stack

The messaging protocol XMTP founder Shane Mac stated that XMTP will evolve into a self-operating open-source messaging stack, providing private conversations between people and agents, with infrastructure controlled by users, without requiring tokens or wallets. The network hosted by XMTP Labs will shut down in early 2027.Shane Mac mentioned that he founded XMTP five years ago because he believed that private messaging should not be owned by a single company. He recalled that the team envisioned using wallets as cross-application identities, allowing messages to follow identities, and using tokens to pay infrastructure operators, but this path was not realized. XMTP has never issued tokens and will not issue them now. He admitted that it was a wrong decision to persist with a single shared network for a long time, as developers have consistently requested the ability to self-host XMTP. Therefore, it has shifted to self-hosting, allowing developers to use, inspect, modify, and maintain the entire software suite without relying on Labs. Former employees will assist in maintaining the protocol, and Shane Mac himself will continue to be involved.The article introduces that self-hosted XMTP offers quantum-resistant end-to-end encryption, private one-on-one and group chats, encrypted identities, and message authenticity, as well as SDKs for mobile, web, server, and agents. Chief Technology Officer Nick Molnar has simplified the backend to a single Rust binary and integrated attachments, push notifications, handles, and signed webhooks for new messages. Each self-hosted network does not automatically interconnect by default, and agents from different tools must connect to the same backend to share conversations.

According to a report from ZDNet Korea on October 20, the AI chip company Groq, which has been effectively acquired by NVIDIA, is advancing the introduction of DRAM 3D stacked packaging in its next-generation chips to replace the fast but lower-capacity SRAM solution. Groq was founded in 2016 by former Google TPU designer Jonathan Ross, and it was reported that the company was acquired by NVIDIA in a roundabout manner last year.The report states that Groq is evaluating a solution called 3DS, which vertically connects DRAM chips through silicon vias for high-capacity packaging. 3D packaging allows multiple bare chips to be stacked vertically and operate as a single chip, reducing area and improving power efficiency compared to planar solutions. Both 3DS and HBM use silicon vias, but HBM focuses on transmission speed, while 3DS maintains existing DRAM interfaces and focuses on capacity expansion. Anonymous industry insiders indicated that Groq plans to adopt 3D packaging in its next-generation chips, stacking DRAM instead of SRAM; another individual noted that market demand is shifting towards larger capacity chips, prompting Groq to choose DRAM, which has a capacity advantage.

Zakura has announced an experimental network layer P2Pv2 for Zcash nodes, intended to replace the old protocol inherited from Bitcoin. This layer combines high-throughput networking, resource control, and a consensus engine tested for properties, allowing developers to add services without permission. Zakura states that approximately 50,000 transactions per second require each full node to continuously receive about 100MB/s of block data, while the 25-second block of NU7 can carry a maximum of 2MB, with existing network throughput differing by more than a thousand times from this rate. Tachyon can reduce the proof after entering the block, but the network still needs to propagate a large number of individual transactions.P2Pv2 replaces the protocol stack from about a decade ago with protocols that can be optimized for latency, throughput, or robustness, allowing a secure connection to carry multiple independent services. The transport layer uses its own zakura-quic, based on quinn-proto, utilizing QUIC and TLS 1.3, and authenticating peers with Ed25519 node identity. Related changes remove the dependency on Iroh, allowing nodes to configure socket buffers, flow control windows, timers, and connection admission before the TLS handshake. The new transport directly connects to peer addresses without using relays, external address lookups, automatic port mapping, or QUIC NAT traversal. Nodes sign identities, addresses, protocol scopes, and service IDs, allowing clients to find peers based on specific services.The independent component zakura-header-chain verifies block headers and retains competing branches in a directed acyclic graph, selecting the best qualified chain. Block synchronization schedules requests based on the delivery rates measured by each peer, and a verified commitment tree is used to skip the reconstruction of Sapling, Orchard, and Ironwood trees for each block. Currently, the Mainnet still defaults to the old P2P stack, while the Testnet and Regtest run dual stacks by default, with the native protocol version being p2p-v2/3. Zakura notes that P2Pv2 still has known denial-of-service risks and has not yet become a hardened trust boundary; production hardening, resource control, and block relay protocols are still in progress.

