QNT (Quant) 是什麼？串接區塊鏈與銀行支付系統的 Overledger 互通層與其授權代幣

Quant 是英國 Quant Network Ltd 開發的企業級跨鏈互通與 programmable money 基礎設施，QNT 為其原生 utility token，用於支付 Overledger 授權費、Fusion Rollup 的 gas 與執行費，以及 trusted node 的 staking。

Quant（QNT） 由 Gilbert Verdian 於 2015 年 9 月 28 日在倫敦創立 Quant Network Ltd。Verdian 從事資安工作逾 20 年，曾在英國財政部（HM Treasury）、澳洲新南威爾斯州衛生部（NSW Health）擔任資安主管，也曾任英國支付基礎設施營運商 Vocalink（現屬 Mastercard）的資安長。核心產品 Overledger 是一套 API 連接層，官方將其描述為「區塊鏈作業系統」，讓銀行與企業不必為每條鏈分別開發介接，就能在多條公有鏈、私有鏈與傳統金融系統之間發行、移轉與監控資產。

QNT 是部署在 Ethereum 上的 ERC-20 代幣，18 位小數，2018 年 4 月經 ICO 發行，總供給固定為 14,612,493 枚，不會增發。依官方提交給 Blockworks 的 token transparency filing，QNT 不具任何 governance 權利，也不代表 Quant Network Ltd 的股權或分潤權；專案沒有 DAO、沒有基金會，也沒有協議金庫，營運由公司主體直接掌控。2026 年 9 月 24 日，美國支付營運商 The Clearing House 宣布選定 Quant 作為其 On-Chain Money Initiative 的技術供應商，QNT 價格在隨後一週大幅波動，市場關注度明顯升高。

QNT 的核心特色

1. Overledger：以 API 串接多鏈與既有金融系統

Overledger 的定位是「連接器」：開發者透過統一的 API、OAuth 2.0 授權與 JWT bearer token 存取多條區塊鏈，不需要自行處理各鏈的節點、簽章與訊息格式。Overledger 2.0 起把功能從 SDK 移往 API，並支援 Open API 3 標準。在銀行場景中，Quant 也提供「Tokenised Deposits-as-a-Service」，讓規模較小的銀行不必自建基礎設施即可發行與移轉 tokenized deposits [Blockworks Filing；The Clearing House 新聞稿]。

2. Programmable money：Quant Flow 與 PayScript

Quant 於 2025 年 5 月 22 日宣布推出 Quant Flow，這是以白牌（white-label）方式提供給歐洲、中東與亞太地區銀行與企業的 programmable money 平台，可在帳戶層級設定自動化支付規則，例如條件達成才放款、在不同主體間自動調度流動性。底層的 PayScript 是 Quant 公開於 GitHub 的領域專用語言（DSL），以 Groovy 為基礎，用來在銀行系統中撰寫可程式化的支付邏輯。

3. Fusion Rollup：多帳本 Layer 2.5 執行環境

Quant 於 2026 年 6 月 2 日宣布 Fusion Rollup 上線 mainnet。官方表示這是「全球首個 multi-ledger rollup」，上線時連接 74 個區塊鏈網路，並可把同一資產在多條鏈上的版本合併為單一 canonical asset（例如 uUSDC）。依官方 filing，Fusion Rollup 將以 QNT 作為 gas 與執行費的原生代幣，trusted node 營運者須 stake QNT 參與並賺取獎勵；sequencer 由 Quant 自行擔任，只有經授權的鏈與代幣才能加入。74 個網路的數字由官方自行公布，尚未見獨立第三方驗證。

QNT 的用途是什麼？

  • Overledger 授權費： 依 2021 年 12 月公布的授權機制與 Overledger 2.1.5 版本說明，正式環境（mainnet）的年度授權費為 £100，以 QNT 透過 MetaMask 支付；sandbox 測試環境免費。
  • Fusion Rollup gas 與執行費： 官方 filing 表示 multi-ledger rollup 將以 QNT 支付 gas 與執行費，filing 以未來式描述，目前實際費用規模未揭露。
  • Trusted node staking： 節點營運者 stake QNT 以參與 Fusion Rollup 的節點計畫並取得 QNT 獎勵；staking 不附帶任何 governance 權利。
  • 平台服務付款選項： 官方 filing 同時載明用戶可用美元支付平台費用，或以 QNT 訂閱。換言之，使用 Quant 服務不必然需要購買 QNT。
  • 交易與轉帳： 作為 ERC-20 代幣，QNT 可在中心化交易所交易，也可存放於支援 Ethereum 的自託管錢包（self-custody）。

