In what year was the Charter of the United Nations signed in San Francisco?

After Pectra (EIP-7251), what is the maximum effective balance of a compounding validator, in ETH?

In what year did the Fusaka (Fulu/Osaka) upgrade activate on Ethereum mainnet?

What is the address of the canonical Wrapped Ether (WETH9) contract on Ethereum mainnet?

In what year did Uniswap v1 launch on Ethereum mainnet?

How many seconds long is one slot on the Ethereum beacon chain?

What is the chain ID of the Sepolia Ethereum testnet?

What is the intrinsic gas cost of a plain ETH transfer transaction on Ethereum?

Is Ethereum Classic the continuation of the Ethereum chain that did not apply the DAO hard fork?

At what Ethereum mainnet block number did the London upgrade (EIP-1559) activate?

At what Ethereum mainnet block number did the Gray Glacier upgrade activate?

What is the ERC number of the multi-token standard?

What is the EIP number of the fee market change that introduced the base fee and burned it?

At what Ethereum mainnet block number did the Constantinople (with Petersburg) upgrade activate?

At what Ethereum mainnet block number did the Homestead upgrade activate?

In what year did the Ethereum mainnet (Frontier) launch?

In what year was the Ethereum crowdsale (the Ether genesis sale) held?

In what year was the Ethereum whitepaper by Vitalik Buterin first circulated?

In what year did the FBI shut down the original Silk Road marketplace?

What is the BIP number of the proposal that defines hierarchical deterministic (HD) wallets?

In what year did Segregated Witness (SegWit) activate on the Bitcoin mainnet?

What was Bitcoin's maximum block size in bytes before SegWit (the 1 MB limit)?

What is Bitcoin's maximum block weight in weight units since SegWit?

Every how many blocks does Bitcoin adjust its mining difficulty?

In what year did the price of one bitcoin first reach 1 US dollar?