SOL - Solana

Proof of History (PoH)

• incorporating time into the blockchain to reduce the load while processing blocks

• Verifiable Delay Functions

  • need sequential computation to evaluate

  • events and transactions are hashed with the SHA256 hash function

  • takes the output of a transaction and uses it as input for the next hash

  • no parallel processing allowed, able to determine exact time required to complete the steps e.g. SHA256(”random string”) output: hash1 SHA256 (hash1) output: hash2 SHA256 (hash2) output: hash3

  • Advantages

    • having timestamp snapshot provides a clear verifiable sequence of transactions

    • speed up validation process by minimizing node communications on timestamp

• also involve Proof of Stake (PoS) mechanism

  • only people who staked can be validator to vote on validity of PoH hash, bad actor will be penalized

Solana Mobile - SAGA

• A flagship level Android phone targets Web 3.0 integration

• built in hardware wallet & Solana dApp Store

• simplfied dApp submission & distribution

• Solana Pay for Android