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MEXC Exchange/Learn/Sarah Chen
Sarah Chen

Sarah Chen

Nationality: Australia Bio: Sarah Chen specializes in DeFi protocols, smart contracts, and Layer-2 solutions. Based in Melbourne, she brings technical expertise and clear communication to complex blockchain topics. She holds a Bachelor's degree in Computer Science from the University of Melbourne and worked as a blockchain developer for three years before transitioning to technical writing. Her hands-on experience with Ethereum, Solana, and other platforms allows her to explain intricate concepts in accessible language. Since joining MEXC Learn in 2022, Sarah has focused on making blockchain technology understandable for all users, covering topics from DeFi yield farming to zero-knowledge proofs. Areas of Expertise: - DeFi Protocols - Smart Contract Analysis - Layer-2 Solutions - Blockchain Infrastructure - Protocol Security

Recent Articles

Kraken Fees Explained (2026): The 9 July 2026 Tier Change That Doubled Kraken Entry Taker Rate to 0.80%

Kraken Fees Explained (2026): The 9 July 2026 Tier Change That Doubled Kraken Entry Taker Rate to 0.80%

Kraken charges 1% plus a spread on Instant Buy, 1.5% on custom orders, 0.40% maker and 0.80% taker at Tier 1 on Kraken Pro spot, 0.02% maker and 0.05% taker on futures, and a fixed per-asset fee on

2026-09-10

Kraken KYC Explained (2026): Why Do Guides Still List Four Tiers When Kraken Page Now Shows Two Paths?

Kraken KYC Explained (2026): Why Do Guides Still List Four Tiers When Kraken Page Now Shows Two Paths?

Kraken requires identity verification before you can deposit, trade or withdraw, and a verified personal account needs a government-issued ID plus a proof of address dated within three months, with

2026-09-10

OKX Fees Explained (2026): Which of OKX Three Fee Schedules Is Your Account Secretly On?

OKX Fees Explained (2026): Which of OKX Three Fee Schedules Is Your Account Secretly On?

OKX charges Regular-tier accounts on its global schedule 0.08% maker and 0.10% taker on spot and 0.02% maker and 0.05% taker on futures, while EEA accounts without a derivatives account and all US

2026-09-10

Crypto.com Fees Explained 2026: Why Does the Same $1,000 Buy Cost $8.00 in the App and $5.00 on the Exchange?

Crypto.com Fees Explained 2026: Why Does the Same $1,000 Buy Cost $8.00 in the App and $5.00 on the Exchange?

Crypto.com runs two separate price lists. The App charges 0.80% on a cash-to-crypto purchase and up to 4% on a card buy. The Exchange charges 0.250% maker and 0.500% taker at its entry tier. Same

2026-09-10

Crypto.com Identity Verification 2026: Why Does Approval Take Up to 3 Business Days and Unlock Limits Nobody Publishes?

Crypto.com Identity Verification 2026: Why Does Approval Take Up to 3 Business Days and Unlock Limits Nobody Publishes?

Crypto.com identity verification needs your full legal name, a government-issued ID and a selfie, submitted only through the Crypto.com App. Review normally takes a few hours to a couple of business

2026-09-10

Crypto.com Withdrawal Limit and Times 2026: 2 Hours to Move Crypto, 24 Hours to Add an Address

Crypto.com Withdrawal Limit and Times 2026: 2 Hours to Move Crypto, 24 Hours to Add an Address

Crypto.com caps App crypto withdrawals at the equivalent of 10 BTC per rolling 24 hours, and Exchange USD withdrawals at $100,000 per rolling 24 hours for retail clients. Crypto withdrawals are

2026-09-10

Bitget Fees Explained (2026): Why Does a Maker Pay the Same 0.10% as a Taker Until VIP 2?

Bitget Fees Explained (2026): Why Does a Maker Pay the Same 0.10% as a Taker Until VIP 2?

Bitget charges 0.10% maker and 0.10% taker on spot at VIP 0, 0.08% when fees are paid in BGB, and 0.020% maker and 0.060% taker on USDT-M perpetuals, verified against Bitget's fee page on 9 September

2026-09-10

Bitget KYC Requirements (2026): One Level, Up to 60 Minutes, and a 3M USDT Daily Limit

Bitget KYC Requirements (2026): One Level, Up to 60 Minutes, and a 3M USDT Daily Limit

Bitget requires Level 1 identity verification, a government ID plus a facial check, before an account can deposit, trade or withdraw, a rule phased in between 1 September 2023 and 20 July 2024. Level

2026-09-10

Bitget Withdrawal Limit Explained: 3M USDT a Day at VIP 0, 20M at VIP 7, and Nothing Without KYC

Bitget Withdrawal Limit Explained: 3M USDT a Day at VIP 0, 20M at VIP 7, and Nothing Without KYC

Bitget's 24-hour withdrawal limit runs from 3M USDT at VIP 0 to 20M USDT at VIP 7, counted across all coins at their USDT value, and an account without Level 1 verification has not been able to

2026-09-10

Kraken Withdrawal Times and Limits (2026): 20 Minutes of Checks, So Why Do Some Withdrawals Wait 72 Hours?

Kraken Withdrawal Times and Limits (2026): 20 Minutes of Checks, So Why Do Some Withdrawals Wait 72 Hours?

Kraken's internal checks on a crypto withdrawal take up to 20 minutes across two stages before the transaction reaches the network, while cash withdrawals range from near-instant to five business

2026-09-10

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