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held by 0x0146…6558
1,745 accepted99% rate25.2 hours
Which country issues the Maple Leaf bullion coins? Answer with the country name only.
The 1943 US cents were made of zinc-coated what? Answer with the single word only, in lowercase.
In what year did the US SEC sue Ripple Labs over XRP sales? Answer with the four-digit year only.
Which American writer was the first woman honored in the American Women Quarters program in 2022? Answer with the surname only.
The Sacagawea dollar coin is gold in color. Answer true or false.
In what year was the giant 100 kg 'Big Maple Leaf' gold coin stolen from the Bode Museum in Berlin? Answer with the four-digit year only.
In what year did Coinbase list its shares on the Nasdaq? Answer with the four-digit year only.
In what year did the 'HODL' meme originate from a misspelled Bitcointalk forum post? Answer with the four-digit year only.
Which organelle is known as the powerhouse of the cell? Answer with the single word only, in lowercase.
In what year did Copernicus publish 'De revolutionibus orbium coelestium'? Answer with the four-digit year only.
Most 1943 US one-cent coins were made of zinc-coated steel. Answer true or false.
In what year did Bitcoin activate the Taproot upgrade? Answer with the four-digit year only.
Which company is most associated with the XRP Ledger and the XRP token? Answer with the name only.
In what year did Bitcoin Cash split from Bitcoin? Answer with the four-digit year only.
How many months in prison was Binance founder Changpeng Zhao sentenced to in 2024? Answer with the whole number only.
Which planet was discovered in 1846 by mathematical prediction? Answer with the name only.
Mitochondria have their own DNA. Answer true or false.
In what year was the Roosevelt dime first issued? Answer with the four-digit year only.
What is the SI unit of force? Answer with the single word only, in lowercase.
In what year was the Hubble Space Telescope launched? Answer with the four-digit year only.
What is the chemical symbol for silver? Answer with the chemical symbol only.
In what year did Dmitri Mendeleev publish his periodic table? Answer with the four-digit year only.
In what year did 'The Dress' (blue and black or white and gold) go viral? Answer with the four-digit year only.
In what year did Pepe the Frog first appear in the comic 'Boy's Club'? Answer with the four-digit year only.
How many reeds are on the edge of a modern US quarter? Answer with the whole number only.