The public testnet of Zecnero started at 21:11 UTC on September 24, 2026. It runs the consensus rules of the specification, and anyone can join it: run the node, mine with an ordinary desktop processor, and send transactions with the testnet wallet.
The genesis block
The first block of the testnet has this hash:
004aa9ae10c69d42dfba2ecd1485aab0881109c73d49796336a5c976461df0a8
It commits to Bitcoin block 968,452, 000000000000000000021409abc8597e7035fdff6408e836a5fc1c0b885038e7, which shows it was not made before that Bitcoin block was mined. Ask your own node for block 0 and it returns the same hash.
What the testnet runs
- RandomX proof of work with the Zecnero salt, algorithm
rx/zecnero, so an ordinary desktop CPU is competitive hardware. - A block every 75 seconds on average, with aserti3-2d difficulty anchored at genesis.
- 6.25 ZMR per block, halving every 1,680,000 blocks.
- The founder stream: 3% of each block’s subsidy, 0.1875 ZMR, paid by every block and enforced by every node. There is no premine and no dev fund.
- No reorganisation deeper than 20 blocks.
Testnet coins have no value. The testnet is there to prove that the consensus rules and the network hold up. Mainnet has not launched and has no date.
How to join
Two seed nodes, seed1.zecnero.org and seed2.zecnero.org, answer on the testnet port 18733. They are compiled into the node as its default testnet peers.
The first release, zecnero-testnet-v0.1.0, has the node (zecnerod), the bridge (zecnero-bridge), the miner (xmrig-zecnero) and the key tool (zecnero-keygen) for Linux x86-64, with a SHA256SUMS file signed by the Zecnero release key. On Windows they run inside WSL. The mining guide always has the current release and how to install it.
Blocks and transactions are on the explorer at explorer.zecnero.org.
What comes next
The roadmap lists the work that comes next on the testnet and what has to be finished before a Mainnet genesis block is made. Questions and bug reports are welcome on Discord and GitLab.
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