Quantum solvency · Exchange

Binance

Binance (proof-of-reserves wallet address set)

Scored from Binance proof-of-reserves wallet address file, audit PR01SEP26 (2026-09-01, block height 964,957), 54 of 54 published addresses read. The holder declared 640,617 BTC at its snapshot; the chain shows 650,244 BTC now. Binance publishes hot/cold wallets and customer deposit addresses separately; both are included where the network is BTC. Snapshot .

By exposure class

Practical risk

An attacker must recover each key separately. 18 exposed keys hold 10 BTC or more, 540,961 BTC in total; that is the part worth attacking first, and the part to sweep to fresh keys first.

Largest exposed keys

Disclosure freshness

Months old. Read from a publication dated 2026-09-01, 70 days ago.

Custody, as observed on-chain

Of the 636,101 BTC in the 54 addresses read, 83% is spent by a single key (indistinguishable from MPC on-chain), 0% through a multisig script, and 17% has never spent, so its control is not yet visible.

Read from 54 of 54 published addresses, holding 636,101 BTC, on 2026-09-30.

Repeated nonces

1,350 signatures from 35 keys across 35 addresses were checked and no nonce was repeated. For 14 busy addresses only the most recent transactions were read.

What it would take to move the exposed balance

8,854 unspent outputs in 23 transactions, about 0.0116 BTC in fees at the one-hour rate (about $968 at today’s price), using well under one percent of a day’s block space.

Each of the 8,854 unspent outputs is spent once into one fresh output of the same script family, in transactions of up to 400 inputs. Fee rates are mempool.space's recommendations at 2026-09-30T22:54:35.643Z. Signing ceremonies, custody procedures and withdrawal queues are not included and usually dominate.

Live badge for this reserve. It reads the latest snapshot and links back here.

<a href="https://latticescan.com/quantum-solvency/binance"><img src="https://latticescan.com/badge/solvency/binance" alt="quantum solvency"></a>