🚀 CKB Fiber Network Protocol Testnet Full Version is LIVE! 🌐 ⚡️ Next-gen common Lightning Network: Fast, low-cost, decentralized multi-token payments 🆕 New Features: • Multi-hop routing support 🌐 • Watchtower service 🛡️ 🏗️ Previously implemented in basic version: Open, update, and close channels between two nodes 🔄 Support for ANY RGB++ Coin channels 💎 Cross-chain interoperability with the #Bitcoin Lightning Network🔗 🛠️  Developer resources: • Website: ckbfiber.net • GitHub: github.com/nervosnetwork/… • Tutorial: github.com/gpBlockchain/c… • Video Guide: piped.video/-es_tPxfQTo Developers, join us in building the #CKB ecosystem! 🔥 #FiberNetwork #Bitcoin #LightningNetwork

JoyID 内置的 marketplace 是一个为社区构建的公共物品，它从一开始就是0手续费和开源的（github.com/nervina-labs/ckb-…）；任何人都可以基于它的 SDK 来开发自己的 DEX，并添加额外的功能。它设计的目的也不是为了流量或者盈利，而是为社区提供最低限度的交换平台。未来一旦有更优质的 DEX 上线，这个内置的 marketplace 很可能会逐渐关闭，让社区更有能力的团队去运营自己的产品。 目前内置 marketplace 的上架是完全无须许可的，但如果某个资产名称与之前发行的资产重名，那么无法上架（某个重名币通过社区讨论成为了首个例外）；另外有两个与项目方重名的无关代币，为了防止用户误导，JoyID 项目团队也做了前端屏蔽的处理，但用户依然可以选择通过其他平台进行交易，JoyID 并没有也不可能在协议层做任何的审查。 这次事件也说明社区共识的重要性，JoyID将和大家一起讨论类似 Uniswap token list 的方案，让产品逻辑更符合大家的预期。感谢大家的鞭策，JoyID会继续努力。💪💪💪

Meet Flashpurr - our new mascot whose dynamic feline presence symbolizes the agility and precision in Bitcoin transactions. Just as cats are known for their swift, calculated movements, UTXO Stack powers seamless transfers across the Bitcoin ecosystem. This rebranding more than just a new look - it reflects our mission to revolutionize Bitcoin ecosystem. While the Lightning Network faces crucial challenges in liquidity management and stablecoin integration, UTXO Stack leads the innovation. We're building leading infrastructure solutions that not only enhance liquidity but also seamlessly integrate stablecoins like $ USDI, making cryptocurrency transactions accessible for everyday use. We're pioneering AI-to-AI payment solutions, crafting the future of Bitcoin finance. Join us, the journey never ends - we're just getting started.

我们为什么要投资UTXO Stack ABCDE领投的UTXO Stack在技术上可以帮助项目开发者一键发行基于UTXO架构的BTC Layer2，并原生集成RGB++协议能力。在安全上结合通过质押 BTC、CKB 以及 BTC L1 资产以保障Layer2安全。 简单来说，UTXO Stack就是比特币生态的“OP Stack + EigenLayer” 一. BTC Layer2之争与RGB++ 要想讲清楚UTXO Stack，就不可能绕得开RGB++ 目前市面上的BTC Layer2已经超过20条，但绝大多数都是EVM解决方案，基本是在拿ETH的技术栈+桥来解决BTC的扩容问题。虽然在短期内可以快速搭建起生态，但长期来看，这种解决方案第一在安全性上与BTC主链都没有强绑定关系，且重度依赖与桥，第二是意识形态上拿ETH的Account模型和EVM虚拟机来扩容UTXO的BTC，多少显得有些不够“Bitcoin Native” 而安全性与BTC L1关联度高，又足够BTC Native的解决方案，闪电网络运行多年一直未能取得理想的效果，且有着不能支持智能合约的天然扩容短板。Taproot，RGB等客户端验证范式的方案也都存在着落地时间长，技术进展缓慢等诸多问题。这也是当前EVM扩容方案大行其道的主要原因 而在公链领域深耕多年的Nervos利用与BTC同是POW+UTXO的天然结构性优势+创新型的“同构映射”技术把RGB的客户端验证范式“无缝搬迁”到了CKB之上，命名为RGB++。 在牺牲了少许隐私的前提下换来了极大的功能与灵活性拓展，且安全性与BTC L1形成了强绑定。更为重要的是，RGB++就在几天前真正落地了！也就意味着这不再是一个停留在概念或是开发层面的扩容叙事，而是实实在在可以开始构建生态和解决方案的产品。 如果上述名词像是客户端验证，同构绑定还是过于抽象的话，那么可以用以下的近似类比来理解RGB++ - 用户在BTC L1发起一比交易来触发CKB上面属于该用户的RGB++资产交易，当这比交易在CKB上完成时，再写回BTC L1上一个Commitment 你也许会疑惑 - 这也没省掉Gas费不是？用户在BTC L1上照样还得发起交易，照样得付BTC上的Gas费，现在还得加上CKB这边的Gas费，感觉，更贵了？ 其实不然，好处有以下四个 1. RGB++作为资产发行协议，让BTC L1拥有了发行RGB新资产的能力（想想Merlin的BRC420） 2. 在CKB上面的RGB++资产交易是完全图灵完备，具备可编程性的。 3. 你可以等多笔RGB++转账完成后，再汇总发送一个Commitment到比特币L1上，这被称为“交易折叠”，是不是很有Rollup即视感，这不就省掉很多Gas费用了 4. 不光是RGB++资产可以被映射到CKB，Atomical，Rune等具备UTXO特性的资产一样可以映射到CKB上来做图灵完备的交易 因为Bitcoin L1上面的UTXO才能操作或更新RGB++UTXO，所以在RGB++里，CKB成了BTC的“执行+DA”层，BTC L1成了真正意义上的“结算层”，这是目前任何EVM和非EVM BTC 扩容方案都无法做到的 如果你觉得这套方案还是速度不够快，费用不够低怎么办？毕竟BTC L1上的交易依旧不可避免，CKB作为一条POW L1的极限TPS也只有几百。有没有更加灵活快速的扩容方案，就像……ETH生态那边的Appchain？ 于是乎我们有了UTXO Stack，基于BTC与RGB++的“OP Stack” 二. UTXO Stack - BTC的OP Stack+EigenLayer 如果你熟悉OP Stack，RAAS（Rollup as a Service）协议栈的话，UTXO你理解起来应该非常容易 有了UTXO Stack，你可以一键发行BTC的同构UTXO Appchain，且这些Appchain有如下特性 1. UTXO模型，超高TPS （UTXO天生自带并行处理），超低Gas费用 2. POS机制，安全性由BTC上质押的BTC/CKB来提供（类似EigenLayer） 3. 资产协议采用RGB++，因为同构映射技术的存在，资产可以在Appchain/CKB/BTC之间任意跳转，无需跨链桥 4. 可以复用CKB智能合约栈 5. 可以复用BTC钱包（用户对于CKB这条链无感知） 终于，我们有了比特币原生的，基于UTXO的一件发链基础设施，这项基础设施还融合了EigenLayer提出的Restaking概念，在给BTC和CKB更好赋能的同时，为Appchain的冷启动和安全性保驾护航 可以预见的是，在不久的未来，BTC EVM layer2与BTC UTXO layer2会在技术，生态，乃至意识形态多个层面展开一轮正面对抗。 RGB++从2月正式提出到4月落地，只用了短短不到两个月的时间，展现出团队极其强大的工程能力。UTXO Stack在RGB++落地的同时推出，更是给予了BTC生态资产发行与玩法上更加多样+Bitcoin Native的可能性。我们相信并携手UTXO Stack，一起将比特币生态推向一个更加美好，更加繁荣的未来

