A chain is only as safe as the Tuesday you can reconstruct its evidence.
Most quantum readiness reports are written to be admired, not audited. LayerQu does the other thing. Every number on this desk is grounded in public artifacts, and the methodology is documented and version-controlled in the open. If a score cannot be defended from those artifacts, it does not ship. The tradeoff is that our scores look lower than the rest of the market. The consolation is that they are the scores you can actually defend in a meeting.
Top 10 by QRI
| # | Chain | Profile | QRI | Band | Hybrid | |
|---|---|---|---|---|---|---|
| 1 | XRP Ledger (XRPL) | L1 | 48 | Transitioning-Partial | COND | [VIEW] |
| 2 | Algorand | L1 | 47 | Prototyped | PASS | [VIEW] |
| 3 | Starknet | rollup-L2 | 46 | Transitioning-Partial | COND | [VIEW] |
| 4 | zkSync Era | rollup-L2 | 34 | Preparing | COND | [VIEW] |
| 5 | IOTA | L1 | 32 | Intentional | FAIL | [VIEW] |
| 6 | Polkadot | L1 | 31 | Architected | PASS | [VIEW] |
| 7 | Hedera | L1 | 30 | Planning | PASS | [VIEW] |
| 8 | Tezos | L1 | 30 | Preparing | FAIL | [VIEW] |
| 9 | Aptos | L1 | 29 | Planning | PASS | [VIEW] |
| 10 | Bitcoin | L1 | 28 | Planning | PASS | [VIEW] |
The best-prepared chain in this universe is not the biggest one. Algorand is one-thousandth the size of Ethereum by market cap and one-three-hundredth by application count. It has a post-quantum signature running on mainnet since November 2025. Ethereum has research papers. Size is a poor predictor of readiness. Intention is a better one.