What you can learn inside BTC Mate
- How a transaction travels. From your wallet signing it, through the mempool, into a block, to the confirmations that make it final. The explanation sits on the Network page, next to the current mempool figures.
- What the mempool is and why fees rise when it fills up. Shown together with the number of waiting transactions and the recommended fee levels in sat/vB.
- Halvings and supply. Why new Bitcoin issuance halves roughly every four years, which halving epoch we are in, how much of the 21 million cap has already been issued and what that means for scarcity.
- Nodes and the network. What a node does, why reachable-node counts are a lower bound, and how the network is distributed around the world, illustrated on the interactive network map.
- Market vocabulary. What sats are, what BTC dominance measures, what the Fear and Greed index does and does not tell you, and how far the price is from the all-time high.
- A glossary of the terms you meet in the explorer and on the network page.
The concepts in brief
Self-custody
Holding Bitcoin yourself means holding the private keys, usually as a seed phrase written down offline and often protected by a hardware wallet. No exchange or company can freeze or lose those coins; in return, nobody can recover them for you. BTC Mate exists for this setup: it shows how self-custodied Bitcoin is doing without ever touching the keys. Public address vs. private key vs. seed phrase.
Addresses and the blockchain
The blockchain is a public ledger of every transaction. An address is where coins are recorded as sitting; anyone can look one up and see its balance and history, which is what makes address tracking possible. What the ledger does not contain is who owns an address or what they paid, which is why performance figures are estimates.
Transactions and confirmations
A transaction spends previous outputs and creates new ones. Until it is included in a block it waits in the mempool with zero confirmations. Each block mined on top adds one confirmation; six is the common threshold for treating a payment as final.
Mining, hashrate and difficulty
Miners compete to find the next block by computing hashes. Hashrate is their combined computing power; difficulty adjusts every 2,016 blocks so a block keeps arriving about every ten minutes regardless of how much hardware joins.
Nodes
Nodes verify transactions and blocks against the rules and relay them. They are what makes the ledger trustworthy without a central party. Most nodes do not mine.
Halvings and the 21 million cap
Every 210,000 blocks the reward for mining a block halves. This schedule caps total supply at 21 million BTC and is the reason Bitcoin's issuance is predictable years in advance.
Why learning and tools belong together
Most people first meet these concepts as abstract definitions. In BTC Mate you meet them where they apply: the mempool explanation next to today's mempool, the halving explanation next to the current epoch, the node explanation on a map of actual nodes, the estimate explanation next to your own estimated profit or loss. The aim is that when you look at a number in the app, you know what produced it and how much to trust it.