Block time
—ms
— blocks every second, measured over the last three minutes
Solana Accelerationism
This summer Solana cut its block time from 400 milliseconds to 250. The creed behind that is four letters long: IBRL. Increase bandwidth, reduce latency, stop when physics says so. s/acc is the name for the people who mean it.
The strip above shows live Solana mainnet values: current slot, measured block time, transactions per second, time to finality and epoch progress.
01 Live from mainnet
For six years Solana's block-time target was 400 milliseconds. On August 21 it dropped to 350, a week later to 300, and on September 18 to 250. The next target is 200. Every number below is read from mainnet while you look at it.
Block time target in milliseconds. Dates are when each cut took effect on mainnet, one epoch after its feature gate activated. Read from the gate accounts on mainnet; background: Solana Foundation, September 28, 2026. The four gates have on-chain addresses that begin with iBRL. The creed is written into the chain; watch the next one.
transactions since genesis. It has not stopped while you read this.
—ms
— blocks every second, measured over the last three minutes
—
user transactions per second. — counting validator votes
—s
— slots deep. Light has circled the Earth — times by then
—
—M SOL staked, —% of supply. Running v—
An epoch is 432,000 slots. At today's block time that is —. More instruments in the hub.
02 The Yakovenko scale
Literally the goal of Solana is to carry transactions as fast as news travels around the world — so speed of light through fiber.
Light circles the Earth in 133.7 milliseconds. Call that one lap. A market is as advanced as the number of laps it makes you wait before a trade is final. Press the button and wait with it.
Bars are drawn on a square-root scale so the slow lanes move at all. The countdowns are exact.
The name is ours. Kardashev never met a blockchain and Yakovenko never asked for a scale.
03 The creed
Every second you wait, someone faster gets paid. We stopped paying.
IBRL. Four letters, the whole plan. Everything else is commentary.
A market split across ten chains is ten small markets. It settles in one place or it does not settle.
Light needs 133.7 milliseconds to circle the planet. We stop accelerating when it does.
Every memecoin is a load test. The degens paid for the bandwidth and broke it in for everyone else.
The hard thing, shipped. Then the next hard thing.
Then it came back. A chain that walked out of its own funeral does not flinch at a red candle.
Every leader gets four slots, then the next one steps up. Same here.
04 Receipts
Anatoly Yakovenko publishes Proof of History: a way for a network to agree on time without talking about it.
March 16. The target is a block every 400 milliseconds. It stays there for six years.
BONK is airdropped on December 25, four days before the bottom.
FTX is gone and SOL touches $8.00 on December 29. The obituaries are already written.
February 6, five hours. Nothing since. — days and counting.
Validators approve Alpenglow with 98% of the vote: finality in about 150 milliseconds, one lap of light. It is not live yet.
Firedancer, a second client written from scratch by Jump, is announced live on mainnet in December. Its first general release follows in August 2026.
Block capacity reaches 250 million compute units a second, about twice what it was in early 2025.
A routing fault takes it offline for half an hour. Blocks keep coming.
Three cuts to the block time in four weeks, with no downtime. Right now: — ms.
A Solana Foundation review calls the 200 millisecond question "increasingly philosophical and economic, rather than purely technical." Alpenglow reached testnet on September 24.
Every line is sourced in the roadmap document and tracked in the hub.
06 The mechanism
The fees from e/acc are pledged to a new institute that studies acceleration. Ours go back into the thing being accelerated. When an epoch's fees reach one SOL they are split in half. One half is staked to an independent Firedancer validator under a lockup that runs to January 1, 2100: nobody can withdraw it before then, us included. The other half buys s/acc and burns it.
Every trade of s/acc pays a creator fee. The rate is pump.fun's schedule; we cannot change it.
Once per epoch, when the fees reach one SOL, they are split in half. The chain keeps the schedule.
Half is staked to an independent Firedancer validator and locked until 2100. The other half buys s/acc and burns it.
The aim, never a promise: if the stake grows large enough, it gets a validator of its own.
| Epoch | Staked | Stake account | Proof |
|---|---|---|---|
| No offerings yet. The first one lands at the end of the first epoch in which the fees reach one SOL, and every one after it is listed here with its transaction. | |||
What is not on chain is not claimed. Every offering links to its transaction and its stake account, which anyone can check without asking us. Holders have no claim on the stake or its rewards. Whoever holds the staker key chooses the validator, and that address is published with the first offering.
07 Take your slot
On Solana no leader holds the chain for long: four slots, then the next one steps up. Take yours. The slot the chain is on when you press the button is yours for good, stamped on a card you can post.
Slot belongs to . Put (s/acc) after your name. That is the whole initiation.
08 The coin
Other coins have already borrowed this name. None of them is this. The contract address will be published on this page and nowhere before it.