Blockchain & Digital Assets

Blockchain, stablecoins, smart contracts and self-custody explained plainly — with a clear view of the risks and scams, and no investment advice.

8 articles

A blockchain records a transaction when many computers verify it, pack it into a block and chain that block to the last one with a hash.

A seed phrase is the master backup of your wallet: whoever holds the words controls the assets, so keep it offline and never type it online.

Stablecoins hold their peg through issuer reserves, over-collateralised crypto or algorithms, and each design can fail differently.

A smart contract is code on a blockchain that runs exactly as written; it automates rules but cannot see the outside world or undo its own bugs.

Crypto scams leave technical signs: unclear signature requests, look-alike addresses, unofficial wallet apps, surprise tokens and withdrawal fees.

Blockchain helps traceability when several distrustful parties share one record; otherwise a good database with audit logs is cheaper and faster.

Self-custody means splitting assets into a small hot wallet and an offline cold wallet, backing up the phrase offline and planning for family access.

Map the risks first: volatility, platform failure, code exploits, depegs, your own mistakes, scams and an unsettled legal picture in Vietnam.

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