Stacks, the second-layer platform for Bitcoin, has released its third-quarter ecosystem report. The data shows that a total of 735 BTC entered the Bitcoin staking system during the first two locking periods. Since the PoX-5 hard fork, the number of STX participating in staking has increased by over 25%, rising from 392 million to 493 million.In the first locking period (Bond 1), a total of 230 BTC was deposited, with participants including 21shares, HashKey Cloud, UTXO Management, and Sypher Capital. The deposit amount in the second locking period doubled to 505 BTC. The locked value of Zest Protocol exceeds 80 million dollars, with deposits over 122 million dollars, total borrowings exceeding 42 million dollars, and 800 Bitcoin deployed as collateral.Stacks plans to launch a self-custodial lending feature backed by staked Bitcoin in the fourth quarter, along with the introduction of the Earn treasury, and further integration of stBTC with platforms such as Zest, Bitflow, and Hermetica. Additionally, Stacks plans to release the Epoch 4.1 network upgrade in early December, which includes improvements to the smart contract language Clarity.

According to The Defiant, the decentralized lending protocol Zest Protocol deployed on Stacks announced that October 23 will be the deadline for the exit of aeUSDC in Stacks Market V1, requiring users to complete the migration of relevant positions before this date.Since Stacks Market V2 only supports the USDC-backed stablecoin USDCx issued in partnership with Circle, the migration process from V1 to V2 will not automatically transfer aeUSDC positions. Users must first withdraw aeUSDC liquidity from V1, then directly exchange aeUSDC for USDCx via Bitflow, and finally deposit USDCx back into the V2 application.Another option is to cross-chain aeUSDC from Stacks to USDC on Ethereum via Allbridge Classic, and then use Circle's cross-chain bridge to transfer USDC from Ethereum to USDCx on Stacks. The Zest application will prompt users while they still hold V1 liquidity, supporting one-click migration of positions other than aeUSDC to V2.

Bitcoin News posted on the X platform that Strike has launched the Stacks Bitcoin savings envelope system, allowing users to divide their holdings into up to 5 custom-named buckets, each supporting fee-free regular purchases. Transfers between Stacks and the main balance are fee-free and unlimited, but funds must be transferred back to the main balance before withdrawal.Strike has added an interest of 3.6% on USD cash balances, with interest paid in Bitcoin, and the related assets remain stored in Strike's multi-signature cold storage.

The founder of the Bitcoin smart contract layer Stacks, Muneeb Ali, announced five key focuses for the first 30 days after returning as CEO of Stacks Labs, including expanding institutional business development, simplifying the management structure, releasing a roadmap for the next two years, strengthening public communication with large STX holders, and clarifying the value capture mechanism of STX.Muneeb Ali also stated that institutional demand for Bitcoin Bonds is increasing, and the future roadmap will also cover institutional-level Bitcoin privacy and quantum-resistant technology. Stacks plans to assign all intellectual property rights to a non-shareholder foundation.

Muneeb Ali, the head of Stacks Labs under the Bitcoin Layer 2 network Stacks, announced his CEO plan, promising to transfer the relevant intellectual property to the Stacks Endowment.He also committed to launching a two-year roadmap that covers Bitcoin privacy and post-quantum technology, and will hold a public conference call for token holders within 30 days.

According to the official announcement, Binance has launched the AI product stack Binance Intelligence, which includes three products: the free Binance AI for all users, Binance AI Pro that converts natural language into executable strategies, and Binance Agent OS for developers to build AI applications.Binance AI integrates charts, news, social platforms, on-chain data, and research tools, adjusting the interface dynamically based on user knowledge level, interests, and activity through a generative UI. It offers features such as "For You" tags, market briefings, smart tooltips, and Master Trade, gradually rolling out from today.Binance AI Pro runs each strategy in independent sub-accounts, requiring user review and approval before trading. It will be launched in a free-to-use model starting in the second half of October, with a Premium plan priced at 19.99 USDC per month. Since its launch in August 2026, Binance Agent OS has exceeded 280,000 daily calls.

