Chain profiles

Post-quantum secure at mainnet today, with quantum-resistant signatures built in from genesis.

• Quantum Resistant Ledger QRL

  Native 92.0

  Post-quantum signatures have been mandatory for every account since the mainnet launched in June 2018, and no elliptic-curve alternative has ever existed on the network.

• Mochimo MCM

  Native 90.0

  Mochimo has signed every mainnet transaction with hash-based WOTS+ since launching in June 2018, and its node source contains no elliptic-curve signature implementation at all.

• Abelian ABEL

  Native 84.5

  A lattice-based privacy chain that has run post-quantum signatures and key encapsulation on mainnet since 2022, built on primitives inspired by CRYSTALS-Dilithium and Kyber.

Post-quantum signature features are live on mainnet and a migration for existing holders is underway.

• NEAR Protocol NEAR

  Shipping 81.5

  NEAR stabilised ML-DSA-65 as a first-class account signature scheme on mainnet in the 2.13 release of July 2026, and any account holder can rotate to it in a single transaction without changing their address.

• Algorand ALGO

  Shipping 77.5

  Falcon-signed State Proofs have secured Algorand's history since 2022 and Falcon-signed transactions have run on mainnet since November 2025, with broad resilience targeted for end-2027.

• Nervos CKB CKB

  Shipping 75.5

  An audited SPHINCS+ lock script is deployed on CKB mainnet, so users can hold funds under a NIST-standardised post-quantum signature today without a hard fork.

• Bitcoin Cash BCH

  Shipping 66.0

  The Layla upgrade of 15 May 2026 activated the scripting features that make Quantumroot work, so hash-based post-quantum vaults now run on Bitcoin Cash mainnet as contracts, without any change to the chain's own signature scheme.

• Solana SOL

  Shipping 54.5

  A quantum-resistant Winternitz vault has run on Solana mainnet for over two years, but protocol-level migration to Falcon is explicitly conditional and carries no published dates.

A funded roadmap with public dates and active research exists, but no post-quantum signature is live on mainnet.

• XRP Ledger XRP

  Committed 46.5

  A dated four-phase roadmap targets full post-quantum transition by 2028, with ML-DSA already deployed on AlphaNet and a Q-Day contingency plan defined.

• Sui SUI

  Committed 45.5

  Committed in August 2026 to two finalised NIST schemes, with a migration path that lets existing accounts move to quantum-safe keys without changing their addresses.

• Hedera HBAR

  Committed 42.0

  Published a phased post-quantum migration roadmap in April 2026, targeting a new post-quantum key type for users in 2027 with existing keys continuing to work.

• Stellar XLM

  Committed 41.0

  A published Quantum Preparedness Plan whose first stage adds ML-DSA verification to Soroban as native host functions, letting contract accounts authenticate with quantum-safe keys.

• Zcash ZEC

  Committed 41.0

  Privacy is not quantum safety: Zcash spends are authorised by elliptic-curve signatures, though ZIP 2005 has added a quantum recovery path for notes in the new Ironwood pool ahead of a full transition.

• Aptos APT

  Committed 40.5

  Proposed SLH-DSA-SHA2-128s for transaction signatures as an opt-in scheme, accepting signatures 82 times larger than Ed25519 in exchange for minimal new security assumptions.

• Polkadot DOT

  Committed 40.5

  The Web3 Foundation published a post-quantum roadmap covering Polkadot and JAM, naming Dilithium for consensus signatures and Falcon for accounts.

• Ethereum ETH

  Committed 40.0

  A dedicated Ethereum Foundation post-quantum team formed in January 2026, with hash-based validator signatures in weekly devnets and core infrastructure targeted for around 2029.

• Cardano ADA

  Committed 37.5

  Cardano Vision 2026 makes post-quantum security one of three strategic pillars, with named research deliverables running from primitive assessment to a published migration SIP.

Post-quantum work on the chain’s own signatures is documented by people with authority over it, in a formal improvement proposal or a public research programme, but no scheme is agreed and no timeline is published.

• Tron TRX

  Debating 34.5

  Mainnet signs with ECDSA on secp256k1, but Falcon-512 is activated on the public Nile testnet under a formal improvement proposal that names its parameter sets and wire formats.

• BNB Chain BNB

  Debating 22.5

  Tested ML-DSA-44 signatures on its own network and published the cost honestly: throughput fell around 40 per cent and blocks grew nearly eighteenfold.

• Monero XMR

  Debating 21.0

  Monero funded and completed a post-quantum research programme in 2020 and has published candidate schemes since, but no post-quantum work is deployed and a quantum adversary would break its privacy retroactively as well as its funds.

• Bitcoin BTC

  Debating 17.0

  Two post-quantum BIPs reached Draft status in February 2026, but neither introduces a post-quantum signature, no activation path is agreed, and roughly a third of supply sits in addresses with exposed public keys.

The signatures securing funds on mainnet today are quantum-vulnerable, and no public post-quantum plan, proposal or research programme addressing them could be found.

• IOTA IOTA

  Exposed 18.5

  Widely described as quantum-resistant on the strength of a scheme it removed in 2021; IOTA's layer 1 has signed with Ed25519 since Chrysalis and post-quantum support exists only in IOTA Identity.

• Internet Computer ICP

  Exposed 14.5

  Every layer of the chain-key architecture rests on elliptic curves, from the BLS signatures that certify state to the threshold ECDSA and Schnorr keys canisters sign with, and DFINITY has published no post-quantum programme addressing any of it.

• TON TON

  Exposed 13.0

  Signs with Ed25519 and has no published post-quantum roadmap, though its wallet-as-smart-contract model means a new signature scheme could be adopted without changing the protocol.

• Litecoin LTC

  Exposed 12.5

  A Bitcoin-derived chain using ECDSA on secp256k1 with no published post-quantum roadmap, though its MWEB soft fork proves it can enact consensus changes Bitcoin has not managed.

• Bittensor TAO

  Exposed 11.0

  A Substrate chain signing with sr25519, carrying no published post-quantum position of its own, while the Polkadot ecosystem it inherits its runtime from has an active RFC on exactly that question.

• Dogecoin DOGE

  Exposed 11.0

  A Bitcoin-derived chain using ECDSA on secp256k1, with no published post-quantum roadmap and the same governance difficulty Bitcoin faces without the same research effort.

• Avalanche AVAX

  Exposed 10.5

  Signs with ECDSA on secp256k1 across its chains, with no published post-quantum roadmap found at the time of writing.

• Cronos CRO

  Exposed 8.5

  An Ethereum-compatible chain on the Cosmos SDK, signing with ECDSA on secp256k1 at both layers, with no published post-quantum position from Cronos Labs or Crypto.com.

• MemeCore M

  Exposed 8.5

  An Ethereum-compatible layer 1 whose node is a go-ethereum fork, signing with ECDSA on secp256k1, with no published post-quantum position of any kind.

• Hyperliquid HYPE

  Exposed 7.0

  Authenticates with ECDSA on secp256k1 through EIP-712 typed-data signing, with no published post-quantum roadmap found despite very large open interest.