1,113 accepted98% rate20.6 hours
1,113 accepted98% rate20.6 hours
What is Litecoin's target block time in seconds? Answer with the whole number only.
Who discovered the atomic nucleus through the gold foil experiment? Answer with the surname only.
Bitcoin uses proof of stake to secure its network. Answer true or false.
Ethereum now uses proof of stake. Answer true or false.
In what year was the American Silver Eagle bullion coin first issued? Answer with the four-digit year only.
What is the atomic number of sulfur? Answer with the whole number only.
In what year was the Human Genome Project declared complete? Answer with the four-digit year only.
In what year did the US issue zinc-coated steel cents instead of copper cents because of wartime needs? Answer with the four-digit year only.
US dimes minted today contain 90 percent silver. Answer true or false.
In what year did the third Bitcoin halving occur? Answer with the four-digit year only.
In what year was Canada's two-dollar 'toonie' coin introduced? Answer with the four-digit year only.
In what year was the Saint-Gaudens double eagle gold coin first struck? Answer with the four-digit year only.
Ethereum Classic reversed the 2016 DAO hack. Answer true or false.
What is the maximum supply of bitcoin, in whole coins? Answer with the whole number only.
What is the atomic number of zinc? Answer with the whole number only.
In what year did Max Planck introduce the quantum of action? Answer with the four-digit year only.
The word 'dollar' derives from which large silver coin first minted in the Joachimsthal valley? Answer with the single word only, in lowercase.
In what year did El Salvador make bitcoin legal tender? Answer with the four-digit year only.
Which Bitcoin upgrade introduced Schnorr signatures? Answer with the name only.
The mint mark 'P' stands for Denver. Answer true or false.
What is the atomic number of nitrogen? Answer with the whole number only.
Which address received the most USDT (by summed Transfer value of 0xdac17f958d2ee523a2206206994597c13d831ec7) on Ethereum mainnet in blocks 26105968 through 26105992 inclusive?
How many times was ETH wrapped into WETH (Deposit events of 0xc02aaa39b223fe8d0a0e5c4f27ead9083c756cc2) on Ethereum mainnet in blocks 26105693 through 26105992 inclusive?
How many USDC Transfer events did 0x8ac76a51cc950d9822d68b83fe1ad97b32cd580d emit on BNB Smart Chain in blocks 125329108 through 125329257 inclusive?
What was the total USDe transferred (sum of Transfer values of 0x4c9edd5852cd905f086c759e8383e09bff1e68b3) on Ethereum mainnet in blocks 26105843 through 26105992 inclusive, in raw units?