Postern Labs
MAINNET BETA. Unaudited · relaxed k=4 regime (trivially forgeable) · k=8 hardening reverted, re-activating progressively as hashrate grows — the gate climbs from k=4 toward k=8 · very few nodes, 51%-attackable · not a security · for evaluation — not to protect real secrets yet. Full disclaimer →

PosternDex · design preview — inert

A DEX on Bloch — designed, not live.

PosternDex is a Uniswap-v2-model AMM planned for the ownerless Bloch-SIS-PoW base — constant-product pools, permissionless liquidity, third-party liquidity providers earning swap fees. It is a design, not a running exchange. No pools exist, no swaps happen, and — most importantly — it will not be activated until the chain is secure enough to trade on.

⛔ Activation gate — read this. A DEX lets people trade value, and a chain that can be reorganised can have its trades rewritten and its liquidity double-spent. Bloch today runs the relaxed k=4 regime — trivially forgeable, low-hashrate, 51%-attackable, unaudited. Putting value on it now would be dishonest and unsafe.

PosternDex stays completely inert until Bloch's network hashrate crosses a published security threshold — high enough that a 51% reorg (which would let an attacker rewrite swaps and drain liquidity) is economically impractical — together with: the k=8 progressive ramp complete, checkpoint finality live, a third-party audit of the AMM and its L2, and legal review. The exact hashrate number is set and published at audit time, not guessed here. Until every one of those clears, this page is the whole product.

The model

Uniswap v2, on a post-quantum PoW base.

The design is deliberately unoriginal: reuse the battle-tested Uniswap v2 AMM (Factory / Pair / Router), not reinvent it. Pools hold two tokens and enforce x·y=k; a 0.30% swap fee accrues to the liquidity providers; anyone can create a pool or become an LP — that is the "third parties allocate liquidity and are remunerated as AMMs" part, and it is permissionless by construction.

The one thing Bloch lacks that Ethereum gives Uniswap for free is a place to run contracts — Bloch is pure PoW/UTXO with no EVM. So PosternDex runs on an EVM Layer-2 (designed separately) that anchors to Bloch as ordinary transactions and needs no consensus change; real Uniswap contracts then deploy unchanged. (An ownerless-native covenant path on Bloch L1 is the long-term alternative.)

Layer discipline: the pool primitive and the token standard are the ownerless base (anyone deploys, Postern holds no privilege); the PosternDex interface and the L2 sequencer are owned Postern products — they have operators. Same rule as everywhere: anything with a "who runs it?" answer is a product.

Scope of v1

No bridge. Native tokens only.

v1 needs no bridge — it trades tokens that are native to Bloch. That deliberately avoids the single most-exploited construct in crypto (asset-custody bridges have lost billions). A separate, later, optional bridge module — designed but gated behind the same security/audit/legal wall — could one day wrap outside assets (BTC/ETH/USDT); USDT would be inherently double-custodial (Tether + a federation) and labelled so. None of that is part of the DEX itself.

Honest limit: native tokens have no external value today (BLCH is worthless-by-design; most issued tokens are test/worthless). A working DEX is not a DEX with valuable assets until the chain matures.

Standing disclosures

What this is not.

  • Not a yield/investment product. LP fees are a variable cut of swap fees for providing liquidity — a service, not interest, not a promised return; impermanent loss is real. No leverage, no lending, no farming, no APY vaults — the constructs that turn a DEX into an unregistered security or a rug factory are deliberately not built.
  • Not a token sale. BLCH is not a security and not an asset — no sale, no listing, no price; Postern's revenue never touches the token, and any protocol fee (off by default) would be fiat-equivalent utility, never a buyback/burn.
  • Listing ≠ endorsement. Anyone can issue a token; most are worthless or malicious. A pool existing says nothing about a token's value or safety.
  • Unaudited, testnet, zero-value — and it will say so on every screen until the activation gate clears.

This is not investment advice and not legal advice. Postern Labs is in the process of legal incorporation; a DEX + fee-earning LPs touch securities and money-transmission law, and legal review is a hard gate.