Lightspark Sync：該公司宣布新產品和功能，允許用戶使用比特幣和法定貨幣進行全球支付

該公司宣布推出了 Spark 的 alpha 版本，這是一種比特幣第 2 層，可與閃電網路互通，價格更便宜

Lightspark, a Web3 payments company, announced new products and features at its first partner summit on Thursday.

Web3 支付公司 Lightspark 在周四的首屆合作夥伴高峰會上宣布了新產品和功能。

The new products include Spark, a Bitcoin Layer 2 that’s interoperable with Lightning, and UMA Extend, a service that integrates the Lightning Network with traditional banking systems.

新產品包括 Spark（可與閃電網路互通的比特幣第 2 層）和 UMA Extend（一項將閃電網路與傳統銀行系統整合的服務）。

The company also announced new capabilities for UMA, its open-source and regulatory compliant payment solution. With UMA Auth, users can tip, pay subscription fees and make payments to merchants within apps.

該公司還宣布了其開源且符合監管要求的支付解決方案 UMA 的新功能。借助 UMA Auth，用戶可以在應用程式內給予小費、支付訂閱費以及向商家付款。

Lightspark CEO David Marcus speaking at Lightspark Sync.

Lightspark 執行長 David Marcus 在 Lightspark Sync 上發表演說。

Announced at the event were an alpha version of Spark, a Bitcoin Layer 2 that’s interoperable with Lightning and that makes it cheaper to onboard users to a non-custodial Bitcoin layer, and new capabilities for UMA, the company’s open-source and regulatory compliant payment solution that makes sending money as simple as sending an email.

活動中宣布了Spark 的alpha 版本，這是一個可與閃電網路互通的比特幣第2 層，可以讓用戶更便宜地使用非託管比特幣層，以及UMA（該公司的開源且符合監管要求的付款）的新功能使匯款就像發送電子郵件一樣簡單的解決方案。

With UMA Extend, the Lightning Network can serve as a bridge between traditional banks globally, while with UMA Auth and UMA Request, UMA users can tip, pay subscription fees and make payments to merchants within apps.

透過UMA Extend，閃電網路可以充當全球傳統銀行之間的橋樑，而透過UMA Auth和UMA Request，UMA用戶可以在應用程式內向商家支付小費、支付訂閱費和付款。

Spark — Lightspark’s Bitcoin Layer 2

Spark — Lightspark 的比特幣第 2 層

Spark is a Layer 2 protocol for Bitcoin that leverages statechain technology. In short, users can hold fractions of bitcoin off-chain, and transfer these by sending private keys to other users (rather than signing transactions with the keys).

Spark 是利用狀態鏈技術的比特幣第 2 層協定。簡而言之，用戶可以在鏈外持有部分比特幣，並透過將私鑰發送給其他用戶（而不是用金鑰簽署交易）來轉移這些比特幣。

Lightspark created Spark to better support the onboarding of users to the Lightning Network, which normally requires an on-chain transaction for each payment channel as well as the locking up of some amount of bitcoin in these channels so users can send and receive transactions.

Lightspark 創建 Spark 是為了更好地支援用戶加入閃電網絡，這通常需要每個支付通道進行鏈上交易，並在這些通道中鎖定一定數量的比特幣，以便用戶可以發送和接收交易。

The layer 2 was primarily borne from the frustration that the Lightspark team encountered in trying to create a non-custodial Lightning wallet for users.

Layer 2 主要是由於 Lightspark 團隊在嘗試為使用者建立非託管閃電錢包時遇到的挫折而產生的。

“Self-custodial Lightning wallets, especially at scale, just aren’t viable,” Lightspark CTO Kevin Hurley told Bitcoin Magazine.

Lightspark 首席技術長 Kevin Hurley 告訴《比特幣雜誌》，“自我託管的閃電錢包，尤其是大規模的，是不可行的。”

“If you are opening channels for billions of users, fees are going to go through the roof, and you're going to fill up block space. It's just something that's not going to be reasonable and you lock up liquidity for every single user,” he added.

「如果你要為數十億用戶開放管道，費用將會飆升，並且你將會填滿區塊空間。這只是不合理的事情，你會鎖定每個用戶的流動性，」他補充道。

Hurley also shared that Lightspark didn’t want to wait for the enabling of Bitcoin opcodes (like CheckTemplateVerify or TapleafUpdateVerify) that would make it cheaper to open new Lightning channels. Lightspark wanted to offer users a non-custodial option immediately.

