PRACTICE LABS

Build the proof.

Independent Blockchain Lab preparation. Synthetic data. Not an employer test, and not a guarantee of selection. No wallet, seed phrase, or deposit.

• Controlled asset registry

  A local registry with roles, a pause, and tests. Synthetic assets only.

• Event indexer with reconciliation

  Ingest events, retry safely, drop duplicates, and reconcile against a second source.

• State-machine simulator

  A small state machine with an honest path and one adversarial case.

• Security review of a local demo

  Review a local demo, write the threat model, and document one mitigation.

• Policy-controlled wallet

  A simulated wallet with an approval limit and a person who can stop a payment.

• Supplier settlement simulator

  A mock payment with a timeout, a retry, and a reconciliation line.

• Pilot brief

  A short brief: user, asset, dependency, and what the pilot does not prove.

• Integration example

  Document one working integration with a runnable example and a printed failure.