🚀 Unveiling the future! Discover how @SmartLayer xNFT on @0xPolygon revolutionizes digital ownership in the next-gen crypto wallet, @joy_protocol . #ERC5169 #TokenScript #xNFT #JoyID #smartcat #smartcats Meow 🐈‍⬛ opensea.io/collection/smart-…

Announcing upcoming Windows updates to help you go passwordless: 🔒 Third-party passkey support 🔒 Enhanced native UX 🔒 Microsoft-synced passkey provider Learn more: msft.it/6017m401t #Authenticate2024

#Bitcoin/acc Digital gold was just the prologue. The hardest asset ever created by human civilization is stretching its gargantuan arms into smart contracts. An ELI5 thread to not sideline this ecosystem 🧵:

Gate.io #Startup Free Offering: $SEAL @btckbseal 🗓️Subscription: 4:00am, Aug 18- Aug 20 (UTC) ⏰Trading Starts: 8:00am, Aug 20 (UTC) Claim NOW: gate.io/startup/1778 Details: gate.io/article/38642 #GateioStartup #Gateio #Airdrop #launchpad

📢Hey there! Did you catch the buzz? 👀In just 24 hours, brc-20 is about to get a supercharge with a protocol-level upgrade, introducing 5-byte tickers at block height 837090. What’s the big deal with 5-byte tickers, you ask? Well, get ready to snag some ultra-cool names like brc20, super, crazy, degen and world! 1/3

🥳Excited to announce our collaboration with @OneKeyHQ ! 🤝 🔗We're integrating #NervosCKB with OneKey wallet, bringing you a seamless transfer experience on #CKB . 🎁Stay tuned for the launch of our co-branded hardware wallet this April! 🚀 #Blockchain #Crypto

