"Whale Adds to Long Position, Now Holds a Total of 105,000 ETH in Longs"

February 13th — Official sources confirm Hyperliquid has activated the cross-margin feature for its HIP-3 permissionless perpetual contract market on testnet (mainnet support is not yet live). Notably, this feature qualifies for Hyperliquid’s mainnet-level bug bounty program. For HIP-3 deployers: An asset must first have cross-margin enabled before users can utilize it for cross-margin trading. How it works: Under a unified account, all cross-margin perpetual contracts using the same collateral asset can share margin across multiple DEXs. Assets from different DEXs are protected up to their maintenance margin threshold to prevent automatic liquidation caused by sharp price swings on other DEXs. This “protective cross-margin” system balances system solvency with user experience. Key caveat: Cross-margin is not designed for DEX abstract interfaces, and such interfaces should not support cross-margin usage via abstract trades. Users should use a unified account or portfolio margi

Israeli prosecutors have indicted a reserve soldier and a civilian, charging them with using classified military information to place bets on blockchain-based prediction platform Polymarket, The Block reported on February 13. Prosecutors allege the soldier accessed sensitive operational intelligence through his military position and shared it with the civilian, who then used the information to wager on events tied to military operations on Polymarket. Authorities noted the suspects were arrested in a joint operation.

On February 13, official sources confirmed that Solana ecosystem trading platform Bullet has launched perpetual contract trading on its mainnet. Its base-layer architecture is built for high-speed trading, supporting up to 30,000 orders per second with latency as low as 1 millisecond. Currently, Bullet’s mainnet is restricted-access. Users looking to participate early need an invitation code, which can be obtained by reaching out to the team. Access for waitlist users will be rolled out gradually in batches, with the first batch of whitelisted users gaining entry today. It is reported that Bullet offers derivatives, spot trading, and lending products on a single platform, delivering a one-stop “trinity” service.

**Binance Founder CZ’s Key AMA Takeaways (Feb 13)** 1. **Meme Trading & Markets** Meme traders need personalized strategies, CZ said. Meme coins require strong cultural roots for long-term success (e.g., Dogecoin, Floki’s loyal fan bases). This bear market may not follow the 4-year cycle—traders must assess risks carefully, but the industry will thrive long-term. 2. **Industry Builders** Developers shouldn’t fixate on short-term swings. Projects must update offerings and engage communities regardless of market conditions. Long-term outlook: Market growth, Bitcoin/major cryptos outperforming, most mainstream public chains succeeding. Teams should refine products (skip competitor comparisons) and prioritize users: protect funds, low fees, fast speeds, top UX—“everything else is noise.” 3. **Personal Focus** CZ values societal impact over the “richest person” label. He’s fortunate to have resources (capability, team, funding, time) to do meaningful work: “Few my ag

On February 13, details on the relevant page show Bitcoin Improvement Proposal 360 (BIP-360) has been integrated into the official codebase. The proposal introduces the Pay-to-Merkle-Root (P2MR) output type, which aims to boost Bitcoin’s defense against quantum computing threats via a soft fork.