Bitcoin
Confirmations and finality: when is a transaction actually done?
Some chains give you certainty in seconds, others give you steadily improving odds. Knowing which kind you are using decides how long you should wait before treating a payment as settled.
How to use a block explorer like an analyst
A block explorer turns a public ledger into something you can actually read. Once you know which five fields matter, most on-chain questions answer themselves in under a minute.
Planning crypto inheritance without handing over the keys
Self-custody means no bank will help your family recover anything. A workable plan tells them what exists and how to reach it — without creating a copy of your keys that anyone can use today.
Metal seed backups: paper survives daily life, not disasters
A seed phrase on paper is one flood, fire or faded biro away from unrecoverable. Stamping it into metal costs less than most hardware wallets and removes an entire category of loss.
The 25th word: how wallet passphrases work
A passphrase turns one seed phrase into an unlimited number of separate wallets, and gives you a plausible answer to someone demanding your keys. It also has no recovery path whatsoever.
Multisig wallets: what they solve, and what they cost you
A multisig wallet requires several keys to approve a transaction, which removes the single point of failure at the heart of ordinary self-custody. It also introduces complexity that has lost people their funds.
How to verify a crypto address before you hit send
Address poisoning, clipboard malware and lookalike characters all exploit the same habit: copying an address without checking it. Here is a verification routine that takes seconds and survives all three.
How to Buy Bitcoin Safely (Step by Step)
A plain-English walkthrough of buying your first Bitcoin: choosing a platform, placing an order, keeping fees low, and moving coins to a wallet you control.
Hot vs Cold Wallets: Which Should You Use?
Hot wallets are connected to the internet for everyday use; cold wallets stay offline for long-term safety. Here is how to decide which fits your holdings.
Proof of Work vs Proof of Stake Explained
Proof of work uses energy and mining; proof of stake uses locked-up coins. Here is how each secures a blockchain and the trade-offs between them.
Dollar-Cost Averaging Into Crypto
Dollar-cost averaging means buying a fixed amount on a schedule, smoothing out volatility. Here is how it works, its pros and cons, and how to set it up.
What is a Bitcoin ETF and how does it work?
A plain-English guide to spot Bitcoin ETFs — what they are, how they track the price, and the trade-offs versus holding bitcoin directly.
How on-chain analysis works
An introduction to reading blockchain data directly — the metrics that matter, what they reveal, and their limits.