On July 23rd, TYPE V DAO and Teleport Network co-organized a cross-chain theme sharing session, and invited guests from IBC League, Multichain and MAP Protocol to explore the cross-chain bridge technology industry in the grand blueprint of the blockchain world. Current status, future development and significance for web3. As a cross-chain technology that is becoming more and more critical in the vigorous development of the blockchain, how does it continue to move forward in the context of security issues?

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Six key points

1. The public chain and the cross-chain protocol are generally considered to be two routes in the cryptocurrency market, but there is a point of integration between the two, but everyone's focus is different.

Second, the public chain and cross-chain are not competition, but complementarity. Independent ecosystems (Cosmos, TeleportNetwork, and MAP Protocol) also need to communicate with the outside world, and a cross-chain protocol is required at this time.

3. The cross-chain is technically a public chain in essence, and the cross-chain is too versatile, forming a competition with the public chain; the cross-chain weakens the versatility and becomes complementary to the public chain.

4. The current cross-chain track is mainly divided into two parts, namely asset cross-chain and information cross-chain, or general cross-chain interoperability. At present, most projects in the market are mainly based on cross-chain assets.

5. The definition of cross-chain can be divided into multiple chain, multiple chain + bridge and interchain. Multiple chains are chains that are not associated with each other. For example, Solana, Near, Ethereum, and Cosmos are chains that coexist, but they do not interoperate; multiple chain + bridge is a cross-chain bridge, also called cross-chain, which is a third-party bridge that connects scattered chains; interchain is an ecological It is a concept in the Cosmos ecology that each zone or chain in it forms an isomorphism (interchain) of a multi-chain environment based on the protocol cross-chain.

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TYPE V DAO @Leonpowerwind

Teleport Network – Luca @Teleportchaincn @0xlukaL

IBCL – Alex Wang (Cosmos co-founder) @alexwanng

Multichain –  Alfred Xu @AlfredXu6

MAP Protocol – Lee (co-founder) @0xfuzi

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Teleport Network – Luca

1. At present, the market is mainly engaged in asset cross-chain, but in the future, it will be more inclined to information cross-chain development.

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Multichain –  Alfred Xu  

1. Multichain is relatively well-known for digital asset cross-chain services, but its internal positioning is a third-party cross-chain infrastructure, which can interact and connect between different chains without obtaining permission and certification.

2. Market status: From digital assets to information cross-chain, the reason why it originated from digital asset cross-chain is because the blockchain industry was first started by DeFi.

3. Although cross-chain interaction is in its infancy, it is unstoppable and has a lot of potential. There are two reasons behind it:

- At present, the multi-chain ecology is a multi-chain ecology based on EVM compatibility, but in the future it will revolve around various technical systems, so the multi-chain ecology between EVM and non-EVM still has untapped potential. At the same time, the continuous enrichment of the chain application environment and the refinement of focused functions will bring more gaps that need to be bridged and drive the development direction of cross-chain.

- Application of dApps. Multiple ecological chains are the underlying basis for the decentralization of dApps, so dApps will gradually form a DEX state and complete a business across multiple blockchains. The cross-chain ecology will promote the new application of dApps and continue to generate different cross-chain requirements.

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IBCL – Alex Wang

1. The definition of cross-chain can be divided into

- multiple chain: Chains that are not related to each other but coexist, without interoperability.

- multiple chain + bridge: cross-chain bridge, or cross-chain, is a third-party bridge that connects decentralized chains.

- interchain: Each zone or chain in an ecology is based on the agreement to cross-chain to form a multi-chain environment (interchain), which is a concept in the Cosmos ecology. Interchain is a relatively new development trend. Different protocols are integrated with each other, which is a cross-chain in a cross-chain. For example, Con-possible Finance combines three protocols/chains together.

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MAP Protocol – Lee

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IBCL – Alex Wang

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Teleport Network – Luca 

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MAP Protocol – Lee 

1. Cosmos is an isomorphic chain for main webpage developers, and the Cosmos SDK needs to be implanted into the bottom layer of other chains to cross heterogeneous chains; MAI Protocol is for dApps developers, using a completely decentralized solution to cross chains.

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IBCL – Alex Wang

1. Cosmos features:

- Emphasize sovereignty and independence, and attach importance to the proliferation and expansion of ecology. Apply a chain and then own the shared area.

