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How to Validate Crypto Wallet Addresses Offline in Java

Crypto address validation is one of those small backend features that becomes important very quickly. If you are building a wallet, exchange flow, payment form, fintech dashboard, or internal…

  • Chainwarden library enables offline validation in Java
  • Validates address syntax, encoding, prefixes, and checksums
  • Cannot confirm address safety or ownership

Automatic HTTPS on Kestrel in 2026, now that LettuceEncrypt is archived

If you run an ASP.NET Core app directly on Kestrel, with no nginx or cloud load balancer in front, getting a real TLS certificate has always been the awkward part.

  • LettuceEncrypt archived in April 2025, impacting HTTPS for Kestrel apps
  • Let s Encrypt issues six-day certificates, reduced default lifetime to 45 days
  • AutoHttps library simplifies HTTPS setup for Kestrel in 2026

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