Generate a pack of 30 new and different crypto-themed emojis, using the vibrant, high-contrast, neon-glow style from the provided reference image. The new set should feature fresh concepts not seen in the previous pack, such as a private key, a mining pickaxe, a smart contract (represented by a brain), an NFT ape, an Ethereum gas pump, laser eyes, a digital wallet, a blockchain, a halving event, staking, an airdrop, and a coin burn. Arrange them in the same 6x5 grid layout on a dark background.
