Solana (SOL)

What Solana is

Solana is a public blockchain built for high transaction throughput, with SOL as its native asset. SOL pays transaction fees, and it is the asset staked to secure the network. Solana's documentation defines the network as a cluster, "a set of validators maintaining a single ledger," where each validator is "a full participant in a Solana network cluster that produces new blocks."

The design that distinguishes Solana is Proof of History, which its documentation defines as "a stack of proofs, each of which proves that some data existed before the proof was created and that a precise duration of time passed before the previous proof." That verifiable clock lets the network agree on transaction ordering without validators having to negotiate timestamps with each other.

For where to buy Solana from your country or state, see the availability tables here and the venues listed at Exchanges.

How it works

Time on Solana is divided into slots. The documentation describes a slot as the period during which each leader ingests transactions and produces a block, and says slots "create a logical clock" covering roughly equal real-world time as measured by Proof of History. A leader is "the role of a validator when it is appending entries to the ledger," and produces at most one block per slot. Slots are grouped into epochs, defined as the number of slots for which a leader schedule is valid.

Everything on Solana lives in accounts. The documentation defines an account as "a record in the Solana ledger that either holds data or is an executable program." Accounts hold lamports, the fractional unit worth 0.000000001 SOL, and have unique addresses. Executable accounts are programs, described as "the executable code on Solana blockchain that interprets the instructions sent inside of each transaction." A smart contract on Solana is a program plus the accounts it reads and writes, which is a different mental model from chains where contract code and contract state live together.

Fees have two parts, and the documentation gives exact figures for both. The base fee is 5,000 lamports per signature, which "compensates validators for the cryptographic work of verifying signatures." It is split evenly: 50% burned and 50% paid to the validator.

The optional prioritization fee buys scheduling priority with the current leader. It is calculated as ceil(compute_unit_price * compute_unit_limit / 1,000,000) lamports and goes entirely to the validator. Compute limits are capped: a maximum of 1,400,000 compute units per transaction, with a default of 200,000 per instruction (source: Solana documentation, transaction fees).

The practical effect is that ordinary transfers cost a predictable, very small amount, while contention for block space during busy periods is expressed through the priority fee rather than by raising the base cost for everyone.

Supply and tokenomics

Solana has no supply cap. New SOL is issued on a published disinflationary schedule, and the parameters are stated precisely in the documentation.

Where that issuance goes is equally specific. Validators take a commission before the remainder is distributed to delegators in proportion to active stake.

One distinction in the documentation is worth repeating because it is misread constantly: "the inflation rate will not be the same as the staking yield." Inflation describes total new issuance across the whole supply. Staking yield describes what a particular staker receives, and it depends on what proportion of total SOL is staked, on validator uptime, on the commission that validator charges, and on any slashing events. A quoted apy from one epoch is not a promise about the next.

Working against issuance, half of every base fee is burned. That does not offset inflation at current usage levels, but it is a real and permanent reduction tied directly to network activity.

History

Solana's public documentation frames the project around one technical claim: that a verifiable passage of time, recorded as Proof of History, removes a bottleneck that other consensus designs live with. Rather than validators exchanging messages to agree when something happened, each can verify the ordering independently from the proof chain itself, and consensus work reduces accordingly.

The rest of the architecture follows from that decision. Fixed slot boundaries with a known leader schedule per epoch make block production a scheduled activity rather than a race. The separation of program code from account data allows transactions that touch different accounts to be executed in parallel, which is the second half of the throughput argument.

The economics were set up as a long glide path rather than a fixed rule. Beginning at 8% annual inflation and reducing 15% per year toward a 1.5% floor was a deliberate choice to pay for early network security and taper that subsidy as the network matured. Because the schedule is defined by rates rather than dates, the current inflation figure at any moment is a function of how long inflation has been running.

Risks and what to watch

Network liveness is the risk with the longest documented history on Solana. A chain built for very high throughput has, at times, been more sensitive to load and to client bugs than slower designs. Watch client diversity, meaning how many independent validator client implementations are in production use, since a single-client network shares a single bug.

Validator concentration and stake distribution matter for the same reasons they do elsewhere: a small number of large operators is a censorship and coordination concern regardless of how the consensus algorithm is described.

Fee dynamics are worth understanding before you transact during a busy period. The base fee is fixed, but priority fees are an auction, and a transaction submitted without one may simply not be included when demand is high. On the application side, mev and slippage on decentralized venues can move the price you actually receive away from the quote you saw.

Staking is not risk-free. Delegating through an exchange or a pool adds that operator's risk on top of the protocol's, and lockup and unbonding rules mean staked SOL is not instantly available. Availability of staking products also differs by jurisdiction, which RampAtlas tracks on its jurisdiction pages.

Frequently asked questions

What does a Solana transaction cost?

The base fee is 5,000 lamports per signature, where a lamport is 0.000000001 SOL. Half of that base fee is burned and half goes to the validator. An optional prioritization fee, calculated from a compute unit price and limit, goes entirely to the validator and buys scheduling priority.

What is Proof of History?

Solana's documentation defines it as "a stack of proofs, each of which proves that some data existed before the proof was created and that a precise duration of time passed before the previous proof." It functions as a verifiable clock, letting validators agree on ordering without exchanging timestamps.

Does Solana have a maximum supply?

No. Solana issues new SOL on a disinflationary schedule: 8% initial annual inflation, reducing 15% year over year, toward a long-term rate of 1.5% annually. All inflationary issuance goes to delegated stake accounts and validators.

Is the staking yield the same as the inflation rate?

No, and Solana's documentation says so explicitly. Yield depends on the share of total SOL staked, validator uptime, the validator's commission, and any slashing. Rewards are distributed once per epoch, roughly every two days.

Where can you buy Solana?

Availability depends on your country or US state. See where to buy Solana for the exchanges serving your jurisdiction, and Exchanges to compare fees, kyc requirements, and supported payment methods.