◆ Field notes — Nº 03
Notes from the build — blockchain, systems, and the craft in between.
A 2-of-3 escrow sounds simple until you actually have to build one. Notes on PSBTs, key derivation, and the failure modes nobody warns you about.
Tokenizing a real-world asset is the fun part. ERC-3643, ONCHAINID, and the boring machinery that decides whether a transfer is even allowed to happen.
You don't rewrite everything in Rust. You reach for it exactly where a bug isn't a bug — it's a lost key, a double-spend, or a settlement that silently went wrong.
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