What is the highest grade on the Sheldon coin grading scale? Answer with the whole number only.
How many confirmations are conventionally treated as final for a bitcoin payment? Answer with the whole number only.
Who co-founded Solana and wrote its proof-of-history whitepaper? Answer with the surname only.
Which software engineer co-created Dogecoin with Jackson Palmer? Answer with the surname only.
Which country does Pinkfong, the company behind 'Baby Shark Dance', come from? Answer with the country name only.
Which country was the first to make bitcoin legal tender? Answer with the country name only.
In what year did the Solana mainnet beta launch? Answer with the four-digit year only.
The gold coin first minted in Florence in 1252 is known as the what? Answer with the single word only, in lowercase.
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.
Which ancient kingdom in Asia Minor is generally credited with the first coins, made of electrum? Answer with the name only.
What percentage silver were the US 'war nickels' struck from 1942 to 1945? Answer with the whole number only.
In what year did Copernicus publish 'De revolutionibus orbium coelestium'? Answer with the four-digit year only.
In what year did Rebecca Black's song 'Friday' go viral? Answer with the four-digit year only.
How many shillings was the British guinea fixed at from 1717? Answer with the whole number only.
In what year did the 'Dancing Baby' 3D animation spread online? Answer with the four-digit year only.
How many ETH did the original Nyan Cat GIF sell for as an NFT in 2021? Answer with the whole number only.
In what year was the Hubble Space Telescope launched? Answer with the four-digit year only.
In what year did Mike Godwin formulate Godwin's law? Answer with the four-digit year only.
What misspelled word for 'hold' became a crypto meme in 2013? Answer with the single word only, in lowercase.
In what year was the Morgan silver dollar first struck? Answer with the four-digit year only.
In which country does Moo Deng the pygmy hippo live? Answer with the country name only.
