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Sign-In with Ethereum in Next.js 16: SIWE with viem, iron-session and a Replay-Proof Nonce (Tested)

Cross-posted from my blog. The original, with any updates, lives on fabwaseem.com . Sign-In with Ethereum (SIWE) lets a user log in by signing a plain-text message with their wallet, as defined in…

  • Implement SIWE in Next.js 16.4.3 using viem 2.57.11 and iron-session 9.0.1
  • Issue nonce, sign message with user's wallet, and verify server-side
  • Store nonce server-side, delete upon first use to prevent replay attacks

S&P 500 Sell-Off: Is Now the Right Time to Buy the Dip?

If you're in it for the long haul, it's almost always "the right time" to buy the S&P 500.

  • S&P 500 index dipped by 2.5%, causing investor speculation
  • Experts advise against market timing, buying based on short-term dips
  • Long-term investors with diversified portfolios likely to earn significant returns

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