UTXO-based isomorphic binding scheme/RGB++ explanation The RGB++ protocol has preliminarily gone live, with the first asset $SEAL reaching a market cap of $50-60 million, but currently it is only trading on BTC and does not seem too different from other BTC assets. However, if the new asset protocol has no qualitative difference from BRC20, such as only making transactions slightly smaller, then it is not very significant. So the question is, what is the real intrinsic innovation of RGB++? How innovative is it? Do these innovations have application scenarios? As someone who participated in the design and specification of details for the RGB++ protocol, let me explain my understanding of the technical innovations of RGB++ from my perspective. Although asset creation is the most important catalyst for a protocol, RGB++'s greater unlimited possibilities lie in the L1/L2 duality that has not yet been shown to most users, or the switching between the material form and soul of a digital asset across BTC/CKB/UTXO-Stack. Compared to other protocols that are still struggling with programmability or focusing on solving asset splitting, the RGB++ protocol has prepared for the technologies needed in the next one or two years. But saying it this way is still too abstract, so it's better to break down this possibility from the perspectives we currently have. 1. From the viewpoint of inscriptions/colored coins, RGB++ has implemented the ultimate indexer. First, the indexer itself is a completely decentralized blockchain, greatly reducing the risk of centralization and the possibility of incompatibility between multiple indexer versions. Second, adding any new functionality does not require a hard fork of the indexer because RGB++ is Turing complete. The currently available indexer is based on the Cell model of CKB, and there will be many more BTC-Staking chains issued based on UTXO-Stacks in the future. 2. In terms of extending programmability to BTC, RGB++ gives every UTXO on BTC the ability to write fully Turing-complete scripts. A RISC-V-based virtual machine has pushed the expressive power of UTXOs to unprecedented heights. As before, the ownership of a UTXO is controlled by the scriptPubkey, but what the UTXO represents becomes programmable, and the "meaning" is expressed by the isomorphic Cell, using a single-use-seals and isomorphic binding scheme. A UTXO can represent a coin, an NFT, or any imaginable form of asset. If we say that the soul of a UTXO used to be locked in a cage, with RGB++, the soul of a UTXO can have a free form. 3. From the perspective of BTC Layer 2, RGB++ has realized completely decentralized L1/L2 asset interoperability. Not only can RGB++ assets on BTC migrate to L2, but any L2 assets can also migrate to L1. If a MEME initiated on L2 has gained strong consensus, it can completely make a carp leap over the dragon gate to become a true L1 asset, and this process does not involve any multi-sig or other centralized components. In this way, we can achieve the process where L1 creates assets to build consensus, which are then unleashed by L2 applications to serve the assets created on L1, thereby providing an entire process for BTC asset innovation and subsequent liquidity and asset empowerment. 4. From the perspective of Digital Objects (DOBs) We are already familiar with the ERC20/ERC721 forms of assets, where assets are held by some contract's accounting and manipulation of digital information. Previously, only BTC and its derivative assets were held as a completely different asset paradigm - a UTXO is a digital object whose ownership is directly controlled by the private key rather than held by a contract. When a user wants to create new assets, it's not just writing a few bytes of data on the chain, but requires real digital material - satoshis as the material form of the digital object. Digital objects can be combined and split; they are born from one transaction and die from another transaction, an endless cycle of life and death. Every BTC block is accompanied by the birth and death of many digital objects, and RGB++ greatly expands the expressive content of digital objects. In this world, with the help of isomorphic binding, digital asset objects can freely switch between material form and soul across L1/L2. 5. From the perspective of the Lightning Network, RGB++ will give the Lightning Network new possibilities. On the UTXO-isomorphic Layer 2, a more powerful Lightning Network can be built, and all these sub-Lightning networks can be connected to the Lightning Network of BTC, forming a large interconnected network of channels. This will bring some new vitality to the channel network technology solution that has been slow to progress for a long time. This route has undergone preliminary academic evaluation and efforts are underway to develop a PoC to verify the actual effect. 6. Going further, RGB++ can extract a universal technical solution based on the UTXO-based isomorphic binding scheme - UIB. First, UIB can interface with more UTXO chains such as DOGE, LTC, BCH. Second, by introducing UIB, existing BTC Layer 1 asset protocols can have programmability, thereby empowering current existing assets. For a long time, what we've been exposed to are the account models led by ETH, experiencing digital assets on accounts. Creating an on-chain digital object with a digital material form(Satoshis) and holding one's assets in a non-custodial way is an unfamiliar experience for most people, and most people may have never even used the Lightning Network. Many people think that BTC should just be digital gold and should not have an ecosystem, but fortunately, BTC has no deity to instruct the correct path. If we only treat BTC as digital gold, as BTC ETFs and Coinbase-custodied BTC become more powerful, it will become the blade that kills BTC. When most people just lock up BTC without really using it, the damage will be more severe than a 51% attack. BTC's strength lies in its resilience – growing wildly for more than a decade, it has powerful inner vitality, resisting any singular interpretation of BTC. Hopefully, with RGB++ Enhanced Bitcoin, people can get some new blockchain experiences outside of the EVM ecosystem, going back to look at the original Peer-to-Peer from the myriad Peer-to-Contract abilities.

1-8 IPN will construct a native payment network on BTC by adopting the RGB++ protocol. The USDI will be the first programmable stablecoin issued on the BTC mainnet, facilitating the large-scale application of BTCFi and the Lightning Network.

It is a truth universally acknowledged, that a single token, desirous of utmost security, must be in want of issuance upon Bitcoin. RGB++ might be the answer. We've distilled its key features into an easy-to-understand paper. Check it out! ➡️ ia.cr/2025/569