投資 QNT 需留意的市場隱患與重要風險揭露

以下數據截取日期：2026/11/10。依 CoinGecko，QNT 價格約 191 美元，市值約 27.8 億美元。

  • 發行人與控制結構：
    QNT 現行營運主體為英國 Quant Network Ltd，2018 年發行代幣的主體已更名。依英國公司登記資料，其最終控制方為一信託結構的受託人。
  • 營收結構：
    依英國營運公司經審計的 2025 會計年度財報，營收約 99.8% 來自與最終控制方共同控制的關係企業。
  • 合作消息與代幣的關聯：
    近期的金融機構合作公告，都沒有說明 QNT 代幣在其中扮演什麼角色。合作消息對代幣的實際影響，應審慎看待。
  • 價格波動：
    2026 年 9 月下旬相關公告後，QNT 數日內上漲約 4 倍，其後回落約三分之一。目前市值水準受短期事件影響較大，屬高波動資產。
  • 供給數字口徑不一：
    合約顯示的總量、發行人公布的有效供給，以及各資料平台的流通量並不一致，參考市值資料時應留意口徑差異。
  • 早期配置與大額持有：
    2018 年公司保留的代幣已無鎖倉限制。鏈上紀錄顯示，部分自 2018 年起未曾移動的大額持有地址，在 2026 年 9 月下旬價格高點後轉出代幣，相關部位變動可能影響市場供需。

總結

Quant 是一家以 Overledger 為核心、面向銀行與企業的跨鏈互通與 programmable money 供應商，近兩年取得 UK Finance GBTD、The Clearing House On-Chain Money Initiative 等可由合作方原始文件查證的機構合作。QNT 是固定供給 14,612,493 枚的 ERC-20 utility token，用於 Overledger 授權費、Fusion Rollup gas 與節點 staking，但不具治理權或分潤權，且平台費可用美元支付，公司業務成長與代幣需求之間缺乏強制連結。評估 QNT 時，須同時考量中心化控制、公司持幣約三成、衍生品交易比重偏高，以及 2027 年上半年 The Clearing House 網路能否如期上線並實際產生以 QNT 計價的費用。

參考資料與官方連結

免責聲明：本文內容僅供資訊參考，不構成任何投資建議或買賣邀約。虛擬資產價格波動劇烈，可能損失全部本金；過往表現不代表未來結果。投資前請審慎評估自身財務狀況與風險承受度，並自行查證相關資訊。

What is QNT (Quant)? The Overledger Interoperability Layer Linking Blockchains to Bank Payment Systems, and Its Licence Token

Quant is an enterprise interoperability and programmable money infrastructure built by UK-based Quant Network Ltd. QNT is its native utility token, used to pay Overledger licence fees, gas and execution fees on the Fusion Rollup, and for trusted-node staking.

Quant (QNT) traces back to Quant Network Ltd, which Gilbert Verdian founded in London on 28 September 2015. Verdian spent more than 20 years in cybersecurity, including security leadership roles at HM Treasury, NSW Health in Australia and Vocalink, the UK payments infrastructure operator now owned by Mastercard. The company’s core product, Overledger, is an API connectivity layer that Quant describes as a “blockchain operating system”. It lets banks and enterprises issue, move and monitor assets across public chains, private chains and legacy financial systems without building a separate integration for each network [Blockworks Token Transparency Filing].

QNT is an ERC-20 token on Ethereum with 18 decimals. It was issued through an ICO in April 2018 and has a fixed total supply of 14,612,493 tokens with no further issuance. According to Quant’s token transparency filing with Blockworks, QNT carries no governance rights and represents no equity or profit share in Quant Network Ltd. There is no DAO, no foundation and no protocol treasury; the company operates the protocol directly. On 24 September 2026, US payments operator The Clearing House announced it had selected Quant as the technology provider for its On-Chain Money Initiative, and QNT’s price swung sharply in the following week as market attention rose.

Core Features of QNT

1. Overledger: one API across chains and legacy finance

Overledger works as a connector. Developers reach multiple blockchains through a unified API with OAuth 2.0 authorisation and JWT bearer tokens, without running nodes or handling each chain’s signing and message formats. Since Overledger 2.0, functionality has moved from SDKs to APIs with Open API 3 support. For banks, Quant also offers “Tokenised Deposits-as-a-Service”, which lets smaller institutions issue and move tokenized deposits without building their own infrastructure [Blockworks Filing; The Clearing House press release].