Muneeb Ali posted on the X platform that he will serve as the new CEO of Stacks Labs. Last year, Stacks underwent an ecosystem restructuring, with Stacks Labs becoming the protocol's operational center; over the past year, Alex Miller served as the interim CEO of Stacks Labs.Muneeb Ali stated that his optimism for STX is higher than ever; with the successful launch of Bitcoin staking, there will be increased investment in the development of the Bitcoin capital market. As a result of this news, STX rose 10.9% in the past 24 hours.

According to BBX data, yesterday and in recent days, global listed treasury companies and digital asset trading platforms disclosed the latest developments in strategic mergers and acquisitions and fiat currency clearing infrastructure. The core information is as follows:Stack BTC plans to acquire precious metals dealer Direct Bullion for up to £12 million: Stack BTC, a Bitcoin treasury company under former UK Chancellor Kwasi Kwarteng, announced that it has officially signed a non-binding letter of intent to fully acquire the well-known UK precious metals dealer Direct Bullion for up to £12 million (approximately $16 million). The company clearly stated that this acquisition aims to obtain ample and stable cash flow income through the physical precious metals sales business and plans to continuously use all net cash flow generated by this business to increase its Bitcoin holdings in the secondary market.Banking Circle deepens cooperation with OSL Group, adding five major mainstream currency channels: Next-generation financial infrastructure service provider Banking Circle announced further deepened strategic cooperation with Hong Kong-listed stablecoin payment and trading platform OSL Group (00863.HK). Based on the existing euro clearing business between the two parties, Banking Circle has officially added multi-currency payment and clearing channels for five major fiat currencies: Australian Dollar (AUD), British Pound (GBP), Hong Kong Dollar (HKD), Singapore Dollar (SGD), and US Dollar (USD) for OSL, fully supporting OSL in accelerating the expansion of its B2B cross-border payment landscape for global institutional clients.

The UK Bitcoin Treasury Company Stack BTC (STAK) proposed to acquire the precious metals dealer Direct Bullion for up to £12 million (approximately $16 million) and plans to use the operating cash flow generated from precious metal sales to support Bitcoin accumulation. This non-binding agreement includes £3 million in cash, approximately £4 million in shares, and £5 million in performance-linked cash payments, with a minimum share issuance price of 6 pence and a lock-up period of four years.As Stack director Paul Withers controls the seller Direct Bullion, this transaction constitutes a related party transaction and is classified as a reverse acquisition, which still requires due diligence and the signing of a final agreement. Direct Bullion achieved revenue of £52.1 million and a post-tax profit of £2.15 million for the fiscal year ending January 2026. This acquisition will be Stack's first transaction under the strategy of "acquiring profitable companies to fund Bitcoin purchases." Stack BTC currently holds approximately 68 Bitcoins (around $5.2 million), and its stock price fell by 1% on the day the news was announced.Nigel Farage invested £215,000 through his company Thorn In The Side, holding approximately 6.3% of Stack. Previously, Reform UK received donations of $48.5 million each from crypto billionaires Christopher Harborne and Ben Delo within 24 hours, totaling approximately $97 million, setting a record for political donations in the UK.

The researcher from the cryptocurrency research institution Four Pillars, 100y_eth, stated: Many on-chain experiments are shutting down or transforming without proving product-market fit, and this trend will become more evident in 2026. The on-chain market is increasingly polarized, with one side being speculative demand areas such as meme coins, perpetual futures, and prediction markets, while the other side includes stablecoins, RWA, and treasuries related to the real economy.As viable markets narrow to at least a few categories, companies from different starting points, including Coinbase, Robinhood, MetaMask, and Kalshi, are converging on the same product stack: perpetual futures, prediction markets, meme coins, stablecoins, and RWA. This does not mean the end of on-chain native businesses; new categories can still emerge through experimentation and develop into sustainable markets.

According to The Wall Street Journal, the Pentagon is negotiating a loan of about 5 billion dollars to the AI cloud computing startup FluidStack to strengthen the supply chain of data centers in the United States.

