Unit 4 · Level 2 · Tools of the trade
The tool landscape
On-chain tooling stacks into four rough layers. Block explorers show raw truth: one transaction, one address at a time. Dashboards aggregate that into charts and labeled entities. Aggregators and screeners rank whole markets by activity. Alert systems flip the model: instead of you looking, events come to you. No single brand matters here; every layer has many interchangeable tools. What matters is knowing which layer answers which question.
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What you get asked
You need to verify exactly what one specific transaction did. Which layer of tool?
Explorers are the ground floor: every input, output, timestamp and fee, unfiltered. When precision matters, go to the raw layer.
Match each tool layer to the question it answers best
Raw truth, aggregated context, market-wide ranking, and push notification: four layers, four different questions.
Why should conclusions from a dashboard occasionally be spot-checked against a block explorer?
Every aggregation layer adds interpretation: labels, clustering, smoothing. The explorer is the audit trail; when a dashboard claim surprises you, verify it downstairs.
Screeners rank tokens by activity, which is exactly why ___ traders target them with fake volume to climb the rankings.
Unit 3's lesson applies to tooling: any layer that ranks by a metric invites manipulation of that metric. Trending lists are hunting grounds.
What's the smartest attitude towards on-chain tool brands?
Tools die, rebrand and change pricing constantly; the four-layer mental model outlives them all. Skills transfer; subscriptions don't. 🐜
The rest of this unit
Explorers, watchlists, alerts and a daily loop: build your own on-chain radar.