560 accepted99% rate9.4 hours
560 accepted99% rate9.4 hours
In what year did the Francis Scott Key Bridge collapse after being struck by a container ship? Answer with the four-digit year only.
How many chemical elements are in the periodic table as currently named and confirmed by IUPAC? Answer with the whole number only.
In what year did Finland join NATO? Answer with the four-digit year only.
Who won Argentina's 2023 presidential election? Answer with the surname only.
In what year was Germany reunified? Answer with the four-digit year only.
On Solana mainnet-beta, what is the parent slot of the block produced in slot 394572391? Answer with the whole number only.
On Ethereum mainnet, what is the nonce of transaction 0x3fb13ce41353a84ffdf77eada7dc9b33ea122e1f68bbbd87c2b8cf25e38dd860? Answer with the whole number only.
On Solana mainnet-beta, was slot 287264516 skipped, meaning no block was produced and confirmed in it? Answer true or false.
On Robinhood Chain (chain id 4663), which address sent transaction 0x451478cc3b95c0e33fb3bb9c4b4d2d568d33fededfbed5533bb691a8fc1ce1ff? Answer with the 0x address only.
On Ethereum mainnet, which address sent transaction 0x936b23593f291b7c5ef10c461f6f6e691a2a12422f228672a2fa564ea8e7a600? Answer with the 0x address only.
On Solana mainnet-beta, did transaction 2QrzAQjK2KzUWQ2Ud4PSRY5R2NwqJgLuyJRJzaEfDiYjLGB66VUHNHcJosbBskJAyGjtdkBWfzR9cQqFKdeZiBcg succeed? Answer true if it executed without error, false if it failed.
On Ethereum mainnet, is there contract code deployed at address 0x00000000219ab540356cbb839cbe05303d7705fa at the latest block? Answer true if eth_getCode returns non-empty bytecode, false otherwise.
On Solana mainnet-beta, how many decimals does the USDT SPL token mint Es9vMFrzaCERmJfrF4H2FYD4KCoNkY11McCe8BenwNYB use? Answer with the whole number only.
On Robinhood Chain (chain id 4663), what is the nonce of transaction 0x95bc757c74ab80da6f39a9e607246b1ad5948d169994ee527b78abaf21d059aa? Answer with the whole number only.
On Ethereum mainnet, what is the fee recipient (the miner/coinbase field) of block 25909707? Answer with the 0x address only.
On Robinhood Chain (chain id 4663), what does decimals() return on the token contract 0x0bd7d308f8e1639fab988df18a8011f41eacad73? Answer with the whole number only.
On Solana mainnet-beta, did transaction 5jx4RgL4Zb9gwmfp8k2FcpuZd2rD1FkekkcFmEC5Sh9oRTyFNeje8B4eoJkoygboZptLMxdeYkDFHnA4hEiXkxu6 succeed? Answer true if it executed without error, false if it failed.
On Ethereum mainnet, how many transactions are included in block 25495576? Count every transaction the block contains, as eth_getBlockByNumber returns them. Answer with the whole number only.
On Robinhood Chain (chain id 4663), which address sent transaction 0xde126093774de226243715de20fed99ea8050ac5cdb2887ee8bd8316b6ec38a5? Answer with the 0x address only.
On Ethereum mainnet, how many ERC-20 Transfer(address,address,uint256) events did the USDT token contract 0xdac17f958d2ee523a2206206994597c13d831ec7 emit in block 24893452? Answer with the whole number only.
On Ethereum mainnet, what is the nonce of transaction 0x9d4d9a50ab91b6a2aa37e73780843343ca0e87fd035e63670a48af09c2ec6038? Answer with the whole number only.
On Solana mainnet-beta, how many compute units did transaction 2Tiits3nH2NC7yS2pJRUXzvmEhpV4qxfCkaG8RgH8ugURTKtPr14YMXFyHpHgBxPsxsSsnbbL3p9zSgEr45Y45Uu consume? Answer with the whole number only.
On Robinhood Chain (chain id 4663), did transaction 0x5e247b7865d402d9ba503d072f591425b1f3186ba5726fef60d271780de4d64a succeed (receipt status 1)? Answer true if it succeeded, false if it reverted.
On Ethereum mainnet, how many transactions are included in block 15537394, the first proof-of-stake block after the Merge? Answer with the whole number only.
On Ethereum mainnet, what is the fee recipient (the miner/coinbase field) of block 24660732? Answer with the 0x address only.