UTXO：串起铭文、面向意图的 BTC L2 的发展脉络 最近，@NervosNetwork 宣布推动 CKB 成为首个「POW+UTXO」比特币L2，$CKB 币价应声大涨。 在此前，圈内在谈论 BTC L2 的时候，其实深受以太坊的 L2 Rollup 概念影响。此前各种快速搭建的 EVM 版本的 L2，虽然技术成熟、生态发展门槛低，但是其原生安全性一直被诟病。同时，这类型的 L2 使用起来需要用户在 BTC 钱包与 EVM 钱包之间来回切换，用户体验很不优雅。 总而言之，在这些问题被解决之前，BTC 社区内「挑剔」的 OG 和鲸鱼可能没那么容易被「FOMO」。种种问题之下，UTXO 同构的 L2 方案能否成为一条新出路，已成为近期热议的话题。 本文面向入门小白，以「万恶之源」 UTXO 为起点串起铭文、 CKB 的「无跨链桥」 BTC L2 的发展科普。 什么是 UTXO 和 eUTXO？ UTXO (Unspent Transaction Output)，直译就是「尚未花费的交易输出」。比如，你收到了一笔 10 个 BTC 的转账，并且没有花费给其他人，这一笔 10 BTC 就是一个 UTXO。 让我们通过对比和例子来理解。 目前区块链主流的两个交易记录模型，也就是 UTXO 模型和 账户模型。以太坊采用的账户模型非常好理解，这个模型就和银行账户、支付宝微信账户一样。这种模型下，账户里的资金总量直观显示为一个整体余额，系统只需要跟踪用户账户的余额变化。 打个比方：你的账户里有 1000 元的余额。你购买 600 元的 OneKey Classic 时，系统会在你的账户里计算扣除 400 元，同时在 OneKey 的账户里面增加 400 元。 相比以太坊使用的账户模型，比特币的 UTXO 抽象会更像真正的「钱包」和「钞票」，更像真正的现金交易。 打个比方：想象你有一个钱包袋子，里面有很多不同面额的钞票。每一张钞票都可以看作是一个UTXO，即一笔你可以使用的钱。在比特币这样的系统里，当你收到别人转账的比特币，这笔钱就像是钱包里的一张新钞票，你还没用它来支付别的东西，所以它是“未花费的”。 每次你进行一笔交易，比如用一张 1000 元的钞票买了一个 600 元的 OneKey Classic，你会拿回 400 元的找零。 在比特币系统中，这种操作相当于你用一个UTXO（1000 元）创建了两个新的UTXO：一个是支付给 我们 OneKey（600 元），另一个是找回给自己的（400 元）。你「花费」掉了原来的UTXO（1000元），同时「生成」新的UTXO（600 元和 400 元）。 有了上文，eUTXO（Extended Unspent Transaction Output，即扩展版的尚未花费的交易输出）的概念，就很好理解了。 在Cardano这类使用 eUTXO 模型的系统中，它不仅记录了钱的数量，还能包含更复杂的数据和逻辑（例如，这笔钱只能用来购买特定的商品或服务）。这样一来，每笔交易不仅是转移资金，还可以执行一些条件甚至是智能合约的内容。这使得交易变得更灵活，但同时也更复杂。 BRC-20 等铭文与 UTXO 有什么关系？ 如果你对 BRC-20 协议有所了解，你很快就会发现——「卧槽，他们在做的事就是在 UTXO 模型上面跑账户模型」。毕竟，协议名字的来源是使用账户模型的以太坊的代币标准 ERC-20。 在 BRC-20 中，代币的操作，包括部署（deploy）、铸造（mint）和转移（transfer），都是通过在比特币的 UTXO 交易中嵌入 JSON 格式的数据来实现的。这相当于，我们在之前提到的「钞票」上写字记录。 这种方式做到比特币链上可以自由发行代币。可是，比特币无法管理账户模型，且 BRC-20 的内容是放在 Segwit 的 Taproot 脚本中，比特币无法识别里面的数字并计算。这就像银行系统只认钞票的面额，不会去管你在上面写了什么字。 好在，不像中心化的银行，所有的比特币交易都是公开的，我们能查到所有的「钞票」上写了什么字。只要我们按照一定的规则（序数理论）去做账本，在链下计算加加减减就行。所以 BRC-20 目前就采取在链下构建一个索引服务器，来实现 BRC20 的代币的各种账本计算。 但这种方式，显然会存在中心化的风险——这个维护账本的服务并没有 POW 或者 POS 的公平博弈机制来保证不做恶。所以这也很好解释，为什么 BRC-20 在一些比特币核心开发者极客的眼里——这就是画蛇添足和技术倒退。 所以后面又发展了各种新的铭文协议，来解决 BRC-20 的缺点。比如 ARC-20 和 Runes 采用了一种类似的方法来让比特币计算余额，即直接让代币的数量等于 UTXO 中比特币的数量（单位：聪）—— 1 token = 1 sat，而不是另外计数。这相当于，你在最小面额的钞票上面打了「特殊记号」，来代表另外一种货币。其实也就是币圈上古历史出现过的“染色币”。 这样做的好处是，在追踪交易、计算余额等方面，不需要任何的链下系统。只是需要一个索引服务器来识别这个「特殊记号」，降低了索引服务器的成本。 但是这也引入了一个新问题，比特币网络为了减少垃圾交易，有一个最小交易输出限制（546 聪），导致 ARC-20 这样的铭文代币无法拆分出更细颗粒度的交易，导致流动性类似 NFT，不是真正的同质化代币。但是要引入拆分交易的计算，兜兜转转，又不得不进行中心化链下索引交易。在这个问题上，ARC-20 卡了很久，几个月都没有拆分的方案。目前看起来项目方寄希望于启发于 BitVM的 AVM 来实现质押拆分计算，开发难度不小。 CKB 如何实现无跨链桥的 L2？ 从技术来讲，不少 Meme 型铭文资产发行方案本身给比特币技术进步的推动有限。铭文创造了许多新的资产，但是应用也止步在了发行资产。 但是其财富效应和 FOMO 让人们看到了 BTC 生态的想象力。在一次次链上玩家的实战需求中，比特币网络 和 UTXO 的种种限制，更刺激了人们对于比特币扩容和更复杂生态应用的需求。 从扩容的角度，闪电网络已经是一个足够棒的 L2，闪电通道通过博弈（基于惩罚的可撤销承诺交易）实现去信任且运行多年。但闪电网络的状态通道架构也基本局限在了支付，无法实现更多复杂的意图。 前面提到，实现一个相对安全优雅的 L2，走与 BTC 同构的 UTXO 模型，并采用 eUTXO 概念进行扩展，或许是一个出路。公链 Ergo 和 Cardano 均已在eUTXO模型上有所建树，都实现了智能合约功能。不过率先想到去实现 L2 解决方案的是 CKB。 CKB 的答案是提出 RGB 的扩展协议：RGB++，其实与其说是扩展，不如说的「大魔改」。CKB 的拓展继承了 RGB 协议的核心，但是直接采用不同的虚拟机和验证方案。 RGB 协议作为一个开源智能合约系统协议，其设计目的是在 UTXO 区块链（如比特币、Liquid）上运行可扩展、稳健和私密的智能合约。目前 v0.11 尚未发布，其虚拟机 AluVM 距离完全落地还有一定的距离（有一说是这一轮牛市结束了都不一定能做出来）。 其技术重点「同构绑定」，是将比特币 UTXO 映射到 Nervos CKB 的 Cell —— 一种魔改版 UTXO，可以结合实现智能合约能力。对于验证方案，所有的 RGB++ 交易都会在 BTC 和 CKB 链上同步各出现一笔交易。原本的链下客户端验证被改成了 CKB 的链上公开验证，这对于用户来说友好了很多，不需要使用独立的客户端，不需要自行保存原始交易数据。 粗略地理解，即在比特币一层发型的RGB ++资产，可以在ckb二层使用智能合约实现各种复杂意图。CKB 没有使用任何跨链桥，而是使用了原生的客户端验证方案。 某种意义上，这是一种相对前沿的想法——去做意图（Intent）跨链扩容，而非传统的资产跨链。 L2 们总是在想办法使用各种方式将 BTC 在 L2 锁定，但实现扩容和复杂应用，也许只需要在 L2 做面向意图的应用就行呢？ 虽然 RGB++ 目前还只是构想，实践尚未深入，但是这个方案相信会给 BTC L2 的正统性探索提供了新的道路。未来可期。 最后： 🙌希望对你有帮助，点赞关注不迷路。 👍我们是全球首个完整支持闪电网络与Nostr的硬件钱包，并有完整的 App 软件钱包支持 —— OneKey 期待与大家共建 BTC 生态。

