Guides
Self-custody without a single point of failure
A hardware wallet can generate a key badly. Build a self-custody setup that survives a vendor bug: verified backups, your own …
Education
Guides
How to check and revoke token approvals
A token approval lets a dapp spend your USDT or USDC later without asking again. Learn how unlimited allowances work, how to list …
Guides
How to plan gas so your stablecoins stay spendable
USDT can land in a wallet and still be unspendable. You need the chain’s own coin for fees. This guide shows how to keep …
Guides
How to pick the right network for USDT and USDC
USDT and USDC exist on many chains. Wrong-network sends are a top permanent-loss risk. Use this checklist to match asset, network, …
Guides
How to receive crypto safely into a self-custody wallet
Receiving is safer than sending, but the wrong network or a shared address still loses funds. This checklist shows how to …
Guides
How to read a block explorer and verify a transaction
A block explorer is the public receipt for every on-chain move. Learn how to look up a transaction ID, read confirmations, and …
News
El Salvador opens CUBO+ 2026 Bitcoin and Lightning bootcamp applications
El Salvador’s CUBO+ bootcamp has opened 2026 applications, training locals in Bitcoin and Lightning skills, with tracks for …
News
El Salvador runs a national Bitcoin node
El Salvador’s National Bitcoin Office is now running a full Bitcoin node, adding direct network participation to a strategy …
News
El Salvador opens fourth Bitcoin education zone in Apopa
El Salvador’s National Bitcoin Office opened the country’s fourth Zona Bitcoin inside the CUBO Valle Verde center in …