No. XX is a standalone layer-1 blockchain and combined mix network platform.
XX’s blockchain system operates as what is known as a ‘solo chain’, and not a parachain.
This is a common question and understandable because there are elements of XX that can and do appear to interact with some parts of the Polkadot ecosystem, but they are in effect completely separate.
XX’s blockchain system was built using the Substrate framework, which is the same framework that Polkadot’s was built with. However, XX developers added special customisations to, for example, cater for the cMixx network to run alongside it.
Running as a solo chain gives XX all the benefits of a well developed and tested code base for the blockchain but also complete autonomy in its direction and security/governance.
Bridges to interact with other networks also give XX the same advantages a parachain would have, once they are deployed.
XX’s first priority was to have the network as decentralised as possible from the outset in order to offer a truly resilient privacy proposition. The network manifested after a multi-year process of scrutinising XX node runner applications (including the use of KYC), so that when XX’s main net launched, it had an excellently diverse geographical base – more so, in fact than other Substrate-based networks. Since Mainnet, running a node is permissionless and anyone can run one but the network remains diverse geographically two years on.
XX nodes and gateways call into this telemetry site for Substrate based networks, and XX comes in third in terms of node numbers, below Polkadot and Kusama. As XX grows, it may well easily be bigger than both – something that will be necessary to support the linear scaling of cMixx when the network needs it.
This tweet from XX demonstrates a view from that site that shows how decentralised XX is as a result of choosing to be a solo chain:
XX does benefit greatly from being a Substrate-based network however, in that existing tools and software designed for Polkadot (or other networks) can be adapted for XX relatively easily. The XX adaptation of the Polkastats Explorer and integration into Novawallet and Subwallet are examples of this. It also means that integrating XX Coin into new exchanges is less of a development hurdle at the exchange end when they already list a Substate network based coin (like DOT). The exchange integration guide has more details.
- What is the XX Network?
- Is XX Coin a Privacy Coin?
- How Much and When Were the Original XX Coin Sales?
- What is cMixx? Is it Different From cMix?
- Is David Chaum Still Part of the XX Network?
- What is Project Tourbillon?
- How do I Stake XX Coins?
- Where Can I Buy XX Coin?
- When Will XX Be Listed on Another Exchange?
- What is the Current State of Development?
- Is The XX Network a Polkadot Parachain?