🚀 The wait is over! #JoyID Official Launch 🎉🧵 /1 We're thrilled to announce that JoyID is officially launching! Say hello to the future of crypto wallets: secure, simple, and seamless. 🔒 Forget complex keys. ✨ Experience simplicity. Unlock now! 👉🔗app.joy.id

🎉We’re excited to announce that Element has officially launched the Bitcoin RGB++ protocol marketplace! 🎉 With both Layer 1(BTC) and Layer 2(CKB) RGB++ markets now live, users can enjoy seamless trading of DOBs (Digital Objects) on Element. @CKBEcoFund @CKB_CN ⚠️ Please note: Due to wallet compatibility, we strongly recommend only using JoyID Wallet @joy_protocol for RGB++ assets on the Bitcoin network to avoid potential asset loss. 🥳Start exploring now: element.market/btc?p=rgbpp

Discover RGB++ Explorer: Your Bitcoin Ecosystem Compass! 🧭 With this powerful tool, you can: 🔍 Track RGB++ transactions; 🔄 Check RGB++ assets info. sorted by 24h txs 👥 Explore RGB++ asset holders; 🌐 Search for on-chian infos, such as BTC/CKB addresses, tx hashes, block hashes and asset IDs. Explore now: explorer.rgbpp.io #RGBPP

想象一个无需许可就能开户，没有国界限制，支持各种稳定币，一毛钱也能转，手续费费率万三，点对点可编程的线上支付网络，能用来干啥？ @crypcipher 提出了一个新答案，用这套 Web 3 的支付网络去解决支付，用过去的 Web 2 技术去解决其他问题，互不打扰，有机结合。 bodhi.wtf/space/17/15416

📈 #比特币 价格破九万，二层赛道蓄势待发！ 11月21日晚 8 点，和@chestersigned，@dapangdun, @stablepp 带你深度解析比特币 L2 生态。从 #闪电网络 到 RGB++，发现潜在的投资机遇。 ⏰ nitter.app/i/spaces/1PlKQbXeqjaGE 参与 Space 互动，10 位幸运用户将共享 5000 $CKB。🎁 #CKB #BTC #BTCL2 #PayFi #LightningNetwork #RGBpp

⚡️技术社区共话：Fiber Network 公开问答⚡️ 📢 让我们回归纯粹的技术讨论！欢迎开发者和研究员来参与公开对话，我们将回应大家关于 Fiber Network 和闪电网络的任何疑问！ 🎙️ 我们邀请 👉 RGB++协议作者、CKB 联合创始人 @crypcipher 👉 Fiber Network 核心开发者 @quakewang 🙋‍♂️接受任何人的公开提问，欢迎大家一起参与 📅 时间：9 月 6 日 21:00 (UTC+8) 📍 nitter.app/i/spaces/1PlJQbo… 🎙 主持人：@CKBEcoFund Research Lead @c_hongzhou 💪 是热爱和建设让这个行业伟大，欢迎热爱技术的朋友们一起来公开讨论技术细节 #Blockchain #Space #CKBLN #LN #FiberNetwork

