Reference architecture · Web3

Settlement rails with deterministic tests

Contracts and an indexer with a full replay suite, so every state transition is reproducible before it ever reaches mainnet.

01Web3

The problem

Settlement contracts are unforgiving: a bug is permanent and public. The team wanted the test suite to be the deliverable, not the contracts.

02Web3

What we built

We wrote contracts alongside a deterministic replay harness covering every branch, plus fork tests against real mainnet state. The external audit returned zero critical findings.

03Web3

What it proved

The indexer keeps lag under one block, so downstream systems never reconcile against stale state.

What it is held to — illustrative figures

The numbers

Each figure is the measurement the system is held to. These are placeholders from the design comps until client-approved numbers replace them.

  1. Coverage

    Measured continuously; a regression here fails the build.

    Web3
  2. Audit findings

    Measured continuously; a regression here fails the build.

    Web3
  3. Indexer lag

    Measured continuously; a regression here fails the build.

    Web3

This reference architecture sits under our web3 capability. Its figures are illustrative until a client approves the real ones.

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Start here

Let's build
the impossible.

Tell us the system you can't get built. We come back with a short, paid discovery — a clear plan and a fixed first milestone — usually within two working days.

01

Discovery

A working session to map the problem and define what "good" is measured against.

02

The plan

Architecture, milestones and a fixed first deliverable — yours to keep, either way.

03

We build

Embedded with your team or as a dedicated pod, shipping with traces, evals and docs.

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