Everything we teach,
organized by pillar.

A blockchain is a public notebook where every page is sealed by everyone, not the bank. Here's how that mental model holds up under pressure.

7 min·Beginner

Three words people use as if they mean the same thing. They do not. Once you see the difference, the rest of self-custody stops feeling like guesswork.

8 min·Beginner

Sending a transaction is not like sending an email. The differences are exactly the things that bite first-timers. We walk through every step, in a place where mistakes are free.

9 min·Beginner

Every blockchain is, by accident of its design, the most complete audit trail ever built. What that actually means, what it does not mean, and why allocators should care.

8 min·Intermediate

The chain is global. The rules are local. We give you a working map of how regulators think, without pretending to give you legal advice or a forecast that will be wrong by Tuesday.

9 min·Advanced

Self-custody is one sentence. The hard part is what the sentence implies. We pull that thread all the way down.

9 min·Beginner

A threat model is not a checklist of scary words. It is a ranked list of what is actually likely to take your coins. Once you have one, every security decision gets easier.

9 min·Beginner

The seed phrase is the master key to everything you own. Most people back it up wrong on day one and never revisit. Here is what surviving a real failure looks like.

9 min·Beginner

A hardware wallet is not magic. A software wallet is not unsafe. The real question is which threats each one actually addresses, and which ones it leaves open.

10 min·Beginner

Holding crypto on an exchange and holding crypto in your own wallet are not the same thing. They are not even adjacent. We separate them properly, so you can decide what belongs where.

8 min·Beginner

When you hold crypto for clients, partners, or beneficiaries, custody is not a personal preference. It is a fiduciary question with auditable answers. Here is the honest map of the options.

10 min·Advanced

Address poisoning is the modern version of changing the labels on filing cabinets. The attack costs nothing, scales infinitely, and works on careful people. Once you know the shape, it stops working.

8 min·Intermediate

Phishing is not a clever exploit. It is a conversation that ends with you handing over the keys. We break down the conversation so you can hear it coming.

9 min·Beginner

Most crypto scams are not new. They are old confidence tricks dressed in technical language. Here are the ones that catch smart people, why they work, and how to recognize them on the way in.

8 min·Beginner

A staggering fraction of all crypto ever held has already been lost forever, and most of it was lost the same way. Someone died, and nobody else knew enough to recover the keys. Here is why, and what to do before it is your turn.

9 min·Beginner

Shamir Secret Sharing is the most useful inheritance primitive in crypto, and almost nobody understands what it actually does. We explain it without a single equation.

9 min·Intermediate

A dead-man switch is a system that does something if you stop checking in. The concept is a hundred years older than crypto. The crypto version has new variations and new failure modes. Here is the honest design space.

9 min·Intermediate

A walk through one specific dead-man switch built for crypto inheritance, what it does at each stage, and the design choices that separate it from the amateur version most people first attempt.

9 min·Intermediate

The conversation about crypto with the person you live with is the highest-leverage thing you can do for your inheritance plan. It is also the conversation people put off for years. Here is how to have it well, and how much to tell.

8 min·Beginner

Traditional estate planning was not designed for assets that are controlled by a string of words. Bringing the two worlds together is doable, but the seams need to be done deliberately. Here is how the lawyer side of crypto inheritance actually fits.

9 min·Intermediate

Most people who say "NFT" mean a digital collectible. The category that actually matters is broader, and the term that fits it is DOT. We separate the two cleanly.

9 min·Beginner

On-chain royalties are not a new payment processor with a smart contract on top. They are a different relationship between creators and the platforms that distribute their work. Here is the actual mechanics, and where the design choices live.

9 min·Intermediate

Distribution is the part of the creative business where most of the leverage lives, and where almost all of the leverage has belonged to platforms. Self-sovereign distribution is the alternative architecture. Here is what it actually looks like, end to end.

9 min·Intermediate

Every creator on a major platform is one policy change away from losing significant work. We rank the actual risks, from the obvious to the underappreciated, and lay out the defensive moves that work.

8 min·Beginner

A wallet started as a place to keep crypto. It is becoming the place to keep ownership of almost anything that can be tokenized. Here is what that shift means, and why it matters even if you only own crypto today.

8 min·Intermediate

If you are issuing a token (for a project, a creative work, a real-world asset, or anything else) three decisions matter more than every other decision combined. We name them, separate them, and walk through the trade-offs.

9 min·Advanced

"RWA" gets stretched to cover almost anything. The category that actually matters is narrower, more demanding, and more interesting than the marketing version. We define it carefully.

9 min·Intermediate

Two specific case studies in tokenized ownership. A tiered investment structure in a working company, and the tokenization of a real piece of physical infrastructure. Both illustrate the DOT framework in different applications.

10 min·Intermediate

Most due-diligence checklists for tokenized assets are either useless (one-page boilerplate) or unusable (eighty pages of legal jargon). This is the working version, the questions that actually separate serious projects from the rest.

10 min·Advanced

A decentralized exchange is not "a website where you trade crypto." It is a smart contract that sits between you and other liquidity providers, with no order book and no human in the middle. We unpack the difference.

7 min·Beginner

Prompt injection is the SQL injection of the AI era. The attack is not on the model. The attack is on the trust you placed in the model. We unpack the shape so you can spot it before it costs you.

9 min·Intermediate

AI did not invent fraud. It made the old scams cheaper, faster, and far more convincing. Here is what actually changed, and what did not.

8 min·Beginner

A thirty-second clip of someone speaking is now enough to fake their voice. Here is how the fakes work, where they fail, and the one defense that does not depend on your ears.

9 min·Beginner

The fastest way to lose self-custodied funds today is to ask for help in public and trust whoever answers. Here is how the fake-support trap works and how to stay out of it.

8 min·Beginner

When anyone can generate a convincing article, screenshot, or video in seconds, the skill that protects you is verification. Here is a practical method you can run in under a minute.

9 min·Intermediate

AI tools are genuinely useful, and they leak data in ways most people never notice. Here is how to get the upside without handing your work, your clients, or your keys to a third party.

10 min·Intermediate

Tokenization is not a buzzword or a coin. It is a way to represent ownership of a real thing on a shared ledger. Here is what it actually means for a business, in plain terms.

9 min·Beginner

A smart contract is code that holds and moves real money, runs exactly as written, and usually cannot be undone. Here are the risks that actually matter, without needing to read the code.

9 min·Intermediate

Most business losses in crypto are not clever hacks. They are one employee, one key, one approval, with no policy behind them. Here is how to bring a team on safely.

10 min·Intermediate

Most users sign contracts they have never read. The wallet shows hex. The site shows a button. The cost of "approve" is mostly invisible until it is not. Here is how to read what you are about to authorize.

10 min·Advanced