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pol

PoL (Proof of Liquidity) is a consensus mechanism designed to validate transactions through the provision of liquidity. Unlike traditional Proof of Work (PoW) or Proof of Stake (PoS), PoL rewards participants with block rewards for providing liquidity. This mechanism is commonly used in decentralized exchanges (DEX) or liquidity pools to incentivize users to provide liquidity, thereby enhancing market efficiency and stability. The advantage of PoL lies in its ability to encourage more liquidity providers to participate, strengthening market depth and trading liquidity.
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Bank of Japan Governor Kazuo Ueda: Monetary policy has entered a new phase and will continue to raise interest rates

According to Jinshi Data, Bank of Japan Governor Kazuo Ueda stated that Japan's core inflation is close to 2%, marking a policy shift, and the central bank's policy has entered a new phase where inflation cannot be allowed to rise further. Due to core inflation being close to 2% and the financial environment remaining accommodative, the Bank of Japan will continue to raise interest rates and adjust its monetary easing policy. The central bank will discuss whether to adjust the assessment of "core inflation close to 2%" at the upcoming meeting.Kazuo Ueda mentioned that the situation in the Middle East, demand for artificial intelligence, and exchange rates will influence the timing of interest rate hikes. The central bank has been monitoring the impact of the weakening yen and the Middle East situation on inflation. He also stated that it is difficult to make a clear statement about Japan's neutral interest rate, and the stability of 2% inflation is becoming increasingly important. The central bank will focus on consolidating the 2% inflation target. Additionally, Ueda noted that the main takeaway from this week's meeting (including the G20) was the communication with other policymakers regarding the impact of the Middle East conflict and demand for artificial intelligence on the global and Japanese economy, and there was nothing heard that deviated from the Bank of Japan's fundamental views. He exchanged opinions with Federal Reserve Chairman Waller but will not disclose specific details; since the meeting in Asheville, he has not contacted U.S. Treasury Secretary Yellen.

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.
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