OPSTAN
Download Opstan
Choose one of two archives: a public node with UPnP or a standard node without automatic port mapping. Each archive contains Opstan GUI for beginners and opstan.exe for advanced users.
Opstan GUI — for a simple user
Just open the app and use Opstan like a normal program: connect to the network, sync, see your balance, and send coins & messages.
opstan.exe — node (advanced)
For users who want a full node, logs, and more control. You can run a node, expose API, and help the network stay decentralized.
Public node Opstan (UPnP / incoming connections)
This option is for users who want to participate more actively in the Opstan network. This version may use automatic port mapping (UPnP) if your router or network supports it, so other nodes may be able to connect to you directly. This can improve participation in the P2P network, help decentralization, and make your node more available to other peers.
Pros
- Other participants may be able to connect to your node.
- Stronger participation in the P2P network.
- Better visibility and availability of your node for the network.
- Bigger contribution to the development and resilience of the blockchain.
Cons and risks
- Your public IP address and port may be visible to other participants.
- Your IP address may be propagated through the network and may also be saved by other users' nodes in peer lists, connection files, configuration files, or logs as part of normal P2P operation.
- Your node may receive incoming connections from other participants.
- This mode can make your IP more publicly visible in the network than the version without automatic port mapping.
Standard node Opstan (without UPnP / without automatic port mapping)
This option is for users who want their IP to be less publicly visible across the network. In this version, automatic port mapping is not requested, so other nodes will usually not be able to connect to you directly if your port remains closed by your router, provider, VPN, or firewall.
Pros
- Your IP will usually be less publicly visible across the network than in public node mode.
- Lower chance of incoming connections from other participants.
- A calmer option for most regular users.
- Your node can still work normally for outbound connections and sync.
Cons and limitations
- Other participants will usually not be able to connect to your node, because the port will normally remain closed.
- Your node will participate in the network less actively than a public node.
- Your contribution to decentralization and network availability will be lower.
- Your IP address can still be visible to the nodes you connect to outbound.
- Your IP address may still be saved by other users' nodes in peer lists, connection files, configuration files, or logs as part of normal P2P operation.
- If your port is already open manually, by the router, provider, or for another reason, incoming connections to your node may still be possible.
Operations tab: what you see there
The Operations page in the wallet shows what is waiting in the mempool and what is already included in the blockchain. If an operation has a too small fee while the network is busy, it may not be included.
If an operation doesn’t confirm
An operation will not hang forever: if it doesn’t get into a block, it will be dropped from mempool after about 12 blocks (roughly ~2 hours). Watch the network load and your node status.
Fee rule (very important)
You can set 0 fee when the blockchain is not busy. But if there is a queue, set a fee — miners choose operations with higher fees first, so a fee gives more chance to be included.
Do not send 0 coins
Do not send 0 coins to other wallets. Such operations do not pass and may stay in mempool until they expire (about 12 blocks / ~2 hours).
Check the latest block height
The most important thing: your node latest block height must match the height on the website and other nodes. If your height is behind — you are not fully synced to the network.
If your node is stuck
If your height keeps lagging, you can delete the local database folder opstan_db and restart the node. The blockchain will download again and usually the node will work normally after resync.
How it works now
You can send a message to a channel (public) or as a direct message. For safety and to avoid overloading the blockchain, messaging is currently limited: only 1 message per block (for now). Later we will expand the possibilities.
Address + hash
When you send a message, use the recipient address and the required hash (if your wallet asks for it). This helps the network route and validate messages correctly.
Channel creation and ownership
To create a channel, it is enough to send the first message to it. If your message for that channel is included in the blockchain, the channel becomes bound to your address and only you can write in it.
If the channel name is already taken
If a channel name is already occupied by another wallet, you will not be able to send messages in that channel — it belongs to another address, not yours.
Loss of access and transfer
Remember: this is a decentralized network and it does not belong to anyone. If you lose access to your wallet, you also lose access to the channels you created. Channels can be transferred to other wallets with a special command. Command: owner:wallet address of the new owner. For example:owner:0123456789abcdef0123456789abcdef0123456789abcdef0123456789abcdef
Important
Opstan is a decentralized network and does not hide your IP. Like other blockchains, your IP can be visible when you connect to other nodes and when nodes connect to you. To avoid misleading users and legal issues, Opstan is not presented as an anonymity network. If you want stronger IP masking, use a VPN, Tor, or other IP protection tools.
Default port (1111)
When you connect, use the default port 1111. If the connection doesn’t work, it usually means something on your IP is already using this port. Try 1112, 1113, and so on.
Seed peers are already included
The connection IPs are already built into your peers.txt file. These are our default seed nodes for beginners: 91.99.234.130:443 and 188.137.252.137:443. After the first successful connection, your node will receive all available peers automatically.
If peers.txt is missing
If peers.txt was deleted (or removed by mistake), enter a seed peer manually when connecting: 91.99.234.130:443 (you can also use the second seed). Then you will connect to the network and continue syncing.
Check block height
Watch your latest block height — it must be current (the same as on the website and other users’ nodes). If your height is behind, your node is not fully synced.
Security warning
Do not connect for the first time to suspicious IPs provided by third parties — you may end up on a fake network. Use the official seed peers first.
Pool mining (recommended)
You can mine in solo mode or in a pool. Pool mining is usually better and more reliable: you receive rewards more regularly for your contribution, even if your hashrate is not very high. To mine in a pool, open Opstan GUI, choose Pool mining, and enter the pool IP. Our standard pool is 188.137.225.141:4444. You can use other pools too, but be careful and use only trusted IPs to make sure you mine on the real network.
Pool login = your wallet address
When mining in a pool, your login is your wallet address. Always use your wallet address as the login, so the pool can send your rewards to that address.
How to verify rewards
To check rewards, open the pool website and watch your hashrate and how many blocks you participated in. The website of our pool is pool.opstan.org (pool: 188.137.225.141:4444). There you can monitor all pool information.
Solo mining
If you want to mine solo, open opstan, choose command 1, select power (threads) and start mining. You will receive a reward only if you find a block and it is accepted by the network — this becomes very hard when the network has many miners and is almost impossible without very high hashrate.
CPU load / threads
Watch the power (threads) you choose. 3–4 threads is a typical default, but even that can load your device. Use Task Manager / system monitor to watch CPU load and adjust the number of threads up or down as you prefer.
Download the blockchain source code
Future updates may be proposed by the community. The blockchain source code is intended for advanced users. The source archive is not published on this page yet, but it may be added later.