consensus

The public chain Sei announced that the SIP-6 proposal has been approved, and the development team Sei Labs will initiate the Autobahn consensus upgrade. This is a core part of the Sei Giga upgrade, which will change the mechanism of a single validator proposing blocks to multiple validators proposing transaction batches in parallel.This adjustment aims to enhance the network's ability to process order placements, order cancellations, and price updates. Sei's previously announced performance targets are to handle 200,000 transactions per second and achieve final confirmation in about 250 milliseconds. The announcement did not disclose the mainnet activation time.

The voting for the SIP-6 proposal on the Sei network has reached the quorum requirement. This proposal involves an upgrade to the consensus mechanism named Autobahn. According to the proposal design, validators will be able to propose transactions simultaneously, rather than submitting proposals one by one.Approval of the vote does not mean that the functionality will be immediately online. According to the proposal content, Sei must first complete the operational verification of the public testnet and pass a security audit before activating Autobahn. Both of these prerequisites must be completed prior to the official launch. The actual deployment depends on the performance of the testnet and the audit results.

The blockchain infrastructure company Gattaca announced the launch of the open-source Ethereum consensus client Silver. The company operates the Ethereum block builder Titan Builder and the relay Titan Relay. Gattaca stated that Silver was built from scratch, aiming to support shorter time slots and post-quantum security while maintaining decentralization, censorship resistance, privacy, and security. Currently, Silver is in the alpha stage, with audits and final testing yet to be completed.Gattaca claims that Silver's state transition function has a p99 latency of less than 10 milliseconds, approximately 10 times faster than other clients. During the mainnet window from October 17 to 20, 2026, Silver, Prysm, Lighthouse, and Grandine processed the same 20,300 canonical blocks. The median block processing latency for Silver was 6.5 milliseconds, with a p99 of 9.5 milliseconds, and the slowest block in the sample was 17.8 milliseconds; the second-lowest median was 33.5 milliseconds, and the second-lowest p99 was 91 milliseconds. All four clients operated as supernodes, subscribing to all 64 proof subnets and hosting all 128 data columns, with the executing client being ethrex v29.0.1.The above comparison used consensus processing metrics available for each client, excluding execution client processing time. Silver is based on Gattaca's Flux framework, using six threads bound to CPU cores for parallel processing, and comes with a low-latency peer-to-peer network, state hash library, formally verified BLS and KZG cryptographic libraries, and a node cluster for penalty protection. In another comparison, supernodes needed to verify about 32 times the proofs and about 16 times the KZG unit proofs relative to the default configuration, with block processing latency and resident memory still within a similar range.

According to information from GitHub, a core protocol draft named "Decoupled Consensus" has appeared in the Ethereum EIP repository. It proposes to separate the beacon chain's head voting from the finality proof voting to enhance fork choice security, shorten finality time, and lay the groundwork for a subsequent transition to post-quantum cryptography (PQ).The proposal is co-authored by Francesco D'Amato, Roberto Saltini, Yann Vonlanthen, Mikhail Kalinin, and Ben Edgington, and is currently still in the early draft stage, with multiple details yet to be determined. The submitters primarily hope to obtain an EIP number at this stage. The proposal is pending further review and has not yet been merged.

U.S. presidential envoy Wittekov will meet with Russian President Putin on October 21, and Trump's son-in-law Kushner will participate via video. Previously, the U.S., Ukraine, and Europe had detailed discussions on security guarantees and other aspects of a comprehensive peace framework, reaching a high level of consensus.

The two-day AI Summit (China·Chongqing Station) hosted by Star River has successfully concluded on September 29, 2026. Star River founder Jemmy, co-founders River He and Bison Liu attended the summit and engaged in in-depth discussions with the guests present.This summit focused on cutting-edge innovations in the AI industry, discussing the implementation of technology applications and the construction of industrial ecosystems. Several industry guests shared the latest practices and thoughts on the implementation of AI in the industry. DGrid AI participated in the topic discussions as a partner. DGrid AI is a decentralized AI intelligent reasoning network that provides developers with low-cost, verifiable AI multi-model calling services through a unified access layer, which attracted attention on-site.Participants engaged in in-depth discussions on topics such as the implementation of AI technology applications, the construction of developer ecosystems, and collaborative innovation in the industry, reaching multiple consensuses. The organizer, Star River, stated that it will continue to build industry exchange platforms in the future to promote AI technology innovation and industrial implementation.

Ethereum co-founder Vitalik Buterin stated that PeerDAS has been running stably for nearly a year with virtually no issues, which is an "underappreciated achievement" by Ethereum client developers.Vitalik mentioned that PeerDAS is a complex task and is the first large-scale blockchain system case to achieve "consensus on data availability without any single node downloading the complete block," realizing decentralized consensus without the need for complete data replication.