🎙️Join us soon for an explorative conversation covering RGB and RGB++ with @AdamBorco and @crypcipher! 💥 nitter.app/i/spaces/1lDxLPNjPXLxm

🎉 Exciting news! JoyID Passkey has launched the first Coins Dex! 🚀 Now, you can trade any RGB++ assets on BTC layer 2 (CKB) on JoyID Coins Dex. 👉 app.joy.id/market Experience smooth trading with 0 Gas and 0 fees! Join us now! 🌟 #BTC #JoyID #RGBPP #CKB #Seal

Although @joy_protocol wallet has banned the trading of $RGB++ on the front-end (not banned on the contract level), please rest assured that Omiga has done the front-end work and will soon listing your $RGB++ assets. Welcome everyone to trade on Omiga: omiga.io

$scihub token won't solve Sci-Hub's legal challenges! Decentralization will. P2P storage + Lightning Network. Dive into the details in our latest medium piece:medium.com/@utxostack/donati… #p2p #payfi #Lightningnetwork #decentralization #btc #bitcoin

📢Exciting News! The #BTC Ecosystem's First Launchpad Platform #IBO is about to Launch, the First Project is #Stable++.@stablepp The #Seal community is launching the BTC ecosystem's first Launchpad platform #IBO (Initial Bitcoin Offering), during this week's BTC2024 conference. We will help finance top-tier projects in the Bitcoin ecosystem. Initially, it will support #RGB++ Layer assets, allowing users to stake $Seal to earn project tokens. You can create liquidity pools on #UTXOSwap and enjoy various DeFi functionalities. In the future, the IBO platform will also support a wide range of UTXO ecosystems, including #BCH and #Dogechain, driving a new wave of Bitcoin Finance (#BTCFi) with smart contracts. The IBO platform adopts the #Seal2Earn model. The first $Seal to Earn project, Stable++, is also launching on the IBO platform. With a total supply of 21M tokens, 20% will be #airdropped to $Seal stakers. Stable++ is an over-collateralized #stablecoin protocol based on #UTXO. It uses the Leap function of the RGB++ Layer to ensure the free circulation of stablecoins within the Bitcoin ecosystem and maintains stability through over-collateralized vaults and efficient liquidation modules. They have received strategic investment from the #CKB ecosystem fund @CKBEcoFund

🎉 CKB Odyssey: The Identity Frontier Chapter Launches! 🎉 We’ve partnered with @DIDbased to kick off the first chapter of our CKB Odyssey adventure. ⏰ Duration: Dec 13 - 20, 2024, 6:00 PM (GMT+8) 1️⃣ Complete the tasks available on @GalxeQuest: app.galxe.com/quest/nNN5UQTf… 2️⃣ Earn Rewards: ✨ "The Identity Frontier" Badge ✨ 800 CKCAT gems ✨ 400 points in the UTXO Global Point System 🎟️ Special Draw: 🌟 1,000 $CKB for random 5 participants 🌟 20 FREE 1-year d.id accounts for 20 random participants 🚀 Complete the activities to claim your rewards! #CKBOdyssey #UTXOGlobal #DID #CKB #UTXO #Nervos @CKBEcoFund #NervosNetwork #Partnership

Introducing @unichain — a new L2 designed for DeFi ✨ Fast blocks (250ms), cross-chain interoperability, and a decentralized validator network Built to be the home for liquidity across chains

