What is T+N (Security protection for buying crypto)? T+N refers to a security protection mechanism for cryptocurrency purchases. When you buy crypto through P2P on the platform, the system performs a comprehensive risk assessment of the transaction. Based on this assessment, it may temporarily restrict the withdrawal and P2P resale of the equivalent assets for N days.

Fees and processing times Payment method Currency Channel Deposit Fees Withdrawal Fees Processing Time Local bank Transfer USD Domestic wire transfer N/A $30 Up to 3 business days, depending on your sending/receiving bank Bank transfer (ACH) N/A N/A Deposits are instant. However, they may be on hold for a brief period of time before they can be withdrawn Withdrawals may take up 3 business days* Note: Business day refers to the local business day of the currency country.

Deposit locked due to P2P T+N risk control being triggered When you're buying crypto through P2P trading, our risk control system will comprehensively assess your transaction risks and impose N-day restrictions on the withdrawal and P2P sales of the equivalent amount of assets in your transaction. It's recommended that you wait patiently for N days and the system will automatically lift the restriction.2.

Sold: April 20, 2023 -500 USDT 0 April 21 (Fri) No new buy orders BTC/USDT Bought: April 6, 2023 Sold: Not yet sold ETC/USDT Bought: April 6, 2023 Sold: Not yet sold N/A N/A April 22 (Sat) ETC/USDT Bought: April 6, 2023 Sold: April 22, 2023 +500 USDT 50 USDT April 23 (Sun) BTC/USDT Bought: April 6, 2023 Sold: April 23, 2023 +100 USDT 10 USDT New settlement period starts April 24 (Mon) ETH/USDT Bought: April 24, 2023 Sold: April 24, 2023 +300 USDT 30 USDT April 25 (Tue) BTC/USDT Bought: April 24,

Low-degree polynomial extension: using the above polynomial constraints, we can obtain a computation trace polynomial of length uts * N. For security reasons, we perform commitment to the polynomial on a larger evaluation domain, with the domain amplification factor as extension_factor. In the above case, we could calculate a polynomial p(x) from I(x). When we use an extension_factor of 8, we will calculate another 32(8-1)* points on p(x).

Sold: April 20, 2023 -500 USDT 0 April 21 (Fri) No new buy orders BTC/USDT Bought: April 6, 2023 Sold: Not yet sold ETC/USDT Bought: April 6, 2023 Sold: Not yet sold N/A N/A April 22 (Sat) ETC/USDT Bought: April 6, 2023 Sold: April 22, 2023 +500 USDT 50 USDT April 23 (Sun) BTC/USDT Bought: April 6, 2023 Sold: April 23, 2023 +100 USDT 10 USDT New settlement period starts April 24 (Mon) ETH/USDT Bought: April 24, 2023 Sold: April 24, 2023 +300 USDT 30 USDT April 25 (Tue) BTC/USDT Bought: April 24,

Note: withdrawals of borrowed assets are subject to the account T+N restriction. In some cases, withdrawals may be temporarily unavailable. How does cross-platform arbitrage work? Assuming that OKX has a loan rate of 5% while another platform offers a 10% APR, feel free to borrow crypto from us to invest in other platforms.How can you borrow to trade?

For more details, you're welcome to visit GitHub - okx/threshold-lib: Threshold Signature Scheme, 2-of-n, for ECDSA and Ed25519.

(“OKX Brazil”) a company duly organized and existing under the laws of Brazil with its registered office at Avenida Brigadeiro Faria Lima, n. 4055, floor 4, room 113, Itaim Bibi, in the city and Estate of São Paulo, Zip Code 04538-133, Brazil, enrolled with the CNPJ/MF under nr. 50.459.025/0001-26 [and with a contact email address no-reply@okx.com]. OKX Australia and OKX Brazil are collectively referred to herein as “OKX.”

Calculation Example In the case below Net Delta = -5,000,000 + 10,000,000 = 5,000,000 Gross Delta = 5,000,000 + 10,000,000 = 15,000,000 Risk Unit Equity Delta Derivatives Delta Total Delta Funding account equity Trading account net equity Perp Delta Option Delta BTC 2,000,000 2,000,000 -10,000,000 1,000,000 -5,000,000 ETH 2,000,000 -2,000,000 10,000,000 N/A 10,000,000 Delta Limit & Borrow Limit Each Risk Unit will have predefined delta limits, covering both Net Delta and Gross Delta and a borrowing