How Does Proof of History Work? Proof of History (PoH) is the secret sauce that keeps the blockchain world ticking. It’s like having a super-reliable clock that timestamps every single thing that happens in the blockchain universe. But how exactly does this fancy timekeeper work? Let’s break it down into simple terms: 1. Timekeeping Magic: Proof of History (PoH) operates by affixing a , The need for proof-of-history, explained In a distributed network like a blockchain, synchronizing a common timeline of transactions is a significant challenge. Most blockchains achieve this by , Proof of history targets a certain problem that blockchains have: the requirement to have a decentralized clock or some other way to ensure trustworthy timestamps. Solana uses proof of history for this, allowing the blockchain to enjoy proof that an event has occurred at a specific moment in time. This is possible because proof of history is a high-frequency Verifiable Delay Function (VDF). A , Discover the concept of Proof of History and how it contributes to the scalability, security, and validation of blockchain., Proof of History (PoH) is Solana's cryptographic clock, enabling fast, secure transaction ordering and high scalability for blockchains., Here’s how Proof of History works: The Solana data structure chains messages together. This provides a cryptographic proof of the relative order and time of each message in the historical record..