Wallets and self-custody — courses for the whole family
Hold your own keys. Hold your own Bitcoin. Learn how wallets actually work, and how to keep yours safe for a lifetime.
What is wallets & self-custody?
A Bitcoin wallet is not a place where coins are stored. It is a piece of software that holds the cryptographic keys that prove you own those coins. The Bitcoin itself lives on the network, on every computer running the software. Your wallet is just the part of the system that knows the password.
There are two kinds of wallets. Custodial wallets — where someone else holds the keys for you, like an exchange — and self-custody wallets, where the keys live on your own device and only you can sign transactions. Self-custody is the only kind we use at BTCBitByBit, because the alternative defeats the point of Bitcoin.
The wallet you build with us combines on-chain Bitcoin (long-term storage), Lightning (instant cheap payments), and Liquid (fast, low-fee transactions) into a single balance you control with one seed phrase. You see one number. The wallet picks the right network automatically.
What you'll learn
- 1Tell instantly whether a wallet you're about to use is custodial or self-custody
- 2Back up a seed phrase the way professionals do — and verify the backup works
- 3Generate a fresh address for every transaction without thinking about it
- 4Decide when a hot wallet is enough — and when to upgrade to hardware
- 5Set up an inheritance plan your family can actually execute
- 6Recover a wallet from seed phrase on any device, on demand
- 7Avoid the four mistakes that cause most permanent Bitcoin losses
Why it matters
There is a saying that has held true for 15 years of Bitcoin history: "not your keys, not your coins". Every major collapse in the cryptocurrency space — Mt. Gox, Celsius, FTX — was a story about people who thought they owned Bitcoin but actually owned an IOU from a company that owned the Bitcoin. When the company failed, the IOU was worthless. Self-custody is the protection against that, and it is not optional if you want Bitcoin to do what it was designed to do.
Wallets and self-custody are also the topic where mistakes are permanent. A misplaced seed phrase, a phishing site that looked real, a hardware wallet bought from an unknown reseller — these are the stories of people who lost everything. The good news is that the rules to avoid every single one of those mistakes can be taught in an afternoon. We teach them.
Sample insight from our courses
“Your seed phrase is the only thing standing between you and losing every sat you own. Treat it that way.”Take the full wallets & self-custody course →
Earn Bitcoin while you learn
Every lesson ends with a quiz. Pass it, the sats land in your self-custody wallet automatically — your keys, your control. Subscribers also earn 50% sats-back on every payment, monthly. The only Bitcoin platform where the lessons pay you instead of the other way around.
How we teach wallets & self-custody
We start with the wallet you already have on this app. It is real, it is yours, and the seed phrase you back up today is the same one that protects your sats for life. By the time the lesson on backups ends, you have actually done the backup.
We use real screenshots and real workflows. Generic diagrams of "the cloud" and "the wallet" don't teach anyone anything. Showing what a real seed-phrase backup screen looks like — and what to do when you see one — does.
For the more advanced topics (multisig, hardware wallets, inheritance) we have separate lessons that build on the basics. You don't need them on day one, but they're there when your stack grows enough to need them.
Kids get the same content adapted for their level. A 10-year-old learns "your keys are like the password to your treasure chest, and if you lose it nobody can get it back". The principle is identical to what we teach adults — just in language that lands.
Who this is for
Newly self-custody
You're moving sats off an exchange for the first time. Start with the basics so you don't learn them the hard way.
The backup procrastinator
Your seed phrase is "somewhere in a drawer". Time to fix that before it costs you.
Long-term holder
Your stack has grown enough to be worth proper protection. Multisig and inheritance courses are next.
Frequently asked
What is self-custody, exactly?
Self-custody means you control the private keys that authorise spending your Bitcoin. No bank, no exchange, no company — including BTCBitByBit — can move your funds. The trade-off is that you are also the one responsible for keeping your seed phrase safe.
What happens if I lose my seed phrase?
Without your seed phrase, the Bitcoin in that wallet is unrecoverable. There is no "forgot password" flow because there is no central authority to ask. This is why we teach backup before anything else.
Is a hardware wallet necessary?
For most people starting out with small amounts, no. A well-protected seed phrase plus the BTCBitByBit app is enough. Once your stack grows past what you would be comfortable losing, a hardware wallet adds a meaningful security layer.
Can I share my wallet with my partner or kids?
You can share viewing access (watch-only wallets) without giving away spending power. For families managing kid wallets, the Family Corner feature lets parents oversee balances and approve transactions while kids hold their own keys.
What if my phone breaks or gets stolen?
As long as you have your seed phrase backed up somewhere safe, you can restore the wallet on any new device. The phone is just an interface. The keys are in the seed phrase.
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