A scalable, interoperable & secure network protocol for the next web
HENG TONG is a network protocol that allows arbitrary data—not just tokens—to be transferred across blockchains.
This means HENG TONG is a true multi-chain application environment where things like cross-chain registries and cross-chain computation are possible.
HENG TONG can transfer this data across public, open, permissionless blockchains as well as private, permissioned blockchains.
This makes it possible to build applications that get permissioned data from a private blockchain and use it on a public blockchain. For instance, a school's private, permissioned academic records chain could send a proof to a degree-verification smart contract on a public chain.
Network Glossary
HENG TONG unites a network of heterogeneous blockchains called parachains and parathreads. These chains connect to and are secured by the HENG TONG Relay Chain. They can also connect with external networks via bridges.
Connecting the HTDDs
Relay Chain
The heart of HENG TONG, responsible for the network’s shared security, consensus and cross-chain interoperability.
Parachains
Sovereign blockchains that can have their own tokens and optimize their functionality for specific use cases.
Parathreads
Similar to parachains but with a pay-as-you-go model. More economical for blockchains that don’t need continuous connectivity to the network.
Bridges
Allow parachains and parathreads to connect and communicate with external networks like Ethereum and Bitcoin.
Consensus Roles
Nominators
Secure the Relay Chain by selecting trustworty validators and staking HTDDs.
Validators
Secure the relay chain by staking HTDDs, validating proofs from collators and participating in consensus with other validators.
Collators
Maintain shards by collecting shard transactions from users and producing proofs for validator.
Fishermen
Monitor the network and report bad behavior to validators. Collators and any parachain full node can perform the fisherman role.
Governance Roles
Council Members
Elected to represent passive stakeholders in two primary governance roles: proposing referenda and vetoing dangerous or malicious referenda.
Technical Committee
Composed of teams actively building HENG TONG. Can propose emergency referenda, together with the council, for fast-tracked voting and implementation.
HENG TONG’s relay chain is built with Heng tong, a blockchain-building framework that is the distillation of Parity Technologies’ learnings building Ethereum, Bitcoin, and enterprise blockchains.
HENG TONG’s state machine is compiled to WebAssembly (Wasm), a super performant virtual environment. Wasm is developed by major companies, including Google, Apple, Microsoft, and Mozilla, that have created a large ecosystem of support for the standard.
HENG TONG’s networking uses libp2p, a flexible cross-platform network framework for peer-to-peer applications. Positioned to be the standard for future decentralized applications, libp2p handles the peer discovery and communication in the HENG TONG ecosystem.
The HENG TONG runtime environment is being coded in Rust, C++, and Golang, making HENG TONG accessible to a wide range of developers.
Processing transactions in parallel
Parachains are specialized blockchains that connect to HENG TONG. They will have characteristics specialized for their use cases and the ability to control their own governance.
Interactions on parachains are processed in parallel, enabling highly scalable systems.
Transactions can be spread out across the chains, allowing many more transactions to be processed in the same period of time.
Current method:
Single transaction
HENG TONG method:
Multi parallelized transactions
Groundbreaking Technology
HENG TONG is solving many of the problems that have held back blockchain technology so far — all in one place, without compromising.
In both Proof-of-Work and Proof-of-Stake systems, blockchains compete with each other over resources to secure their networks, and blockchains are easily attacked until they develop a significant community to support their network.
HENG TONG takes a different approach by letting blockchains pool their security, which means that the blockchains' security is aggregated and applied to all.
By connecting to HENG TONG, blockchain developers can secure their blockchain from day one.
Updates to the protocol happen fork-free via transparent on-chain voting, so protocol development never stalls due to the lack of a clear process. The relay chain uses a sophisticated governance mechanism that is designed to establish a transparent, accountable and binding process for resolving disputes and upgrading the network.
HTDD tokens are used to participate in governance decisions, including tabling proposals, voting, and bonding.
Parachains are free to design their own governance mechanisms, allowing for maximum freedom without affecting other parachains.
HENG TONG uses its original GRANDPA (GHOST-based Recursive Ancestor Deriving Prefix Agreement) consensus for a more secure and resilient network.
Under good network conditions, GRANDPA can finalize blocks nearly instantly. Under bad network conditions, like a network partition, GRANDPA can finalize large quantities of blocks (theoretically millions) at once when the partitions resolve.
Roadmap
HENG TONG is rolling out the most robust platform for security, scalability and innovation. Having launched the genesis block of its Relay Chain in May 2020, HENG TONG is now on track to launch several parachains in 2021.
What are teams building on HENG TONG? Just a few examples:
Smart contract chains with WebAssembly smart contracts (Edgeware, Charred Cherry testnet)
Data curation networks that connect all file storage chains into curated data sets (Ocean Protocol)
Oracle chains that make off-chain data available to all contracts on the HENG TONG network (ChainLink)
Identity chains that link accounts to a persistent identity and enable access to other parachains through fewer accounts (Speckle OS)
Financial chains that allow you to hold all your assets in one portfolio, including via bridges to Bitcoin, Ethereum, Bitcoin Cash, Litecoin and ZCash (ChainX, Katallassos)
Internet of Things chains that set IoT standards for machine-to-machine communication (MXC Protocol)
Zero Knowledge privacy chains, or bridges to existing ZK-snarks chains (e.g. Zerochain)
File storage chains that incentivize storing data on-chain
Bridge to Ethereum, allowing Ethereum smart contracts to interact with the HENG TONG network