Super volley

PoolTogetheris an open source and decentralized protocol for no-loss prize games

PoolTogether is a prize savings protocol, enabling you to win by saving.1. Deposit USDC for a chance to win2. Participate in daily prize draws3. Withdraw your deposit any time - even if you don't win!

Optimism is an EVM equivalent Optimistic Rollup chain.

Optimistic Rollups take advantage of the consensus mechanism (like PoW or PoS) of their parent chain instead of providing their own. In Optimism's case this parent blockchain is Ethereum.

Zero-knowledge proofs are a class of cryptographic protocol that confirms knowledge without revealing excess data, with applications in cybersecurity, financial transactions and blockchain technology.

In cryptography, a zero-knowledge proof or zero-knowledge protocol is a met (the prover) can prove to another party (the verifier) that a given statement is true while the prover avoids conveying any additional information apart from the fact that the statement is indeed true.

Prefecture-level city in Shandong, China

It is a prefecture-level city under the jurisdiction of Shandong Province of the People's Republic of China. It is also a sub-provincial city, a city specifically designated in the state plan, and a regional central city in China. The urban agglomeration of the Shandong Peninsula and the central city of the Qingdao metropolitan circle