2. Programmable money: Quant Flow and PayScript

On 22 May 2025 Quant announced the rollout of Quant Flow, a white-label programmable money platform for banks and corporates in Europe, the Middle East and APAC. It lets institutions set automated payment rules at the account level, such as releasing funds only when conditions are met or moving liquidity between entities automatically. PayScript, which Quant has published on GitHub, is a Groovy-based domain-specific language (DSL) for writing programmable payment logic inside banking systems.

3. Fusion Rollup: a multi-ledger Layer 2.5 environment

Quant announced on 2 June 2026 that the Fusion Rollup was live on mainnet. The company calls it the “world’s first multi-ledger rollup”, says it launched connected to 74 blockchain networks, and says it can merge copies of the same asset on different chains into a single canonical asset (for example uUSDC). Per the filing, the rollup will use QNT as its native token for gas and execution fees, and trusted-node operators stake QNT to take part and earn rewards. Quant itself acts as the sequencer, and only authorised chains and tokens can join. The figure of 74 networks is self-reported and has not been independently verified.

What Is QNT Used For?

  • Overledger licence fees: Under the licence scheme announced in December 2021 and the Overledger 2.1.5 release notes, mainnet access costs £100 a year, paid in QNT via MetaMask; sandbox access is free.
  • Fusion Rollup gas and execution fees: The filing states the multi-ledger rollup will use QNT for gas and execution fees. It describes this in the future tense, and actual fee volumes are not disclosed.
  • Trusted-node staking: Node operators stake QNT to join the Fusion Rollup node programme and earn QNT rewards; staking confers no governance rights.
  • Platform payment options: The same filing states users can pay platform fees in US dollars or subscribe with QNT, so using Quant’s services does not necessarily require buying QNT.
  • Trading and transfers: As an ERC-20 token, QNT trades on centralised exchanges and can be held in any Ethereum-compatible self-custody wallet.

Market Risks and Key Risk Disclosures for QNT Investors

Data as of 2026/11/10. According to CoinGecko, QNT traded at about US$191, with a market cap of about US$2.78 billion.

  • Issuer and control structure:
    QNT’s current operating entity is Quant Network Ltd in the UK; the entity that issued the token in 2018 has since been renamed. UK company records show its ultimate controlling party is the trustee of a trust structure.
  • Revenue structure:
    According to the UK operating company’s audited accounts for financial year 2025, about 99.8% of revenue came from related companies under common control with the ultimate controlling party.
  • Partnerships and the token:
    Recent announcements of partnerships with financial institutions do not explain what role, if any, the QNT token plays. The actual effect of such news on the token should be viewed with caution.
  • Price volatility:
    After the related announcements in late September 2026, QNT rose about fourfold within days and then gave back about a third. Its current market cap is heavily shaped by short-term events, and it is a high-volatility asset.
  • Inconsistent supply figures:
    The total shown in the contract, the effective supply published by the issuer, and circulating supply on data platforms do not match. Check which basis a market cap figure uses.
  • Early allocation and large holders:
    Tokens retained by the company in 2018 are no longer subject to any lock-up. On-chain records show that some large holder addresses, untouched since 2018, moved tokens after the price peak in late September 2026; changes in these positions may affect market supply and demand.

Conclusion

Quant is an interoperability and programmable money provider for banks and enterprises, built around Overledger. Over the past two years it has won institutional engagements, including UK Finance’s GBTD pilot and The Clearing House’s On-Chain Money Initiative, that can be checked against the partners’ own documents. QNT is an ERC-20 utility token with a fixed supply of 14,612,493, used for Overledger licence fees, Fusion Rollup gas and node staking. It carries no governance or profit rights, and platform fees can be paid in US dollars, so there is no mandatory link between company growth and token demand. An assessment of QNT should weigh centralised control, company holdings of about 30%, heavy derivatives activity, and whether The Clearing House network launches on schedule in the first half of 2027 and generates fees paid in QNT.

References and Official Links

Disclaimer: This article is for informational purposes only and does not constitute investment advice or an offer to buy or sell. Virtual asset prices are highly volatile and may result in the loss of all principal; past performance does not indicate future results. Investors should assess their own financial situation and risk tolerance and verify information independently before investing.

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