SIMD-0340: Validate chained block id

SIMD-0340 (Validate chained block id) is a Core Standard Solana Improvement Document by Charles Li; proposal status Activated.

Active on mainnet-beta since epoch 992; active on testnet since epoch 977; active on devnet since epoch 1091.

Feature gates

• Feature gate: SIMD-0340: Validate chained block ID
• Feature gate: SIMD-340: Encompassing check for validate chained block ID

Vortex

• Consensus leaderboard
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