Hurley 也表示，Lightspark 不想等待比特幣操作碼（如 CheckTemplateVerify 或 TapleafUpdateVerify）的啟用，因為這將使打開新的閃電通道變得更便宜。 Lightspark 希望立即為使用者提供非託管選項。

So, they built Spark, a Bitcoin Layer 2 that offers users cheap, instant payments as well as a permissionless, unilateral exit to the Bitcoin base layer. It also enables offline receive, or the ability to receive bitcoin even when your device isn’t connected to the internet.

因此，他們建立了 Spark，這是一個比特幣第 2 層，為用戶提供廉價、即時的支付以及無需許可、單方面退出比特幣基礎層的功能。它還支援離線接收，或者即使您的裝置未連接到網路也能夠接收比特幣。

Besides statechains, Spark also utilizes atomic swap technology. Its design is similar to that of Mercury Layer in that it enables the off-chain transfer of ownership of Bitcoin UTXOs while benefiting from near instant and fee-free transactions, according to Hurley.

除了狀態鏈之外，Spark 還利用原子交換技術。 Hurley 表示，其設計與 Mercury Layer 類似，可實現比特幣 UTXO 所有權的鏈外轉移，同時受益於近乎即時且免費的交易。

“Mercury has a lot of core limitations that we go beyond,” explained Hurley.

「水星有很多我們超越的核心限制，」赫爾利解釋道。

“In Mercury, for example, you can transfer whole UTXOs only. You have absolute time bombs where you have to go back on chain at some absolute time. So, you can only do so many transactions. Also, we pull in different pieces like connector transactions from Ark, for example, but, other than that, we're not similar to Ark at all,” he explained.

「例如，在 Mercury 中，您只能轉移整個 UTXO。你有絕對定時炸彈，你必須在某個絕對時間回到鏈條上。因此，您只能進行這麼多交易。此外，我們還引入了不同的部分，例如來自 Ark 的連接器交易，但除此之外，我們與 Ark 根本不相似，」他解釋道。

“I think it's hard to compare it to something, because it pulls in a lot of different components, and I think the trade-offs that we chose to make are different than many others probably chose to make.”

“我認為很難將它與某些東西進行比較，因為它包含了許多不同的組件，而且我認為我們選擇做出的權衡與許多其他人可能選擇做出的權衡不同。”

Besides bitcoin, it’s also possible to issue and use stablecoins on Spark. Or you can issue stablecoins via Taproot assets, LRC-20 or RGB on the base layer and transfer them to Spark.

除了比特幣之外，還可以在 Spark 上發行和使用穩定幣。或者您可以透過底層的 Taproot 資產、LRC-20 或 RGB 發行穩定幣並將其轉移到 Spark。

A unique dimension of Spark, though, is that the assets on the layer 2 are all UMA enabled.

不過，Spark 的一個獨特之處在於第 2 層上的資產都啟用了 UMA。

“You can now have non-custodial users sending directly to the bank accounts of UMA Extend users,” said Hurley, mentioning one of the new functionalities of UMA addresses.

「現在，您可以讓非託管用戶直接向 UMA Extend 用戶的銀行帳戶發送數據，」Hurley 在提到 UMA 地址的一項新功能時說道。

Lightspark CTO Kevin Hurley speaking at Lightspark Sync.

Lightspark 技術長 Kevin Hurley 在 Lightspark Sync 上發表演說。

UMA Extend

UMA擴充

UMA Extend integrates the Lightning Network with traditional banking systems, allowing users to make international bank transfers in seconds. With this new technology, UMA Extend users can send any other UMA Extend user a near instant cross-border payment from one bank to another over Lightning as easily as sending an email.

UMA Extend將閃電網路與傳統銀行系統集成，使用戶可以在幾秒鐘內進行國際銀行轉帳。借助這項新技術，UMA Extend 用戶可以透過閃電網路向任何其他 UMA Extend 用戶發送近乎即時的跨境支付，從一家銀行到另一家銀行，就像發送電子郵件一樣簡單。

“It’s designed to facilitate money movement across any currency,” Nicolas Cabrera, VP of Product at Lightspark, told Bitcoin Magazine. “I can be in Brazil sending my local currency, the Brazilian real, to a user based in Europe that wants to receive euros or someone in the US who wants to receive USD.”

Lightspark 產品副總裁 Nicolas Cabrera 告訴《比特幣雜誌》：“它的設計目的是促進任何貨幣之間的資金流動。” “我可以在巴西將我的當地貨幣巴西雷亞爾發送給想要接收歐元的歐洲用戶或想要接收美元的美國用戶。”

The Brazilian reals leave the sender’s bank account, are converted into sats

巴西雷亞爾離開發送者的銀行帳戶，轉換為 sats