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first_img OKX launches public testing for on-chain spot and perpetual contracts, simulating traditional financial market trading

According to The Defiant, OKX announced the launch of the Onchain Spot and Perps public beta within its app. Qualified users can use free points (XP) to simulate trading in stock, index, and commodity markets, preparing for subsequent real fund trading. This simulated trading competition shares a prize pool of 250,000 USDT with Outcomes Season 3, running from October 14, 22:00 EST to November 14, 11:00. XP points have no cash value and cannot be withdrawn, transferred between accounts, or exchanged for financial instruments.The first simulated markets include gold, S&P 500 ETF, SpaceX, and Nvidia themes, with separate trading pairs for spot and perpetual contracts. Participants are testing trading strategies rather than purchasing shares of the aforementioned companies. OKX's product announcement indicates that qualified customers come from Southeast Asia, Northeast Asia, the Commonwealth of Independent States, as well as the Middle East and North Africa; users must complete identity verification and use a passkey to open a dedicated on-chain account through their existing OKX account.The trading venue operates on Exchange OS built on X Layer, and OKX refers to this account as self-custodial, supporting a unified balance between spot, perpetual contracts, and Outcomes. The spot and perpetual markets share margin, eliminating the need for internal transfers between product accounts.OKX stated that after the competition ends, real fund trading will be opened, allowing users to fund their on-chain accounts from their OKX exchange accounts, with spot and perpetual contracts settled on-chain in USDS. The activity XP and positions will not convert to real fund positions.

Polygon Labs: Bor v2.1.3 released, fixing two DoS security vulnerabilities

Polygon Labs official announcement, Bor v2.1.3 is officially released to the public, previously distributed in private version form to validators and major infrastructure providers. This update fixes two medium-severity denial-of-service vulnerabilities in BlockSTM V2 parallel block execution, both submitted by security researchers through the Immunefi bug bounty program.Unbounded keccak256 cache issue: Attackers can fill hundreds of MiB of cache during the speculative execution phase by constructing specific transactions, leading to node memory exhaustion and delayed block production. The fix is to set a capacity limit on the shared cache. Repeated code hash calculation issue in parallel execution: A single transaction can cause the parallel processor to take about 11 seconds, severely affecting node activity. The fix is to cache code hash results on a per-transaction basis.In addition, this update also includes several internal hardening measures: the transaction pool address filtering adds interception for EIP-7702 SetCode authorization, RPC batch execution pool concurrency limit fixes, consistency fixes for reading balances across self-destruct boundaries in parallel execution, and an automatic cleanup mechanism for pending transactions (default 3 hours). The affected versions are Bor v2.1.1 and v2.1.2. v2.1.3 is a non-hard fork, and nodes can upgrade individually without coordination. No exploitation records of the two vulnerabilities have been found on the mainnet and testnet Amoy.

first_img Solana Mobile announced Ledger as the first hardware expansion partner

According to PR Newswire, Solana Mobile, the mobile business of the Solana ecosystem, announced at the Ledger Op3n 2026 event in Paris that the hardware wallet company Ledger has become its first hardware expansion partner. The Solana dApp Store and wallet will merge into the Seeker app and integrate with the new device Ledger Atom, which will be pre-installed on the device's home screen for users to access the Solana ecosystem. Pre-orders for Ledger Atom are now open.Ledger Atom is based on the Android open-source project and features a secure element running Ledger OS, with a protection level of EAL6+, displaying and touch control physically isolated from the Android system. Signing and approval are completed in secure mode, and the device includes tamper-proof and tamper-evident solutions, sold exclusively through the Ledger official website. The built-in app store currently has over 1,500 applications covering categories such as trading, payments, gaming, and AI. Existing Seeker users are unaffected, and developers can reach more devices with a single submission.This collaboration builds on Solana Mobile's opening of the Solana Mobile Stack to Android manufacturers at the World Mobile Communications Conference in March 2026. The SKR token is used to reward user participation, developer building, and hardware vendor integration. Seeker has a transaction volume exceeding $13 billion, with 154 million transactions and over 200,000 devices sold; the company shipped Saga in 2023 and will ship Seeker in 2025.
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