Question 1

What is SOL, and what role does it play in the Solana network?

Accepted Answer

SOL is Solana’s native token: it pays on-chain transaction fees and can be placed in a stake account and delegated to a validator to participate in the network’s stake-based security and reward distribution. It is not an SPL token independently issued by a project on Solana. Solana stores balances and state in accounts, and on-chain programs read or modify those accounts according to transaction instructions. A user must sign a submitted transaction, and its designated fee-payer account pays the network fee. SOL therefore connects the cost of using the network with validator incentives, while holding SOL alone does not mean operating a validator.

Question 2

How does Solana use SOL staking to secure the network?

Accepted Answer

Solana is maintained by validators. Under the leader schedule, validators act as leaders in individual slots, produce ledger entries, and vote on the ledger state they validate; the more stake delegated to a validator, the more likely it is to be selected to write to the ledger. PoH (Proof of History) is not proof-of-work mining with SOL. It is a set of verifiable proofs of time ordering: it proves the order in which data appeared and the time elapsed between two proofs. This helps validators coordinate votes more efficiently. When nodes representing roughly two-thirds of stake weight share a common root, Solana treats that state as finalized. Delegators do not need to surrender private keys or produce blocks themselves, but their effective stake counts toward the stake weight of their chosen validator.

Question 3

How are transaction fees calculated when SOL is used to pay them?

Accepted Answer

The network fee for a Solana transaction consists of a base fee plus an optional priority fee, both paid in SOL. The base fee is currently 5,000 lamports per signature. Since 1 SOL equals 1 billion lamports, the base fee for an ordinary single-signature transaction is 0.000005 SOL. Fees for signature verification and processing are still charged even if the transaction execution fails. A priority fee raises scheduling priority during competition. For legacy and v0 transactions, it is calculated as ceil(compute unit price × requested compute unit limit ÷ 1,000,000) lamports, where the price is denominated in micro-lamports/CU and 1,000,000 micro-lamports equal 1 lamport. It is charged on the requested limit rather than actual consumption, so setting the limit too high pays for unused compute; if no price is set, the default priority fee is zero. v1 transactions instead set a total priority-fee amount in lamports directly in the message.

Question 4

Are SOL transaction fees burned or paid to validators?

Accepted Answer

Base fees and priority fees have different destinations: 50% of a base fee is burned and 50% is paid to the validator that produces the block; priority fees are not burned and are paid 100% to the validator. Therefore, fees paid by users do not all go to one party, and increased network fees cannot be equated directly with a reduction in SOL net supply. The two fee types also serve different economic purposes. The base fee covers fundamental processing costs such as signature verification. The sender sets the priority fee voluntarily to seek higher scheduling priority in the same period. A transaction’s priority is also affected by its estimated resource cost; for complex transactions or those writing to contested accounts, an appropriate compute-unit limit and price can affect both cost and the probability of prompt processing.

Question 5

What account is needed for native SOL staking, and who controls the assets after delegation?

Accepted Answer

Native staking begins by creating a stake account and then delegating the SOL in it to a validator. An ordinary system account is mainly for sending and receiving SOL and cannot directly hold this delegation state. A stake account can be delegated to only one validator at a time; distributing stake among several validators requires creating or splitting it into multiple stake accounts. A stake account involves at least two key authorities. The stake authority can delegate, deactivate, split, or merge the account. The withdraw authority can withdraw undelegated SOL back to a wallet and can reset authorities. They may be the same address or different addresses. Because the withdraw authority can liquidate undelegated SOL in the account, custody of that authority is especially important. Delegation does not transfer SOL to the validator; the user still controls stake-account operations through these authorities.

Question 6

When do rewards begin after staking SOL, and when can SOL be withdrawn after unstaking?

Accepted Answer

Delegation and deactivation do not complete immediately. Newly delegated SOL first enters an activating state and becomes eligible for rewards only as it gradually becomes effective stake at epoch boundaries. After deactivation, it enters a deactivating state, and only the portion that becomes inactive can be withdrawn to an ordinary wallet. Official documentation says an epoch is about two days, but the actual wait should not be promised as a fixed number of days. This is because the protocol limits the amount of active stake that can activate or deactivate across the network to 25% per epoch, preventing a sudden change in a large amount of stake weight. If total requests to change state during the same period exceed that limit, only part completes at the first epoch boundary and the rest must wait for later epochs. A cooling-down portion cannot be withdrawn, and an activating portion has not yet begun earning rewards. Even after deactivation, a stake account with a lockup cannot be withdrawn before its lockup date or epoch arrives.

