Search key, WIF, mnemonic across 18 chains CtrlK

Near-Max Nonce

k = n−1, n−2…

Bitcoin

Ethereum

BNB Chain

Arbitrum

Optimism

Base

Polygon

Avalanche

zkSync Era

Solana

Tron

TON

Sui

XRP

Litecoin

Bitcoin Cash

Dogecoin

Zcash

Enter a Bitcoin address or a 64-character transaction ID (TXID). Balance and stats load for every chain; the transaction graph loads where a keyless explorer is available.

Transactions to fetch: newest for the address (exactly this many are scanned; a single TXID fetches just that one transaction)

Balance 0 BTC

Received 0 BTC

TX 0

Instructions:\n1. Enter a Bitcoin TXID (64 hex) or an address.\n2. Every input\u2019s ECDSA signature (R, S, Z) is extracted and R-reuse pairs recover the private key.

Educational / read-only tool. Transaction data is fetched live from public block-explorer APIs (blockstream.info, with blockchain.info as a fallback). R-reuse recovery only succeeds on wallets that already leaked their key on-chain through a faulty signer — it demonstrates why ECDSA nonce reuse is catastrophic. Never enter keys for wallets you use.