✨EIP-3074 正式被纳入下一次以太坊硬分叉✨ EIP-3074 由以太坊研究员 @_SamWilsn_ 、Go Ethereum 开发者 @lightclients 等人提出，其核心在于让任何一个外部拥有账户（EOA）都能像智能合约钱包一样运作，无需部署额外的合约，无需手动迁移。 如 Paradigm CTO @gakonst 所说「钱包用户体验将提升 10 倍」。那么 EIP-3074 是怎么做到这一点的？与 ERC-4337 的区别是什么？ EIP-3074 是对于 EVM 的升级 外部拥有账户（EOA）由用户直接控制和管理等以太坊上的一种账户类型，就是我们常用的助记词钱包创建的账户，比如 MetaMask。EIP-3074 引入了两个新的以太坊虚拟机指令：AUTH 和 AUTHCALL，使 EOA 连接起一个智能合约，并将交易的控制权交给智能合约。 1）AUTH 指令：允许一个智能合约代表一个 EOA 执行操作，从而实现了授权控制的委托。 2）AUTHCALL 指令：类似于现有的 CALL 指令，不同之处在于，AUTHCALL 会使用授权的 EOA 作为发送方，而不是合约本身。 整体流程是：用户签署授权消息，Invoker 合约接收并验证，Invoker 合约使用 AUTH 和 AUTHCALL 指令以 EOA 的身份发送交易，代表用户执行交易，而无需直接使用用户的私钥，然后返回结果给用户。 与 ERC-4337 的区别 ERC-4337 是协议层面的，不需要更改共识层，主要目标是实现账户抽象，让智能合约账户具有 EOA 主动发起交易的特性。 而 EIP-3074 需要通过以太坊硬分叉来实施，主要目标是赋予 EOA 类似智能合约的功能，将 EOA 的控制委托给智能合约，使得智能合约可以代表用户进行交易，并支持批量交易、赞助交易（即由第三方支付燃气费用以执行交易）等功能。虽然它使得 EOA 具备了智能合约钱包的功能，但账户仍然是 EOA。如果密钥被盗，意味着完全丢失。（除非设置一个特殊的合约专门用于账户恢复）。 为什么重要？ 在多链的时代，为每条链都支持 ERC-4337 需要大量的开发工作。而像 EIP-7377 提出的迁移交易，是需要用户手动发送一笔迁移交易。相比之下，EIP-3074 让 EOA 具备智能合约的功能，可以在直接在所有链上使用，并且不需要用户手动去迁移。 相较于其他提案，EIP-3074 的优势在于简洁高效。之前以太坊社区会担心 EIP-3074 的技术安全问题，经过改进和测试之后，社区广泛支持将 EIP-3074 加入到下一次以太坊升级中，这将对以太坊生态系统中的多个领域产生影响。 比如，在 DeFi 领域，EIP-3074 的批量交易功能将大大提升流动性提供者和交易者的效率，降低参与成本。此外，通过授权用户账户执行交易，DeFi 应用可以作为赞助者的角色，为用户支付 Gas 费用，从而降低用户使用 DeFi 产品的门槛，促进 DeFi 的大规模应用。 在全链游戏领域，通过 EIP-3074，用户可以通过授权方式将账户操作的权限授予第三方（Invoker），从而避免了每次交易都需要用户自己进行链上确认和支付 Gas 费用的问题。游戏开发者或其他第三方可以代替用户执行交易，用户只需要一次性授权即可，简化了交易流程，提升了游戏的流畅性。

An L2 is just an off-chain p2p network serving L1 assets with either cryptographic or cryptoeconomic guarantees. UTXO L2 constructions have been tried before - think Plasma Cash. But when L1 is EVM there are two problems: 1) the mismatch of L1/L2 asset fungibility, and 2) the need to exit when assets are L1 on-chain verified. However when L1 is also UTXO based and assets are client side verified (most Bitcoin non-BTC assets), both problems go away, and you’d be truly left with the real power of UTXO scaling - per user (and per app, in case of general UTXO systems) sharding. The closest EVM ecosystem analogy would be something like a “L2 construction” that automatically enables millions of per-user rollups and per-app rollups, for free. Then with a general VM you could achieve multi-asset programmable settlement, making such network also an application platform. So now you have an off-chain network (CKB), serving L1 assets (Bitcoin CSV assets), as an app platform, with cryptographic guarantees (L1/L2 UTXO binding + L1 commitments), with massively per-user AND per-app scaling flexibility. I think it’s fair to call it a unique and “not like other chains” BTC L2 solution.

JoyID 是一种神奇的 Hack，用 Passkey 标准绕过了苹果的「监管」，这才真正实现了平台级的 permissionless。 传统的 Crypto 钱包都需要开源、上架 App Store（或 Play Store）让用户获得，所以苹果🍎就是这个不 permissionless 的最重要因素，因为它真的就下架过 Trust、MetaMask🦊 等钱包。 而 JoyID 的方案却巧妙的满足了三个条件： 1️⃣PWA 应用不需要上架 App Store，其本质是网页，苹果是不可能管得到的。 2️⃣Passkey 是一套正在被微软、谷歌、苹果等所有厂商都在推广的新一代登录方案的标准，并且得到了全行业的共识，那基于 Passkey 的方案就迟早会进驻到所有的入口和平台中，也无法被苹果控制。 3️⃣可扩展性：在基于 Passkey 的钱包之上，还能继续扩展其安全方案，而不仅使用这唯一的安全要素。希望之后能提供更复杂、模块化和自定义化的密钥管理策略。 从 Friend.tech 到 JoyID，终于看到了 PWA 应用崛起的机会。其实 ChainFeeds.xyz 从上线开始就支持了 PWA，甚至支持了 PWA 的推送（iOS 17+）。 使用 JoyID 可以通过这里体验: app.joy.id/?invitationCode=n…

