🎰Spinatoshi
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You
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common

Spin the 2²⁵⁶ keyspace

Real cryptography. Real blockchain checks. Statistically impossible odds.

secp256k1 // p2pkh● live
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private key · 256-bit0/8 locked
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⚠ never funded · demo only · do not import

Press SPIN to generate a real Bitcoin address.

Your stats

Spins
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Hit rate
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Rarest
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Live feed

Demo
  • ›cipher_kat found an uncommon pattern
  • ›0xglitch cleared a streak of 50 spins
  • ›byte_pirate hit a 'BTC' prefix — verifying…
  • ›lucky_nibble hit a 'BTC' prefix — verifying…
Spin a few times to populate your leaderboard.

How it works

01Generate

A 256-bit private key is generated in your browser using crypto.getRandomValues, then transformed into a public key via secp256k1 and hashed into a P2PKH address.

02Check

~1 in every 4 spins, the address is queried against the Blockstream public API to see if it has ever held funds. Other spins skip the API to be a polite citizen of the internet.

03Reality check

There are 2²⁵⁶ ≈ 10⁷⁷ possible keys — more than atoms in the observable universe. Even spinning a billion times per second for the age of the universe, you'd find nothing. That's the point.

No keys are stored or transmitted. Each generated key lives only in your browser memory for the duration of one spin and is discarded.