Looked at Ethereum Fusaka a bit, and noticed EIP7939 is in (CLZ opcode - clear leading zeros). Sounds obscure, but actually leads to a bunch of mathy optimizations, allowing compression algos, like finding log2(x) or even normalization steps in DeFi formulas. It is also used in merkle proofs and hashing optimizations, and can help with representing variable length numbers compactly, this is good for encoding or on-chain compression. And AFAIK it can help with randomness - quickly determining bit-distribution. I'm thinking... on chain proof of rarity tiers: rarity being the CLZ of a deterministic hash. Something like: ``` h = keccak256(user || salt || context) tier = clz(h) // 0–256 mint price / allocation / reward ∝ 2^tier (or a lookup) ``` This gives us: - constant-time gas-tiny lookup, no loops - sybil-resistant knobs where a minimum tier is required to mint - zk-friendly for proving rarity off-chain - composable: can use tiers to throttle API relays, gate VIP queues, set dynamic fee rebated in AMMs, all without storage scans (imagine: higher CLZ = better route rebate on sector specific chains like @katana) This would have come in handy with @RmrkApp Kanaria back in the day 🥺 I expect to see it in fullmath, bitmaps storage logic, ZK circuit helpers, and more. 100 likes and 10 RTs and I build an open source prototype of this on a testnet before Fusaka is out.