According to Bitcoin Magazine, the Bitcoin fintech company Castle announced that it will open its automated Bitcoin financial stack to individual users and launch a pioneering feature in this category: users can choose to receive dividend income in cash or Bitcoin at any ratio.Castle's revenue comes from the perpetual preferred stock STRC issued by Strategy, which was incorporated into the platform earlier this year and currently pays an annualized dividend of 12% on a semi-monthly basis. Users can receive 100% of the dividends in cash, convert 100% to Bitcoin, or choose any ratio between the two. According to the company, most users opt for a compromise solution, using cash to cover daily expenses while automatically reinvesting the remaining portion into Bitcoin with each dividend payout.Castle co-founder and CTO João Almeida stated that investors have long faced a dilemma of choosing between stable income and holding Bitcoin. Castle allows users to achieve both cash flow and long-term upside by automatically converting a portion of the dividends into Bitcoin. Previously, Castle only catered to business clients such as restaurants, gyms, accounting firms, and e-commerce; the opening of personal accounts was due to repeated requests from business owners. Castle was co-founded by Almeida and CEO Stephen Cole and has received investments from Boost VC and Winklevoss Capital.

Polygon Labs announced that it has completed a SOC 2 Type 1 examination for the Polygon Open Money Stack API and dashboard, covering the security trust services criteria. The independent auditing firm Schellman & Company, LLC determined that Polygon has implemented appropriate security controls.SOC 2 is an auditing framework established by the American Institute of Certified Public Accountants. A Type 1 examination assesses whether the design of the control system is correct at the time of the examination, while a Type 2 examination is ongoing and will test the execution of relevant controls over several months of actual operation. The report states that complementary user entity controls are not necessary for Polygon to fulfill its service commitments.Polygon Labs CEO Marc Boiron stated that as a technology provider handling real funds, it is essential to meet the standards of financial institutions, and most crypto infrastructure has never been audited against this standard for systems actually integrated by customers. Type 1 confirms that the control design is correct, and Type 2 will confirm its daily operation.

On August 21, 3D storage-computing integrated chip company Qianhe Yibang announced that its self-developed global first 4-layer 3D DRAM stacked storage-computing integrated chip successfully returned to the wafer and was powered on, marking the transition of this technology from validation to the engineering implementation stage. This chip adopts a three-dimensional integrated native computing architecture, with data access and storage bandwidth improved by an order of magnitude compared to traditional solutions, while access and storage power consumption, latency, and single data processing costs have all decreased by an order of magnitude.Qianhe Yibang was established in January 2024, incubated by NetEase, and recently completed over 2 billion yuan in Series B financing.

According to BBX data, yesterday global US stock, Hong Kong stock listed companies, and asset management giants disclosed the latest developments in digital asset injection, compliance trust listings, and institutional-level custody, with the core information as follows:ZeroStack received a $1 billion Memecore token injection: 0G Treasury Company ZeroStack Corp. (NASDAQ: $ZSTK) announced that Puple AI Inc. and Blockcat Pte. Ltd. have reached an agreement to inject a total value of $1 billion in Memecore tokens (M) into the company. In exchange, ZeroStack will issue 3,500,000 shares of common stock, as well as pre-financing warrants to purchase up to 36,198,293 additional shares of common stock (with an issue price of $25.19 per share, more than 12 times the recent market price).Grayscale advances Zcash Trust listing on the NYSE Arca market: Grayscale submitted the fourth amendment of the registration statement for Grayscale Zcash Trust (ZEC) to the SEC, intending to list it on the NYSE Arca market (code: ZCSH). After listing, it will support authorized participants to continuously purchase and redeem shares (previously traded only on OTCQX and not redeemable). As of June 30, 2026, the trust holds approximately 2.3% of the circulating supply of ZEC, with a net asset value (NAV) of approximately $155.2 million; additionally, a subsidiary of Grayscale's parent company DCG is negotiating to purchase trust shares with approximately 200,000 ZEC.OSL Group's enterprise-level stablecoin USDGO connects to Ceffu institutional custody: Hong Kong listed company OSL Group (00863.HK) announced that its compliant enterprise-level stablecoin USDGO has officially become one of the custodial assets of the institutional digital asset custody platform Ceffu. Qualified Ceffu institutional clients can now directly deposit, hold, and withdraw USDGO through their exclusive custody accounts.