Quantum solvency · Exchange
Bybit
Bybit (audited wallet list in the Hacken proof-of-reserves report)
Quantum solvency
0.0%
On-chain total
19,717 BTC
Exposed
19,717 BTC
Largest exposed key
5,400 BTC
Scored from Bybit proof-of-reserves audit report (Hacken), bybit.com (2026-05-27), 21 of 21 published addresses read. Bybit publishes its full address list only behind login; the public audit report on bybit.com lists the audited wallets. Bitcoin-format addresses only; balances are read from the chain. Snapshot .
By exposure class
| Reused / spent (key revealed) | 21 addresses | 19,717.48 BTC |
Practical risk
An attacker must recover each key separately. 15 exposed keys hold 10 BTC or more, 19,717 BTC in total; that is the part worth attacking first, and the part to sweep to fresh keys first.
| High concentration | 13 keys | 19,620.52 BTC |
| Material | 2 keys | 96.92 BTC |
| Moderate | 0 keys | 0 BTC |
| Small balance | 5 keys | 0.04 BTC |
| Not exposed | 1 key | 0 BTC |
Largest exposed keys
| Address | Type | Why exposed | Balance |
|---|---|---|---|
| bc1qr7dl0rtnfv…kzapwhe9 | P2WPKH | Spent from, key revealed | 5,400 BTC |
| bc1q0npwm7hphq…25edylgn | P2WPKH | Spent from, key revealed | 5,100 BTC |
| bc1qqc0h2sxt9l…457g28h2 | P2WPKH | Spent from, key revealed | 4,200 BTC |
| bc1q2qqqt87kh3…z5smh9rp | P2WPKH | Spent from, key revealed | 1,300.47 BTC |
| 139RYdfv7vNtbn…wvB4db9Y | P2PKH | Spent from, key revealed | 900.01 BTC |
| 14ug9BVtGnxY8e…BYXkpsdw | P2PKH | Spent from, key revealed | 600.01 BTC |
| bc1qknl6p2cmw3…2qndcerk | P2WPKH | Spent from, key revealed | 400 BTC |
| 1GrwDkr33gT6Lu…hsL5kmqC | P2PKH | Spent from, key revealed | 357.69 BTC |
| 1DLeNApsHNNzUM…dp8vzx3w | P2PKH | Spent from, key revealed | 341.92 BTC |
| 12rFmDggwCNrRL…TRPjDajP | P2PKH | Spent from, key revealed | 300.01 BTC |
| 1Ko6Sbu8VgZaQN…VN9wL7aX | P2PKH | Spent from, key revealed | 300.01 BTC |
| 1LrsskS2hmLvev…mJ7Gp83u | P2PKH | Spent from, key revealed | 300.01 BTC |
| 12XZMdaAGmcHf4…WH7RHUPs | P2PKH | Spent from, key revealed | 120.41 BTC |
| 1Nb9NUVWpjruza…EEL1hPrH | P2PKH | Spent from, key revealed | 63.84 BTC |
| 1P7o14PYsuiaj5…fsc4VgVf | P2PKH | Spent from, key revealed | 33.08 BTC |
| 1KHch51TT2eazx…PTjf8Mue | P2PKH | Spent from, key revealed | 0.01 BTC |
| bc1q7enk8z5gku…ptx0pty5 | P2WPKH | Spent from, key revealed | 0.01 BTC |
| bc1qpz86ltanq6…8fwckan7 | P2WPKH | Spent from, key revealed | 0.01 BTC |
| bc1qmv30sf5tnl…lzpm2zxw | P2WPKH | Spent from, key revealed | 0.01 BTC |
| 1HDnsptgeJ6fYF…uVcV51GL | P2PKH | Spent from, key revealed | 0 BTC |
| 16jVbMCcqq1deK…7kvqUsec | P2PKH | Spent from, key revealed | 0 BTC |
Disclosure freshness
Months old. Read from a publication dated 2026-05-27, 145 days ago. Addresses come from the audit report Bybit hosts, not from a live list; Bybit’s own address file is behind a login.
Custody, as observed on-chain
Of the 16,434 BTC in the 9 addresses read, 100% is spent by a single key (indistinguishable from MPC on-chain), 0% through a multisig script, and 0% has never spent, so its control is not yet visible.
| What spends it | Addresses | Balance |
|---|---|---|
| One key (or an MPC wallet, which looks the same on-chain) | 9 | 16,434 BTC |
Read from 9 of 21 published addresses, holding 16,434 BTC, on 2026-09-30.
Repeated nonces
96 signatures from 9 keys across 9 addresses were checked and no nonce was repeated. For 2 busy addresses only the most recent transactions were read.
What it would take to move the exposed balance
368 unspent outputs in 1 transaction, about 0.0006 BTC in fees at the one-hour rate (about $50 at today’s price), using well under one percent of a day’s block space.
Economy · 1 sat/vB
0.0006 BTC
about $50
Within an hour · 1 sat/vB
0.0006 BTC
about $50
Next block · 1 sat/vB
0.0006 BTC
about $50
Each of the 368 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 2026-09-30T21:51:33.081Z. Signing ceremonies, custody procedures and withdrawal queues are not included and usually dominate.
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Anchored in Bitcoin
The SHA-256 of this exact snapshot, fb8fb4895c5dae3883e37558…, was submitted to OpenTimestamps on ; the Bitcoin attestation completes within hours of the stamp and the proof upgrades on the next run. The index is timestamped on the chain it measures. The proof is included in the signed JSON.
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