New series. The top 100 by market cap, one asset a day, from #100 down. One question each: if a quantum computer able to run Shor switched on tomorrow, what breaks, who is exposed, and is there a way out. Signatures, keys, migration. Snapshot: CoinGecko Oct 1
#95 PONS (Robinhood Chain). Fixed supply from a launch factory, so no mint key to crack. Theft: yes, ECDSA accounts as on Ethereum. Consensus: none of its own, one operator-run sequencer, also ECDSA. Hidden inflation: no. Privacy loss: none. Way out: inherits Ethereum's plan.
@Zcash@ShieldedLabs Of the four, Poseidon is the one to watch. Youngest, built for ZK circuits, and it carries algebraic structure the others avoid on purpose. That structure is what makes it cheap to prove, and what makes it the likeliest place for an AI-found attack to land first.
Quantumnet is the most complete PQ testnet in this series so far. ML-DSA-44 for accounts, hash-based XMSS with STARK aggregation for consensus, ZODA for data availability. And Tezos amends itself on chain. Shipping it is a vote, not a fork.
# 96 XTZ (Tezos). Theft: yes, every mainnet key type, tz1 to tz4, is elliptic curve. Consensus: yes, attestations aggregate with BLS. Inflation: capped, a Sapling pool can only drain the tez it holds. Privacy loss: yes, for Sapling users. Way out: full-stack PQ, testnet only.
The loans themselves live off chain, in legal records. What a quantum attacker could forge is the registry of who owns them. For a regulated lender that is recoverable through courts. For a holder of the token on a secondary market, it may not be.
#97 HASH (Provenance). A Cosmos SDK chain where Figure records billions in home loans. Theft: yes, accounts sign with secp256k1. Consensus: yes, validators sign with Ed25519. Hidden inflation: no. Privacy loss: none to lose. Way out: no PQ key type in production Cosmos SDK.
TRON's testnet (TN) upgrade covers more than wallets. It also moves block producer signatures to FN-DSA-512 and ML-DSA-44. That closes the consensus door too, which most PQ plans leave for later. Mainnet target was Q3. Q3 ended Tuesday.
#99 SUN (https://t.co/Ijc3cXcs5M). A TRC-20 token, so it inherits TRON. Theft: yes, ECDSA keys show after an account's first transaction. Consensus: yes, 27 block producers sign on the same curve. Hidden inflation: no. Privacy loss: none to lose. Way out: TRON's PQ signatures TN
#100 Aptos (APT). Theft: yes, any account that has signed shows its Ed25519 key. Consensus: yes, validator keys are elliptic curve. Hidden inflation: no, amounts are public. Privacy loss: nothing to lose. Way out: rotate keys in place; SLH-DSA is a switch governance flips later.
5/ ADMIN KEYS. Stablecoins, wrapped tokens and bridges usually have an issuer or multisig that can mint, freeze or upgrade. Those keys are elliptic curve too. Crack them and you control the token, no matter how secure the chain underneath it is.
New series. The top 100 by market cap, one asset a day, from #100 down. One question each: if a quantum computer able to run Shor switched on tomorrow, what breaks, who is exposed, and is there a way out. Signatures, keys, migration. Snapshot: CoinGecko Oct 1
4/ CONSENSUS. Proof of stake runs on validator signatures, also elliptic curve. Forge enough of them and you can finalize your own version of the chain. Proof of work is mostly hashing, where quantum gives only a square-root speedup. Mining survives. Wallets do not.
The Fed hiked 25bp to 3.75-4.00%, unanimously. In July the same committee split 9-3 to hold. Two months and one CPI print turned three dissents into zero. The median dot says one more this year. BTC near $76k is not pricing the rate. It is pricing the path.
Six months ago Google scored the point-addition step of a quantum attack on secp256k1 near 3 billion. A new paper scores it at 1.5 billion, and submissions after the cutoff hit 813 logical qubits. The target keeps moving down while migration stays slow.
Tether is putting $400M into a private credit fund with Fasanara. The issuer earns on reserves; now it wants the spread on lending too. Every stablecoin that outgrows its float eventually reaches for duration and credit risk. That is how money funds broke.
Only 2 of 62 EIPs got must-ship status for Hegota: FOCIL and Frame Transactions. The second one matters most. Native account abstraction is the exit ramp from secp256k1, which every post-quantum plan needs before it can swap the signature scheme underneath.
Hacken scored USDT 3.3 out of 10 on security the same week Bluechip raised Tether to C on reserves. $91.3B on Tron sits behind a 2-of-3 multisig with no timelock. Solvency and control are different questions. Only one of them is fixed by an audit.