Source: Bitcoin puzzle record, onchain · live

Your wallet is level 256. Safe until about 2058.

Highest level cleared: 135. 121 levels to go.

31y284d03:54:12left, at today's pace of key-breaking

A wallet key is 256-bit, so a wallet is level 256. Every smaller key that falls is a level cleared. That date is a trend, not a prediction: if AI, quantum computing or new math speeds key-breaking up, it moves toward today, and the bounties on BNB, ETH and SOL are where that shows first.

Already exposed? Get safe in a few checked steps. Nothing to connect to check.

The keyboard warrior celebrates beside a chained boss door with a padlock
LVL 135 cleared. LVL 256 waiting.

How the date is set

Every step is a key cracked for real on Bitcoin. Each dot links to the transaction.

64-bit128-bit192-bitLVL 256 · your wallet’s key135-bit cracked, today~2058 at today's pace~2042 at twice the pace
Biggest key cracked135-biton Bitcoin, Jul 28, 2026verify
Cracking grows by+3.8bits/yreach bit doubles the work · 6 cracks since 2020
Still to go121 bitsto reach your 256-bit wallet key
Next to crack140-bituncracked for 7.4 years, 14 BTC waitingverify

A trend, not a prediction. One breakthrough could pull the date in by decades, and that jump is exactly what the clock is built to catch. The full record

Bounties live on

One ladder. Three chains.

The same levels are posted on BNB Chain, Ethereum and Solana, each with its own escrow and its own record. A level that falls anywhere is a level cleared.

01 / 03 · Check

Is your wallet's key already public?

The clock only matters for keys that are public. An EVM key becomes public the first time it signs. A Solana address is its public key from the start. The scanner shows which of yours are, since when, and what they hold. It runs in your browser and never asks for a key.

Fig. 01 What one transaction gives away
  1. Before it sendshidden

    0xd8dA6BF26964aF9D7eEd9e03E53415D37aA96045

    Only the address is onchain: a fingerprint of the key. A fingerprint can't be worked backwards, so there is nothing to attack.

  2. After its first send, Oct 1, 2015public

    04e95ba0b752d75197a8bad8d2e6ed4b9eb60a1e8b08d257927d0df4f3ea6860992aac5e614a83f1ebe4019300373591268da38871df019f694f8e3190e493e711

    Every signature carries the full public key, readable by anyone, forever. From here, getting to the private key is a math problem. How hard that problem still is, is what the clock tracks.

vitalik.eth · key public for11.1 years
2015today

Most wallets that have ever sent are in the same spot. The only reset is moving to a fresh address.

02 / 03 · Get safe

Move before the date does.

A key that has never signed has never shown its public key. Moving to one is the fix, and there is no rush: the clock reads decades. Do it calmly, one checked step at a time.

Fig. 02 Two ways to get safe
MoveA wallet: move what it holds to a fresh address. EVM chains and Solana.Each transaction simulated first. Your wallet asks before sending. Stop any time.RotateA shared wallet (Safe or Squads): swap an exposed key for a fresh one.One swap. Same number of approvals needed throughout. Never a member fewer.

03 / 03 · Watch

Bounties that fall first.

The ladder posts the same kind of problem as a wallet key at smaller sizes, each with a prize in escrow on BNB, ETH and SOL. Anyone can claim one: a person, a GPU farm or an AI agent. When levels start falling faster than expected, the clock hears it before wallets do.

Fig. 03LVL256 ladder · last falltransaction

64-bitfell after 18 h on Ethereum, paid 25 tUSD

BNB 1/67
62
ETH 1/67
62
SOL 67
62
day 0day 60day 120day 180day 240day 300

Wallet-key math

The problem behind every BNB, ETH and SOL key, at smaller sizes.

27 levels per chain

Post-quantum math

The kind meant to replace wallet keys once quantum computers arrive.

26 levels per chain

Control

Pure guessing. If only these fall faster, it is more hardware, not a breakthrough.

14 levels per chain

Each tick is a bounty on the day it opens, one row per chain. When one is solved it lights up, linked to the transaction that paid it.