For all English-speakers interested in CKB, CKB is a PoW + Extended UTXO (Cell) blockchain designed in line with Satoshi Nakamoto. It enables isomorphic binding by binding BTC's UTXO to a CKB Cell, and runs BTC SPV validation scripts on the CKB chain to secure isomorphic bindings. This innovation extends BTC's functionalities and asset issuance under the security premises of BTC, making CKB an isomorphic blockchain to BTC and a perfect BTC Layer2 solution. CKB is designed with the following features: 1. To guarantee its decentralization, security, and sustainability, CKB adopts an enhanced version of the UTXO model known as the Cell model. This model natively supports covenants, transaction introspection, and a Turing-complete scripting vm medium.com/nervosnetwork/htt…. 2. The consensus algorithm is an advanced form of Nakamoto Consensus, dubbed NC-Max, enhancing security and performance. ndss-symposium.org/ndss-pape… 3. In terms of the economic model, a combination of the halving mechanism and secondary issuance is implemented to maintain economic sustainability. Additionally, a state renting mechanism has been introduced. 4. For scalability, CKB employs a layered architecture, investigating solutions like state channels network and sidechains. 5. The CKB-VM, based on the RISC-V instruction set, is chosen for its stability, allowing developers to write UTXO scripts in high-level languages such as Rust and C. 6. CKB features native account abstraction for flexible cryptographic operations without additional precompiled instructions. 7. It positions itself as a cross-chain hub, utilizing its abstract capabilities for seamless interoperability. blog.cryptape.com/blockchain… 8. CKB has implemented quantum-resistant signature lock scripts, showcasing the capabilities of CKB's programming model and the flexibility of the UTXO model. blog.cryptape.com/quantum-co… 9. It achieves fully decentralization with a super-light node design based on FlyClient ieeexplore.ieee.org/document…. Isomorphic binding, detailed by @frank_lay2 at mirror.xyz/zhixian.eth/2xAcB…, is a trustless mechanism enabling synchronized state and asset management between Bitcoin and Nervos CKB blockchains. This process maps Bitcoin UTXOs to CKB Cells, ensuring seamless operations across both chains without centralized control. How Isomorphic Binding Works: 1. Mapping of UTXOs to Cells: In RGB++, each Bitcoin UTXO is mapped to a corresponding Cell on the Nervos CKB blockchain. This mapping is established through a cryptographic commitment that includes the UTXO's details and the intended operation (e.g., state change or asset transfer). 2. Transaction Verification: When a UTXO is spent on the Bitcoin network, a commitment to this transaction is included in a Bitcoin transaction, usually within an OP_RETURN output. This commitment links the Bitcoin transaction to a specific state change or operation on the CKB blockchain. 3. Cross-Chain Verification: Nervos CKB verifies that the Bitcoin UTXO has been spent through a light client mechanism. This light client imports and verifies Bitcoin block headers, enabling it to confirm the inclusion of the Bitcoin transaction that spends the UTXO and carries the commitment. 4. State Update on CKB: Upon successful verification of the Bitcoin transaction and the spent UTXO, the corresponding Cell on CKB is updated to reflect the intended state change or asset transfer, completing the isomorphic binding process. Why It Is Trustless 1. Decentralized Verification: The process relies on cryptographic proofs and the decentralized verification of Bitcoin block headers by the Bitcoin light client protocol running on CKB. This protocol checks the PoW (proof-of-work verification) of each imported block header to ensure it meets the required difficulty level of the Bitcoin network, effectively validating the authenticity and chain of the blocks. This eliminates the need for trust in central authorities or intermediaries. 2. Security of Underlying Blockchains: The integrity and security of the operation are ensured by the consensus mechanisms of both the Bitcoin and CKB blockchains. Bitcoin's proof-of-work consensus guarantees the finality and immutability of UTXO spending, while CKB's (also a ASIC stage PoW) consensus mechanism secures the execution and verification of operations on its network. 3. Cryptographic Commitments: The use of cryptographic commitments to link UTXO spending with state changes on CKB ensures that operations are transparent, verifiable, and tamper-proof. This mechanism ensures that only valid and verified state changes are executed on CKB in response to actions taken on the Bitcoin blockchain. 4. No Central Points of Failure: The entire process is designed to operate without reliance on centralized services or points of failure. It uses decentralized network protocols, cryptographic methods, and the inherent security properties of the blockchains involved. Isomorphic binding is the cornerstone of RGB++'s ability to perform synchronized and trustless operations across both blockchains, allowing for the creation and management of digital assets and smart contracts with unprecedented flexibility and security: 1. Cross-Blockchain Asset Management: Assets issued on Bitcoin can now be seamlessly managed and interacted with on the Nervos CKB platform, maintaining Bitcoin's robust security model while utilizing CKB's advanced smart contract functionalities. 2. Trustless Operations Across Chains: This binding ensures that operations on one blockchain reflect accurately and securely on the other, without the need for intermediaries or centralized bridges, preserving the decentralized ethos of blockchain technology. For further information on CKB: Whitepaper: github.com/nervosnetwork/rfc…) RGB++ Lightpaper: talk.nervos.org/t/rgb-protoc… Cell Model: medium.com/nervosnetwork/htt… First-class Asset: medium.com/nervosnetwork/fir… CKB Positioning Whitepaper: github.com/nervosnetwork/rfc… CKB Economic Model Whitepaper: github.com/nervosnetwork/rfc… CKB Consensus Algorithm Whitepaper: github.com/nervosnetwork/rfc…

📡 著名历史学家、经济学家秦晖教授将与去中心化出版平台SilentBerry 创新合作，在比特币链上出版新书《拯救民主》🎊🎊 piped.video/RTlIL2VvSLE?si=IsOC… via @YouTube @CKB_CN @CKBEcoFund @rgbppfans

Today’s the day! Our first production mainnet, Khalani Arcadia, is now live, and integrations have begun! Powered by the Arcadia Intents Protocol (AIP), this unique approach unites general intents with collaborative solver networks to handle complex multichain intents processing and off-chain service automation. Huge thanks to all our supporters, and especially to our incredible team who overcame countless challenges to make this possible. This marks both a significant milestone and the first step toward realizing Khalani’s long-term vision. If you’re building solvers, intent protocols, agents, or UX products, please reach out. We’d love to chat about how we can collaborate. Onward!

A brief explanation of the RGB++ isomorphic binding, which I consider one of the most innovative designs in the Bitcoin L2 protocols. mirror.xyz/zhixian.eth/2xAcB…