During Chinese President Xi Jinping's state visit to the United States, China and the United States reached an eight-point consensus on achievements. Both sides agreed to build a strategically stable relationship based on respect, fairness, and equality, and to support each other in hosting the APEC and G20 meetings. The two heads of state agreed on Iran's commitment to not develop nuclear weapons and recognized the positive role of the China-U.S. economic and trade consultation mechanism, reaching a mutual tariff reduction arrangement of 30 billion dollars. Both sides also agreed to establish a dialogue and communication channel for China-U.S. artificial intelligence.

The Consensus conference organized by CoinDesk will be held in early February 2027 in Hong Kong, marking the third consecutive year the event takes place in Hong Kong. The previous events in 2025 and 2026 attracted over 10,000 attendees.This year's Consensus in Hong Kong will focus on two main themes: institutional adoption of digital assets and artificial intelligence, with AI expected to receive more attention than in previous years, reflecting its growing role in the future monetary system. Hong Kong, with its robust regulatory framework and status as a global financial center, is regarded as one of Asia's leading digital asset hubs, and Asia is often considered the region with the highest adoption rate of digital assets.Last year's Consensus in Hong Kong featured speakers including Binance Co-CEO Richard Teng, Solana Foundation President Lily Liu, Tron founder Justin Sun, and Consensys CEO Joseph Lubin.

The Solana core client development team Anza announced that it is gradually removing floating-point operations from the Solana core protocol. The first layer, SIMD-0391, was activated in epoch 1026 of the mainnet Beta, replacing floating-point operations in the Stake Program and validator client’s warm-up and cool-down logic with fixed-point operations.The second layer, SIMD-0607, has been proposed and is under review, targeting the runtime itself to remove floating-point operations in the inflation rewards and rent calculation paths. Anza stated that floating-point operations can produce different rounding results on different hardware, validator clients, and compilers, which may lead to consensus divergence and network activity risks. These two improvements eliminate that risk by standardizing fixed-point operations. Further work will continue to address floating-point operations in other paths.

Justin Sun stated at the Bitcoin Asia 2026 conference in Hong Kong that the threat of quantum computing to blockchain and the entire financial system is widespread, and traditional banks like JPMorgan are also facing risks.Due to the highly decentralized nature of the Bitcoin community, which involves multiple participants such as miners, exchanges, and WBTC, reaching a consensus on quantum resistance will take a long time. Justin Sun mentioned that TRON has been developing quantum-resistant mechanisms over the past year, and in the first half of this year, they released a quantum-resistant address solution and launched it on the testnet, with plans to upgrade the entire network to a mainstream cryptocurrency network with quantum resistance capabilities by the end of this year.

Mizuho analyst Vijay Rakesh stated that NVIDIA's second-quarter earnings exceeding expectations has become a consensus, with the market focusing on AI spending outlook. Rakesh expects NVIDIA's adjusted earnings per share to be $2.08, with revenue at $92 billion, and the actual figures may be higher. He maintains a "Outperform" rating and a target price of $300.

The Supernova upgrade of MultiversX decouples consensus from execution, allowing the network to reach consensus on blocks before processing transactions. Before the upgrade, block production followed a sequential model: proposers selected transactions, executed them locally, and submitted blocks containing the results, while validators had to re-execute the same transactions before voting, making execution part of the consensus critical path. Supernova changes this order: proposers select transactions and directly propose blocks without prior execution; validators can immediately vote once they confirm the proposal complies with protocol rules, while execution occurs asynchronously in the background, with execution results typically referenced and notarized in the next block header, lagging consensus by about one block (approximately 600 milliseconds).To address the validity verification issues brought by decoupling, Supernova introduces a virtual memory pool state that tracks pending nonces, expected balance consumption, and transactions that have been proposed but whose execution results have not yet reached consensus, providing proposers with a forward-looking account view. Meanwhile, the Execution-Result Inclusion Estimator (EIE) limits the number of execution results that can be referenced in a block based on the capacity that the minimum specification node can safely handle; an automatic backpressure mechanism reduces block capacity when execution lags. Supernova has been producing 600-millisecond blocks on the testnet and devnet since August 20, with the mainnet expected to activate on September 10, 2026.

Sources from the Pakistani military and Iranian security agencies reveal that the United States and Iran have reached a consensus on the terms of a ceasefire agreement, which includes the freedom of navigation in the Strait of Hormuz. Both parties are expected to announce relevant news in the coming days and initiate negotiations and technical meetings based on the Islamabad memorandum.

Decred announced that the mandatory patch version v2.1.6 has been released, which includes a fix for a critical security issue related to consensus, preventing potential periodic de-anonymization mixing attacks.In addition, this patch also addresses several possible network-related denial of service (DoS) attack issues and improves the expiration duration of mixing sessions. The official urges users to upgrade as soon as possible, while noting that the Windows version of Decrediton has not yet been released and is expected to be launched the following day.