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Tradeback voucher FAQ
If you activate a new voucher, your currently activated voucher will be de-activated. De-activated vouchers can no longer be used. Select the Activate button to activate your voucherHow do I check which trades are eligible? In each tradeback voucher, click on the Information icon (i) to check the voucher details. In the Voucher details section, we display the eligible trading products and base currencies.Published on May 8, 2026Updated on May 29, 2026Outcomes User Guide
This product is not affiliated with, and has not been authorized, approved, endorsed, or sponsored by, the Fédération Internationale de Football Association ("FIFA"), the World Cup Organizing Committee, or any of their official sponsors, partners, or licensees. Any references to the "World Cup" or other event-related terms in connection with this promotion are used for descriptive purposes only and do not imply any form of commercial cooperation or association with FIFA or any official body.Published on Jun 2, 2026Updated on Jun 19, 20264Zero-Knowledge Proofs: what are zk-STARKs and how do they work? (zk-STARK V1)
of their net value in the total value To test and verify the above claims, we need to build constraints such as: Claim 1: Total Balance Constraint (Constraint of a correct total balance) uts: user trace size, which is the number of rows of traces included in each user's data. sum: total user balance N: number of users Claim 2: Non-negative Constraint (Constraint of positive net equity) Claim 3: Inclusion Constraint (Constraint of inclusion of all customer account balance) According to above constraintsPublished on May 10, 2023Updated on Sep 8, 2025183Outcomes FAQ
This product is not affiliated with, and has not been authorized, approved, endorsed, or sponsored by, the Fédération Internationale de Football Association ("FIFA"), the World Cup Organizing Committee, or any of their official sponsors, partners, or licensees. Any references to the "World Cup" or other event-related terms in connection with this promotion are used for descriptive purposes only and do not imply any form of commercial cooperation or association with FIFA or any official body.Published on May 20, 2026Updated on Jun 19, 20261,982Zero-Knowledge Proofs: what are zk-STARKs and how do they work? (zk-Stark V2)
In our case, we placed the tool and the data file in the Downloads folder, named "proof-of-reserves," as shown below: Open the zk-STARKValidator; it'll automatically run the JSON file you saved in the folder Check the result: If the verification passes, the result Inclusion constraint validation passed will be shown: If the verification fails, the result Inclusion constraint validation failed will be shown: How do I verify the zk-STARK total balance and non-negative constraint?Published on Oct 21, 2024Updated on Feb 11, 202695ALL-IN Campaign terms and conditions
Full details of the prize, including travel and accommodation inclusions, will be provided to the winner. The winner will be selected from eligible participants after the Campaign Period and notified via the email address associated with their OKX account.Published on Aug 18, 2025Updated on May 29, 20261
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