Mark Choi
type: MusicGroup
popularity: 12
followers: 177
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x4eab51c5fd0da8b25e7c99312d7ec140922514f5ade9c6d46cc96f96512b80e0
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953750
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953750
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/acda23e9-c09f-4b3a-9db2-cdae83be8579.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/acda23e9-c09f-4b3a-9db2-cdae83be8579.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/acda23e9-c09f-4b3a-9db2-cdae83be8579
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-15T06:12:23Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x4eab51c5fd0da8b25e7c99312d7ec140922514f5ade9c6d46cc96f96512b80e0","name":"Mark Choi","registered_at":"2026-06-14T22:37:04Z","symbol":"NIM0598178","token_address":"0x6eb4b75aca1ec76ccefadf4f1d84567b0798b793","type":"artist","uuid":"acda23e9-c09f-4b3a-9db2-cdae83be8579"}
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 0x4eab51c5fd0da8b25e7c99312d7ec140922514f5ade9c6d46cc96f96512b80e0. Chain 2 (Bitcoin): anchored in block 953778 (2026-06-15T11:57:35Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/acda23e9-c09f-4b3a-9db2-cdae83be8579.json and https://artists.proofprofile.net/proofs/artist/acda23e9-c09f-4b3a-9db2-cdae83be8579.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-15T11:57:35Z
  text: {"copyright_id":"0x4eab51c5fd0da8b25e7c99312d7ec140922514f5ade9c6d46cc96f96512b80e0","name":"Mark Choi","registered_at":"2026-06-14T22:37:04Z","symbol":"NIM0598178","token_address":"0x6eb4b75aca1ec76ccefadf4f1d84567b0798b793","type":"artist","uuid":"acda23e9-c09f-4b3a-9db2-cdae83be8579"}
album: Journey of the Heart (A Ni No Kuni Tribute)
  type: MusicAlbum
  date published: 2020-11-13
album: Path Of Kami Prologue (Original Game Soundtrack)
  type: MusicAlbum
  date published: 2021-06-25
album: Pilgrim's Destiny (Original Game Soundtrack)
  type: MusicAlbum
  date published: 2022-02-11
album: A Funeral Of Flowers (From "Fire Emblem: Three Houses")
  type: MusicAlbum
  date published: 2022-03-17
album: Divinity: Original Sin 2 - Piano Arrangements
  type: MusicAlbum
  date published: 2022-06-10
album: Lullaby of Woe (The Witcher 3: Wild Hunt)
  type: MusicAlbum
  date published: 2022-08-04
album: Anchored Hearts: A Tale of Destiny (Original Game Soundtrack)
  type: MusicAlbum
  date published: 2024-07-31
album: 舞台『言の葉の庭～The Garden of Words～』 (Soundtrack)
  type: MusicAlbum
  date published: 2024-08-10
album: The Garden of Words (Soundtrack)
  type: MusicAlbum
  date published: 2024-08-10
album: Instrument of Surrender (from "Disco Elysium")
  type: MusicAlbum
  date published: 2024-10-14
album: Final Fantasy Tactics Timelines Piano Collection
  type: MusicAlbum
  date published: 2025-09-09