Interactive Labs
Hands-on . Everything here is simulated and educational — no real funds, no real keys, no real transactions ever leave your browser.
0 of 10 labs completed
- Lab
Simulated Wallet Lab
Send simulated "NodeScholar Coin" through a mempool and watch it confirm in a block. Build intuition for fees and confirmations.
To complete this lab, send NSC and watch the transaction confirm in a block.
- Lab
Hash Hunt
Race to find an input whose SHA-256 starts with N zeros — a hands-on feel for Proof-of-Work difficulty.
To complete this lab, find a valid hash at difficulty 2 or higher.
- Lab
Mnemonic Demo
See how a 12-word seed phrase is just an encoding of entropy. Generates simulated phrases only — never use for real funds.
To complete this lab, generate phrases at two different lengths.
- Lab
Gas-Fee Estimator
Slide transaction priority and watch estimated wait and cost change. Understand why "fast" costs more.
To complete this lab, move both sliders.
- Lab
DCA vs Lump-Sum Simulator
Start with a simulated $1000 and compare dollar-cost averaging vs a lump sum over a synthetic price chart.
To complete this lab, reroll the scenario and compare the results.
- Lab
Cross-chain Transfer Lab
Bridge simulated USDT from Ethereum to an L2 step-by-step — see the lock-and-mint pattern, the gas-token requirement, and the wrong-network failure mode.
To complete this lab, bridge to Arbitrum and reach step 5, Move on L2.
- Lab
Trace the Funds
Follow tainted coins through a mock blockchain. Apply chain-analysis heuristics at each hop, label the addresses, and find the off-ramp.
To complete this lab, resolve a case with the correct heuristic at 2 or more of its 3 hops.
- Lab
Multi-sig Vault Simulator
Configure an M-of-N treasury vault and collect signatures to spend. See how a missing signer blocks the tx — and how a compromised key is contained when M > 1.
To complete this lab, attempt one spend the vault authorizes and one it blocks.
- Lab
Cold Storage Walkthrough
A guided 7-step checklist for hardware-wallet cold storage: buying, initializing, verifying, and planning inheritance. No real funds.
To complete this lab, mark all 7 steps done.
- Lab
Crypto Tax-Event Calculator
A synthetic, jurisdiction-aware calculator: pick US/UK/DE/IN/JP and a scenario, and see which events trigger tax and the character of each.
To complete this lab, change the jurisdiction, load a scenario or add or remove an event.
How-Tos
Step-by-step guides that build on these labs, on the roadmap.
- How-To · On the roadmapPlanned
How to Verify a Receive Address
Check an address and its network before you send, so a typo or a swapped address can't take your funds.
- How-To · On the roadmapPlanned
How to Set Up a Hardware Wallet
Initialize the device, write down the seed phrase and test a small recovery before moving real funds.
- How-To · On the roadmapPlanned
How to Read a Transaction on a Block Explorer
Find a transaction by its ID and read its inputs, outputs, fee and confirmations.
- How-To · On the roadmapPlanned
How to Choose a Fee and Unstick a Transaction
Pick a fee for the speed you need, and use replace-by-fee or CPFP when a transaction stalls.
- How-To · On the roadmapPlanned
How to Move Tokens Between Chains Safely
Choose the right network, bridge or exchange route, and send a test amount first.
- How-To · On the roadmapPlanned
How to Set Up a 2-of-3 Multisig
Split control of shared funds across three keys, so losing one doesn't lose everything.
- How-To · On the roadmapPlanned
How to Keep Crypto Tax Records
Record the date, cost basis and value of every trade, swap and spend as it happens.