What is the difference between Processed, Confirmed, and Finalized on Solana?

'Processed' means the current slot leader has executed the block. 'Confirmed' means supermajority (66%+) validator stake has voted on the transaction. 'Finalized' (achieved in ~32 confirmed blocks, roughly 12-15 seconds) means the block has achieved 31+ confirmed descendants and cannot be rolled back.

High-Throughput L1 Hub

Solana Cluster Intelligence & Tools

High-frequency priority fee estimation, compute units breakdown, signature status confirmation, and non-custodial account state lookup.

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Solana

Solana Transaction Checker

Inspect Solana transaction signatures for block inclusion, confirmation status, and compute units.

Check Confirmations

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Solana

Solana Address Lookup

View live SOL balance, executable program status, and account rent requirements.

Solana Transaction Fee Estimator

Live base fee and prioritization micro-lamport rates across recent Solana slots.

Estimate Mempool Fees

Solana Frequently Asked Questions

Solana charges a deterministic base fee of 5,000 lamports (0.000005 SOL) per signature. In addition, users can attach an optional priority fee denominated in micro-lamports per Compute Unit (CU) to prioritize transaction execution during heavy network congestion.