Beginner Tutorials
BlokWiki Beginner Tutorials offer step-by-step guides to blockchain and cryptocurrency basics, wallets, exchanges and security — everything newcomers need to start safely. Page 3
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Best Crypto Exchanges in Vietnam 2026: Regulation & How to Choose
Vietnam has legalized crypto assets and launched a five-year trading pilot, but retail users still rely on international platforms…
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Gate.io Deposit Not Arriving? Troubleshooting & Wrong-Chain Recovery
A missing deposit usually stalls at the sender or on-chain, not at the exchange. This guide walks through a three-step diagnosis, …
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OKX KYC Failed? 6 Common Reasons and How to Fix Each One
Most OKX verification rejections come down to three fixable issues: photo quality, mismatched details, and a bad face-scan setup. …
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Binance Account Frozen or Restricted? Causes & Unfreeze Guide
Binance restrictions come in three tiers: a temporary withdrawal lock that clears itself in 24-48 hours, a risk-control restrictio…
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Binance Withdrawal Not Arriving or Suspended? How to Fix It
A missing withdrawal is in one of three places: not yet sent by Binance, unconfirmed on-chain, or arrived but uncredited. This gui…
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Wallet Approvals & Phishing: How to Revoke Risky Permissions and What to Do If You're Drained
Most on-chain theft isn't a hacked wallet — it's a signature you gave. This guide explains token approvals and how to revoke them,…
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Seed Phrase & Private Key Safety: How to Back Up and 7 Fatal Mistakes
Your seed phrase is your entire balance. This guide untangles seed phrases, private keys, and wallet passwords, gives a backup met…
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Crypto Wallets Explained: Hot vs Cold Storage and How to Choose (2026)
An exchange balance is not a wallet. This guide explains custodial accounts, hot wallets, and cold storage, gives a three-layer se…
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Binance vs OKX vs Gate.io: Security, Proof of Reserves & Licenses Compared
How do you actually judge exchange security? We compare Binance, OKX, and Gate.io on Proof of Reserves, incident history and reimb…
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Exchange Fees Compared: Binance vs OKX vs Gate.io (Spot, Futures, Withdrawals)
Base rates at Binance, OKX, and Gate.io look nearly identical — real costs can differ several-fold. This breakdown covers spot, fu…