Bunker
DiscoverOriginThe stampPump.fun
Launch a coin

Post-quantumlaunchpadon Solana

Launch a coin on Solana and seal its origin with a single-use hash stamp. Anyone can check that stamp with SHA-256 after elliptic-curve signatures can be forged.

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01 SPENTB02 ARMEDTHIS LAUNCHBNKRstamp burned

Origin

A Solana wallet can be forged. A hash stamp cannot be reused.

A normal launch

The creator is an ed25519 key.

On Solana the account address is the public key. Pump.fun records that key as the signer. When a quantum computer can forge ed25519, that record no longer says who launched the coin.

Bunker

The launch is a one-time stamp.

The wallet grows 256 Winternitz stamps in the browser. One stamp signs the coin, then it is spent. The signature is pinned into the coin metadata. SHA-256 is what a verifier checks, and the secret stays on this device.

The stamp

Three moves, then the coin exists.

  1. A closed case holding twelve gold pieces and a ring.

    01 — The wallet signs once.

    That signature is the seed. The browser builds a Merkle tree of 256 stamps. An optional passphrase is mixed in, and it never leaves this device. The chain never sees the seed.

  2. A gold bunker seal with a flame melting its rim.

    02 — One stamp signs the coin.

    The stamp covers the name, ticker, image, description, links, and mint address. Using it twice would leak the key, so this browser will not sign a second message with the same stamp.

  3. A cracked gold ring pointing to a polished new ring.

    03 — Pump.fun creates the mint.

    The create transaction is the normal Pump.fun instruction. The stamp rides in the metadata. Creator fees accrue to the wallet that launched.

Pump.fun

The coin trades on the curve. The origin is a hash.

Bunker calls Pump.fun’s create instruction. Solana still accepts the launch because the wallet signed it. The hash stamp is the record of who authorized that launch, checked in the browser with SHA-256, a Merkle tree of height 8, and 67 Winternitz chains.

Three bunker seals: cracked, burning, and polished.
  • SHA-256Winternitz, w = 16, packed into 256 leaves. Forgery means a second preimage.
  • Secrets stay hereThe seed and the stamp secrets are built in the tab. Metadata gets the public stamp.
  • MainnetThe coin is created on Solana mainnet. The stamp is published with it.

Mainnet

Launch one coin. Check the stamp.

Connect a Solana wallet, sign the coin with one stamp, and send it to mainnet.

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