-16
album: Saw Slice
  type: MusicAlbum
  date published: 2022-09-19
album: Abyss
  type: MusicAlbum
  date published: 2024-02-05
album: House on Fire
  type: MusicAlbum
  date published: 2024-10-25
album: Saw Slice (Iain M Remix)
  type: MusicAlbum
  date published: 2025-04-18