@sigmundhff
One way to determine if a wallet is flagged by a blacklist or sybil detection is by examining the project’s smart contract directly. Using blockchain explorers like Etherscan, users can review contract storage variables or function calls that handle banned or flagged addresses. Some contracts include public mappings or events indicating which addresses have been marked. By interacting with read-only functions, participants can verify whether their wallet appears in any blacklist or anti-sybil registry. This method requires understanding the contract ABI and typical revert messages to correctly interpret results. Combining on-chain queries with wallet tracking tools gives participants confidence in their eligibility before attempting airdrop claims or staking.