Question 7

What determines SOL staking rewards, and what does validator commission mean?

Accepted Answer

Staking rewards are not a fixed interest rate. The main variables identified by the official documentation include the current inflation rate, the total amount of SOL staked across the network, the chosen validator’s uptime performance, and the commission the validator charges on rewards. Inflation issuance supplies the rewards; the more effective stake exists across the network, the more stake shares the same reward pool; validator voting and block-production performance and commission affect the delegator’s final share. When selecting a validator, commission indicates only the proportion it takes from rewards and cannot alone represent the outcome. Its operating performance and public validator information should also be checked. The Solana Foundation explicitly does not recommend any particular validator. The current protocol has no implemented slashing mechanism, so penalty rules from other PoS networks must not be presented as current Solana rules; this does not eliminate risks related to wallet authorities, validator performance, or changes in rewards.

Question 8

Is SOL supply fixed, and how do inflation and fee burning affect it together?

Accepted Answer

SOL does not have a fixed maximum supply like assets with a hard cap. One side of its supply comes from protocol inflation, used for validator rewards and ongoing development funding; on the other side, 50% of base transaction fees are burned. How net supply changes over a period depends on the relationship between newly issued SOL and burned base fees, so it cannot be concluded from transaction activity alone or from a single supply snapshot. Solana’s official inflation explanation describes the original rule as an initial annualized inflation rate of 8%, declining by 15% each year, with a long-term annualized target of 1.5%. These are historical design parameters for issuance rules, not a yield rate guaranteed to any wallet or staker. Actual staking returns also depend on network-wide stake, validator performance, and commission.

Question 9

What is the difference between SOL and SPL tokens on Solana?

Accepted Answer

SOL is Solana’s native asset, while SPL tokens are other assets created and managed by token programs on Solana. Both can be held and transferred within Solana’s account system, but SPL tokens have their own mints and token accounts. An SPL token with a similar name must not be treated as native SOL. Transferring an SPL token does not mean it can directly pay protocol transaction fees. A transaction must designate a fee-payer account, which must be a system account owned by the system program, and network fees remain denominated in SOL. Creating an account to hold an SPL token may also require a rent-exempt balance based on the account-data size; this is SOL reserved for on-chain account storage, not the base fee for each transfer.

Question 10

Why can a Solana transaction fail or expire while still incurring SOL fees?

Accepted Answer

A Solana transaction can contain multiple instructions, such as creating an account before making a transfer or calling several on-chain programs. These instructions are processed atomically: either all succeed and the state changes are committed, or a failure in any instruction rolls back all state changes. A rollback does not mean fees are waived, because the network has already verified and processed the transaction. A transaction must also carry a recent blockhash. Current documentation lists its validity window as 150 slots. If it is not processed within that window, the transaction expires, and the sender normally needs to obtain a new blockhash, rebuild it, and sign it again. For users, “signed” does not mean successfully recorded on-chain; the result should be checked through the confirmation status shown by a wallet or block explorer.

Question 11

What did the 2020 Mainnet Beta initialization mean for SOL?

Accepted Answer

Solana soft-launched in early 2020, and Mainnet Beta was initialized by a global validator community before the end of the first quarter of 2020. The significance was that the network moved from its prior stage into a mainnet environment maintained by validators, allowing SOL to serve as the native fee and staking asset in actual on-chain operation. “Mainnet Beta” was the network’s formal name at the time and should not be interpreted as a token migration, exchange, or a required token swap for SOL holders. Protocol fees, transaction formats, or client functions could continue to evolve afterward, but each must be assessed separately based on its specific release and mainnet activation status; later features must not be projected back onto the 2020 launch.

Question 12

How can network use, staking, and fee mechanisms affect SOL supply and demand, and why do they not necessarily mean the price will rise?

Accepted Answer

There is no mechanical relationship in which a single metric determines SOL demand, tradable supply, or price. Using on-chain programs and paying base and priority fees create operational demand for SOL as a fee asset. Staking places SOL in stake accounts, where it cannot be transferred as immediately as an ordinary balance during activation. Meanwhile, inflation issuance, fee burning, and holders’ buying and selling can all change the amount available in markets and expectations at the same time. Whether these links translate into price changes also depends on whether applications actually require users or fee payers to hold SOL, whether fee sponsorship exists, whether stakers are willing or able to sell, and the market’s overall trading depth and risk appetite. Therefore, transaction counts, development activity, upgrade announcements, or staked amounts alone cannot prove that SOL’s price must rise; at most, they are conditions to verify when analyzing the intermediate links above.

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