Altair

Light Clients Three things need to be proved in order for clients to verify state: Consensus(validators selected a block), execution(the block transaction were applied correctly), and data availability(nodes are string the block data).

SPV Program Client-facing interface for the inter-chain SPV system, manages participant roles.

accounts_delta_hash It is part of the BankHash attested by the validator set.

Program ID

3Nqwtq952ZYVG7tq8HmixKZ6WXamn6AWd4o3dhyrPNaF

References

Light Clients

• SoK: Blockchain Light Clients

SPV

• https://github.com/Sovereign-Labs/solana-proofs/tree/master
• Inter-chain Transaction Verification

Geyser Plugins

• https://www.helius.dev/blog/solana-geyser-plugins-streaming-data-at-the-speed-of-light
• https://dev.to/valentinmadrid/a-guide-to-solana-geyser-plugins-452k

Space Reference

• https://www.anchor-lang.com/docs/space

Program Examples

• https://github.com/solana-developers/program-examples/tree/main

General

• https://a16zcrypto.com/posts/article/an-introduction-to-light-clients/
• https://a16zcrypto.com/posts/article/building-helios-ethereum-light-client/
• Simple Payment and State Verification
• solana-proofs
• https://www.youtube.com/watch?v=9m_M8zEw1cE&list=PLilwLeBwGuK7e_mH_sFwTytYQxalh7xd5&index=10