DoctorBlocks - Switchboard
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DoctorBlocks - Switchboard
@DoctorBlocks
CTO https://t.co/HHnr1bGRGt ex-Google Security and embedded systems nerd








Fetching transaction history on Solana Historically: call getSignaturesForAddress -> returns N signatures -> call getTransaction for each signature Now: call Helius' getTransactionsForAddress that combines this on a DB level this results in a 3-10x speedup for your apps


PDAs are the most underrated primitive in crypto. We built AgentWallets vault system entirely on them — no private keys, deterministic addresses, policy-enforced spending. @toly got this right from day one. agentwallet.fun #Solana #AI #MCP

Anthropic pointed Claude Opus 4.6 at some of the most heavily fuzzed open source codebases in the world, projects with millions of hours of CPU time behind them, and found 500+ high-severity vulnerabilities. Some had been hiding for decades. Instead of throwing random inputs like traditional fuzzers, Claude reads code like a human researcher, spotting patterns from past fixes and reasoning about what inputs would break logic. They've started reporting and patching. This is the moment AI tips the scales toward defenders in cybersecurity. red.anthropic.com/2026/zero-days/









