We are migrating to our chain. Please swap your tokens over here


Genesis block created on

25th September 2019

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Watch our Video ProximaX Mainnet Explained


BETA V0.4.7

Use the ProximaX Sirius Wallet Beta v0.4.7 to swap your existing XPX tokens from NIS1 to the ProximaX Sirius blockchain

Download desktop wallet
Mobile wallet coming soon


Empowering the development of highly-secure and cost-efficient applications and system solutions

Sirius Platform Details


Use our browser to view information on blocks, addresses, and transactions on the ProximaX Sirius blockchain

Sirius Explorer Page


Available in several languages, developers can now use our SDKs to easily interface and communicate with the ProximaX Sirius platform to build applications

Visit SDK Details


We are proud to share ProximaX’s upcoming milestones and timelines including the launch of the Storage Mainnet, Supercontracts, and Streaming Mainnet.

* ProximaX reserves the right to change the dates and deliverables on this roadmap.

Blockchain SDK Launch

June 2019

Blockchain Testnet

June 2019

Storage Testnet Streaming Testnet

June 2019

Faucet Testnet Explorer Testnet

June 2019

Storage SDK Launch

September 2019

Supercontract SDK and VM Launch

September 2019

Blockchain Mainnet

September 2019

Storage Mainnet

December 2019

Supercontracts Launch

December 2019

Streaming SDK Launch

December 2019

Streaming Mainnnet

February 2020


* Swap function availability to be announced

It is important to note that with the launch of the ProximaX Sirius mainnet, you will need to migrate your XPX tokens from the NIS1 blockchain to the ProximaX Sirius blockchain.

We have designed easy-to-follow swap procedures for both single signatory and multi-signatory accounts.

Your XPX will continue to exist on the NIS1 blockchain until the year 2025 or when NIS1 is deprecated, whichever is earlier. While we will endeavour to port across from NIS1 to NIS2, we do not know nor have any control over the network. Hence we strongly encourage all XPX token holders to carry out the XPX swap as soon as possible.


Download Sirius wallet
Select SWAP service
Enter NIS1 private key
Enter swap amount
Swap commences, and within a few hours Sirius wallet balance reflects receipt of XPX


  • Multisig account has 3 co-signatories — A, B, and C
  • Condition: 2/3 must sign for the transaction to be approved
Co-signatory A downloads Sirius wallet
Selects SWAP service
Enters swap amount
Selects multisig transaction and enters NIS1 private key for co-signatory A
Swap system validates the transaction
Co-signatory B or C must sign-off in the NIS1 network within 24 hours
Swap commences, and within a few hours Sirius wallet balance reflects receipt of XPX


ProximaX Sirius has a multidimensional inner economy, where XPX is used to pay for services and power the blockchain. Internal non-tradable service units (storage unit, streaming unit, Supercontract unit, content review unit) are used to power communication protocols between the different node actors. This approach facilitates the future expansion of the platform by making it possible to add on new types of services.

High-level Technical Whitepaper v2 Download PDF



Validators are rewarded for securing the network by running nodes


Rewards are dependent on wealth and age (Proof of Stake) and fee requested (Proof of Greed)


Regular users can delegate XPX directly from their wallets to Validators


These users enjoy their share of rewards without giving up control of their XPX


What networks are involved in the swapping process?

There are 2 networks involved, namely ProximaX Sirius which is the ProximaX main network and the NEM NIS1 network.

When can I swap my XPX tokens over to the Sirius Chain?

You will be able to swap your XPX tokens once the mainnet is live and the Sirius wallet swap function is available.

What do I need to do to effect the swap from NIS1 to ProximaX Sirius?

You will need to download the Sirius wallet and follow the instructions here.

What is the first step I should take to do the swap?

Save your current NIS1 private keys i.e. the keys to your current wallet that holds your XPX tokens. Funds can be lost if you fail to do so.

What are the steps I need to follow to swap my tokens?

1. Save and store your NIS1 private keys before starting the swap process.

2. Download the Sirius wallet.

3. Create a Sirius account wallet by importing your NIS1 account private key.

4. Select “SWAP” to begin the swap process and enter the quantity of XPX to be exchanged.

5. Once the transaction is confirmed and executed, your balance will be shown in the ProximaX Sirius wallet.

How do I conduct a swap for a multisig account?

Any co-signatory to a multisig account can initiate a swap. The basic steps are:

1. One of the co-signatories of the multisig account downloads the Sirius mobile wallet.

2. He creates a Sirius account wallet by importing his NIS1 account private key.

3. He selects “SWAP” to begin the swap process and enters the quantity of XPX.

4. He then selects to create a multisig transaction.

5. The system validates the multisig transactions and it is sent to the NIS1 network to be signed by the other co-signatories of the multisig account. The co-signatories must sign-off within 24 hours.

6. Once the transaction is confirmed, the swap takes place and the XPX balance is shown in the Sirius account.

How long will it take before my XPX tokens are reflected in my Sirius wallet?

It can take anything from a few minutes to several hours for the swap to take place.

What wallets will ProximaX be releasing?

ProximaX will be launching the Sirius wallet, which will come in a desktop, web, and mobile version.

Can I swap my tokens through my ProximaX mobile wallet V2 or NEM Nano wallet?

While this is possible, we will not be supporting this method as it is tedious. Hence, we strongly encourage all token holders to download the Sirius wallet and perform the swap there.

What are the pre-requisites to conducting a swap?

Yes, you will need your NIS1 private key and you will need some XEM (nem:xem) tokens to pay for the transaction. The amount required to pay for the transaction should be less than 1 XEM.

Do I need to pay for transaction fees on ProximaX Sirius chain?

Yes, but the native token for transaction fees will be the XPX. XEMs will no longer be required.

When should I swap my XPX tokens over from NIS1 to the Sirius Chain?

We encourage all XPX holders to do the swap as soon as possible.

How long will my XPX tokens stay on the NIS1 blockchain?

Your XPX tokens will exist until the year 2025 or when NIS1 is deprecated, whichever is sooner.

When will NIS1 migrate to NIS2?

We are not involved in migration and do not know the schedule. We will endeavour to port across from NIS1 to NIS2, however we do not know nor have any control over that migration path.

Can I lose my funds?

Yes, if you don’t save your private key in a safe place (hardware wallet, piece of paper, engraved in metal, etc). We are not responsible for the loss of any account. Save Your Private Keys!

Why is the first block (block 1/genesis block) created in 2016?

The development of Catapult started at around this time. We have decided to maintain the epoch time set by the core developers in the original code. This is to reflect the development time taken until the creation of the first mainnet launch using the Catapult technology. The second block is the official start time of the Sirius mainnet.

Finally, we would like to pay tribute to the core developers for their contribution to the technology: Jaguar0625, Bloody Rookie and Gimre.

For the tech savvy: constexpr auto Epoch_Time = std::chrono::duration<int64_t, std::milli>(1459468800000);


Have an issue? Chat directly with our support team:
 ProximaX Helpdesk