Hardware

LVL256 NEO

The fresh-key habit, in your pocket. A hardware wallet whose keys are made on the device and never leave it, in the LVL256 skin: a pixel-printed swivel cover over a graphite body. Turn it around.

Concept · not for sale

  • CoverPrinted anodized metal, swivels open
  • BodyGraphite anodized enclosure
  • ControlsTwo buttons and a display, under the cover
  • Size98 × 27 × 9 mm
Fig. 04 LVL256 NEO · 3D

The tech behind

A key never signs twice.

A

Single-use keys

Every send is signed by a key that has never signed before, and whatever is left moves to the next fresh key in the same transaction. On EVM chains a smart account (EIP-7702) does both in one step; on Solana, one transaction with two transfers. Funds never wait behind a public key. The screen counts it: exposed, 0.

B

A quantum-safe rescue key

Next to its everyday keys, the device makes a hash-based key. Its signatures rest on hashing, not elliptic curves, so the attack this site measures doesn't touch it. It is registered as the account's rescue route: if curve keys ever fall, the funds still move, with this key.

C

The clock, on the device

The NEO shows whether its own keys have ever signed, and how high the LVL256 ladder has climbed, read from the ladder's contracts. A wallet that tells you how safe it is, in the same numbers as this page.

Built in the order that can't fail

  1. 01 · Softwarenext

    NEO mode as a smart account on testnet: single-use keys and the rescue key, proven against copies of real chains. Works with the wallet you already own.

  2. 02 · Partner devicelater

    The same logic on an existing hardware wallet, in the LVL256 skin. No factory, no new chip, nothing new to trust.

  3. 03 · The NEOlater

    Our own device, the one above, built only once the first two have shipped and people use them.

The evidence

A real-money test, running since 2019.

In 2015 someone put bitcoin in wallets whose keys were made deliberately small, from easy to very hard. In 2019 they made 20 of those keys public, exactly like any wallet that has sent a transaction. Since then, whoever cracks one takes the bitcoin, and the blockchain shows the moment it happened. 15 are cracked. The bigger the key, the longer it held out. The 5 left still hold 75 BTC between them.

Key sizeHow long it survived once public

  1. 65–105-bit9 keys, all cracked within 114 days
  2. 110-bitcracked after 1.0 years
  3. 115-bitcracked after 1.0 years
  4. 120-bitcracked after 3.7 years
  5. 125-bitcracked after 4.1 years
  6. 130-bitcracked after 5.3 years
  7. 135-bitcracked after 7.2 years
  8. 140-bitnot cracked yet · 7.4 years and counting · 14 BTC waiting
  9. 145–160-bit4 bigger keys, not cracked · 62 BTC
  10. LVL 256Your wallet's key. The boss.260.5 times harder than the biggest one cracked. At today's pace, reached around 2058.

The Bitcoin puzzlereal keys and real bitcoin, separate from LVL256's own bounties

Biggest key cracked135-bitverify
It held out for7.2 yearscracked Jul 28, 2026
Next, 140-bit, uncracked for7y 140d23:48:38verify
Last crack83 daysago · the 135-bit keyverify

Your wallet's key is 256-bit. Every extra bit doubles the work, so today it is 260.5 times harder than the biggest key cracked so far. About this data. The AI result that started this: HAWK key recovery, July 2026.

Built so nobody has to be trusted.

A

Drawn from a future block

Each instance comes from the hash of a block chosen in advance, read through the chain's own history contract. Parameters are checked onchain before any money is locked.

B

Claimed without front-running

Solvers commit to a solution bound to their own address, then reveal it. Copying a commitment pays the original solver. Copying a reveal comes too late to win.

C

Paid by the contract

Prizes sit in escrow from the day a level is posted. The owner cannot withdraw them, change a level or pick an instance. Unsolved prizes return to the pool after a year.

Status

Plain about what is and isn't done.

Network
BNB testnet, Sepolia and Solana devnet. Prizes are test tokens with no value.
Audit
Not audited yet. An independent audit comes before mainnet.
Parameter review
Pending. Independent cryptographers review the spec before real prizes.
Costs
Estimated, not benchmarked. How they are made
Sources
Every claim cites a primary source. Read them