Solana2026-08-21 00:39:47Researchers disclose Solana PoH clock attack ahead of Alpenglow mainnet activationResearchers from USENIX Security have publicly disclosed a clock attack against Solana’s Proof of History, according to CryptoSlate, saying the issue had already been privately reported to the Solana development team in December 2025. The paper describes how a malicious scheduled leader could use a “re-anchoring” technique to slow the advance of PoH logical time, giving itself a longer transaction selection window within the same span of physical time. The researchers also said the attack could use TowerBFT’s fork-choice mechanism to isolate blocks produced by honest leaders, while requiring less than 33% stake. The issue was not reviewed in Anza’s 50,000 SOL Alpenglow security competition, which closed on Aug. 19, because the rules excluded behavior that can only be triggered before Alpenglow is activated. Solana developers said they are aware of the behavior, consider the most severe scenario unlikely under current conditions, and expect the Alpenglow upgrade to remove the core preconditions for the attack. Alpenglow code is already included in the Agave 4.2 client but has not yet been activated on mainnet, with activation expected alongside Agave 4.3.1300
Solana2026-07-24 02:40:16Solana Deep Dive: 65K TPS, Sub-Cent Fees, but Outages and Centralization Concerns RemainSolana is a high-performance Layer-1 blockchain using PoH+PoS, achieving 65K theoretical TPS and sub-$0.01 fees. This piece explains its mechanics, ecosystem, tokenomics, comparisons with Ethereum, and the key challenges of network outages and centralization.750
SelsiWorld2026-07-23 08:25:15SELSILA Airdrop Deadline Alert: Unverified Tokens Will Be Burned ForeverSelsiWorld warns all airdrop participants to complete Proof of Humanity (POH) before the deadline or lose their Selsi Coin allocation permanently. No reclamation after the cutoff.1930
Solana2026-07-08 12:08:12Solana's Proof of History: How the 'Distributed Clock' Achieves Speed and EfficiencyThis article explains Solana's Proof of History (PoH) consensus mechanism, which uses Verifiable Delay Functions for cryptographic timestamps. It covers PoH's working principle, pros (high throughput, scalability, low energy) and cons (centralization risk, complexity), and compares it with PoW and PoS.1860
Solana2026-07-08 12:06:19Solana's Killer Feature: How Proof of History Boosts Blockchain EfficiencyProof of History (PoH) is Solana's innovative consensus mechanism that uses Verifiable Delay Functions to create immutable timestamps, enabling high throughput, low latency, and energy efficiency. Explore how it works, its pros and cons, and how it compares to Proof of Work and Proof of Stake.1880
