Day 5/5 ~ Unpacking Confirmations Final round and closing thoughts Over the last days, we’ve unpacked what confirmations really mean - and why getting them right is critical for cross-chain apps. Key takeaways: ~ [*] Confirmations are about confidence, not just block counts. ~ [*] Finality varies per chain - some are deterministic, others probabilistic or soft signals. ~ [*] Speed vs. security depends on context. ~ [*] Faster, safer confirmations unlock better UX, capital efficiency, and composability. Here’s where it matters most: → Exchanges and some message-passing protocols run full nodes to confirm L2/L3 transactions before crediting deposits, minting assets, or relaying events. Waiting for finality on Ethereum can take 15+ minutes - too slow for good UX. To go faster, some confirm straight from the sequencer, but that’s risky: hacks, reorgs, downtime, and inaccessible funds can follow. Espresso changes this. It gives rollups programmable, chain-aware confirmations in seconds, backed by HotShot BFT consensus - safer than a single sequencer, faster and cheaper than Ethereum. Even L2s/L3s settling to Ethereum can get similar other L1s speed without sacrificing security. And confirmations are just the start. Espresso is a base layer purpose-built for rollups - bringing the safety, speed and economics to power the next generation of cross-chain apps. All previous days are below ↓