In the block explorer
Look up height 0 in the mainnet explorer. It shows the same hash, the same header time and an empty coinbase. The explorer is a convenience — your own node is still the authority.
HomeVerify
Mainnet · live
Check you are on the real chain.
A chain is identified by its genesis block. You can check it against the one below. Nothing on this page needs to be taken on trust: every value is published, and every one of them is something your own node will report back to you.
The launch
The genesis block, and a closed start.
SWARM mainnet has been live since 2 October 2026, 15:42 UTC. The genesis block holds no spendable coins; every SWM that exists has been mined. The first 30 days are a closed start. Until 31 October 2026, 15:42 UTC only the project's own machines can mine: in those 29 days about 33,408 blocks are produced, about 208,800 SWM (80% to the project's mining wallet, 20% to the three funds), about 0.99% of the cap. From then until 1 November 2026, 15:42 UTC the people on the waiting list can mine too; from that moment mining is open to everyone and the node software will be published on this site. Why: the infrastructure around the coin, liquidity pools included, needs coins before public mining begins; the aim is an orderly, predictable start.
| Network | SwarmMainnet |
|---|---|
| Live since | 2 October 2026, 15:42 UTC |
| Genesis block hash | 01b76d8a0f18c502b23ab6605e26296d189aa5770fc4a34155e5c7b250a0eff2 |
| Genesis header time | 2026-10-02T15:41:37Z |
| Block 1 | 2026-10-02 15:43 UTC |
| SHA-256 of genesis.hex | 137e2e962c749e8bad49ad7cff72eb1e35feaf91dc717c36313d660d08d87f8f |
| Spendable outputs in the genesis block | 0 |
| Closed start | Until 31 October 2026, 15:42 UTC only the project's own machines can mine: in those 29 days about 33,408 blocks are produced, about 208,800 SWM (80% to the project's mining wallet, 20% to the three funds), about 0.99% of the cap. From then until 1 November 2026, 15:42 UTC the people on the waiting list can mine too; from that moment mining is open to everyone and the node software will be published on this site. Why: the infrastructure around the coin, liquidity pools included, needs coins before public mining begins; the aim is an orderly, predictable start. |
| Proof of work | Equihash 200,9 |
| Ticker | SWM |
| Target block time | 75 seconds |
From the source
Every published release is listed with its SHA-256 in the release repository. The launch manifest and the node software are published when mining opens: from 31 October 2026, 15:42 UTC for the waiting list, from 1 November 2026, 15:42 UTC for everyone.
Where the apps connect
The public addresses of the live network.
| Mainnet light server (TLS) | lwd-main.swarm.green:443 |
|---|---|
| Mainnet block explorer | mainnet.explore.swarm.green(opens in a new tab) — live, showing SwarmMainnet |
| Testnet block explorer | testnet.explore.swarm.green(opens in a new tab) — the public testnet, whose coins have no value |
These are the public addresses of the live network. Earlier wallet builds (desktop 0.1.0-mainnet.9 and older, Android 0.2.0-mainnet.4) no longer connect to it; the current version is in the Ecosystem. explore.swarm.green and mainnet.explore.swarm.green are the same mainnet explorer; the testnet explorer is testnet.explore.swarm.green.
The project’s funds
Three addresses, published, paid block by block.
Twenty per cent of every block reward goes to these three addresses, automatically, as part of the block itself. It is not a premine and not a treasury that was filled in advance: it accumulates one block at a time, in public, and you can watch it arrive in the explorer.
| Fund | Share | Published address |
|---|---|---|
| Core Development | 8% | s3fLmEHc1xqs8KAe7QS7oupkhuGDjidV4eq |
| Grants & Ecosystem | 4% | s3RiGvK5JzS8eh6ywN3K22f2LzDAhicgFuq |
| Community & Development Reserve | 8% | s3g3pzQVhvVX17bzrrEN3vmcXZWSpj7KFVp |
How the keys are held
Pay-to-script-hash, 2-of-3 multisig (s3…). Each script is controlled by three key shares generated offline at the launch key ceremony and held under the custody policy published with the launch manifest; two of the three are needed to spend.
No single person and no single machine can move these funds, and the signing procedure has been exercised end to end rather than only written down.
What is deliberately not here
The project also mines; during the closed start it is the only miner. That payout goes to the project’s own mining wallet, and its address is not published: publishing it would hand everyone a permanent view of a wallet that has no governance role.
The three addresses above are the ones with a claim on the block reward, so those are the three that are published.
The percentages are fixed in the genesis rules and cannot be changed. The destinations can only be changed by a formal protocol upgrade, which every node would have to accept. The full schedule, era by era, is on the network page.
Addresses
How to tell which network you are on.
Read the first characters of any address. Mainnet and testnet use different prefixes on purpose, so a testnet address can never be mistaken for a real one — and a payment sent to the wrong kind of address is rejected rather than lost into another chain.
| Starts with | Network | What it is |
|---|---|---|
| swm1… | Mainnet | Shielded — Unified shielded address. The default in SWARM Wallet. |
| s1… | Mainnet | Transparent — Transparent pay-to-public-key-hash address. |
| s3… | Mainnet | Transparent (script) — Pay-to-script-hash, used by the three fund addresses and by mining payouts. |
| swarm1… | Testnet | Shielded — The public testnet keeps its own prefix. Testnet coins have no value. |
If something does not match
Then stop, and tell us.
A genesis hash that differs from the one on this page means the software you are running is not on SWARM mainnet. That can be an old build, a testnet build, or something that is not ours at all. Do not send coins to it, and do not enter a recovery phrase into it.
Download only from the links on this site, check the SHA-256 before you install, and write to swarmofficial@atomicmail.io if a published value and a running app disagree. We will never ask you for your recovery phrase, your private keys or a payment.