- The application chain has been updated, extended and evolved to the consumption chain, and upgraded to shared security.

- Smart contracts based on CosmWasm, the development of smart contracts has been active recently.

- Interoperability reflected in the IBC protocol.

2. The Cosmos Hub shared security solution allows Atom holders to have more benefits.

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Multichain – Alfred Xu

1. Answer several cross-chain solutions from three dimensions:

- Multichain is a third-party cross-chain facility. It is a protocol that opens up the road between different layers and systems of different chains.

- Distributed electronic signature scheme.

- Asset cross-chain is essentially based on message cross-chain, so it is not a black and white classification of assets and information cross-chain.

2. The uniqueness of Multichain: Our vision is to promote the development of multi-chain applications, environments and dApps, provide an open and open underlying cross-chain infrastructure for these developments, and become the ultimate route for Web3.0. Although there are security considerations for cross-chain, the demand for development in the cross-chain field is unstoppable.

3. Our products include products like anyCall, which integrate digital application and digital asset cross-chain infrastructure, as well as fastMPC, an off-chain trust base, which may develop into a chain, but unlike Cosmos, we hope to integrate fastMPC To create a public and open blockchain, you can use the infrastructure of the trust base. Now fastMPC is also in the state of public testing.

4. Four major characteristics of the product: security, decentralization, efficiency, and application scenarios

- Security: The source hold signature algorithm engine implemented by fastMPC can solve engineering problems online or offline, and its security is layered. During the attack, there were no security holes at the algorithm engine level. In online applications, fastMPC is also the most tested in the market.

-Decentralization: When fastMPC was launched, the original intention was to change the centralization of electronic signatures in the blockchain by implementing algorithms for distributed electronic signatures. However, it is currently only used in asset cross-chain because the market has such a demand. Regarding the security of fastMPC, it is based on the deterministic guarantee of cryptographic algorithms. It is more reliable in nature, that is to say, it is not so-called challenging at the application level. Regarding whether fastMPC is sufficiently decentralized, we are constantly promoting the process of fastMPC decentralization. Now the fastMPC network has been tested to become a node state that users can participate in on the public network.

- Efficiency: Cross-chain is limited. Efficiency depends on the delay of the stable state between the original chain and the target chain and the process of cross-chain state transfer between different solutions.

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Teleport Network – Luca

1. We position ourselves as a cross-chain interoperability protocol. Cross-chain, like blockchain, has an impossible triangle: universality, cross-chain contract invocation, and scalability. Scalability includes the degree of consistency, that is, whether to use the security of the blockchain itself or through external verification methods.

2. There are 2 ways: PMC TSS and Light Client, each has its advantages and disadvantages.

-Light Client: To verify the correctness of link interaction by deploying smart contracts on the chain, so it will be safer for users who believe in the security of the blockchain itself, but the cost is high.

-TSS: Efficient and relatively safe, applicable to both homogeneous and heterogeneous chains.

-Other ways: Connext has relatively low dividends and has advantages in asset transactions, but it is still difficult to call cross-chain contracts.

3. Advantages of Telecom Network: The biggest feature of our public chain is the use of Tendermint consensus and the distinction between TPS and blockchain. TPS is high and compatible with EVM operations, including that we can go to the Teleport relay chain or open IBC The channel of the protocol, and the native IBC operation with the Cosmos public chain.

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Multichain – Alfred Xu 

1. There is a point of integration between our cross-chain protocol and the public chain, but everyone's focus is different. For example, Cosmos started to create a cross-chain, public chain, and dApps application support environment from the public chain stage, but their focus is on the relationship between their parachain and sidechain and my layer1 Between the chains, there is a consensus on what level of consensus is reached.

2. Multichain supports two electronic signature algorithms, ECDSA and EdDSA, which account for more than 99% of the entire market share.

3. On different chains, Multichain can complete the interaction between it and other chains in the form of a standard user without the need for the other party's approval. We are now also making corresponding cross-chains for Cosmos, Polkadot and layer 2 of eth, including some other heterogeneous chains.

For more details or to listen to the full version of the interview recording, welcome to visit TYPE V DAO official push.

https://twitter.com/TypeV_Official/status/1550385094803615745?s=20&t=oZhPXfj1CCrBfKJME0qU3g