DApp · NFT

Multi-chain casting

An NFT marketplace where royalties are executed

PeriodAbout 1 month

Business LineNFT trading marketplace

Core StackSolidity / IPFS / The Graph / React

RegionChina

Project Background and Challenges

Clients need an NFT trading platform that supports multiple chains, covering minting, listing orders, royalty distribution, and batch operations. The challenge is not the minting of NFTs themselves, but the reliable execution of creator royalties in the secondary market—many platforms treat royalties as "suggestions" to compete, harming creators.

At the same time, gas optimization is underwayThis is crucial for NFT transactions, with every order/cancellation/purchase involving Gas, and the difference in experience directly affects user retention.

The scope we undertake

Minting contracts, market contracts, royalty distribution mechanisms, batch operations, IPFS storage, subgraph indexing, frontend.

Scope 1

Contract casting

Scope 2

Market contracts

Scope 3

Royalty distribution mechanism

Scope 4

Batch operation

Scope 5

IPFS storage

Scope 6

Submap index

Scope 7

Front-end

Technology stack

Contract

Solidity NFT + marketplace contracts

Storage

IPFS asset storage

Index

The Graph is an on-chain event index for child graphs

Front-end

React multi-chain trading interface

Key technical decisions

Decision 01

Royalties are mandatoryvsSuggestion

Choosing contracts to enforce royalty distribution ensures creators' earnings on-chain, without relying on platform self-awareness.

Decision 02

Gas optimization

Bulk contract operations and optimized gas paths for pending/canceling orders reduce actual costs for users.

Decision 03

Multi-chain consistency

Multi-chain contract deployment maintains consistent behavior, and cross-chain NFT metadata is handled with compatibility.

Delivery Success (Desensitization)

5+ bars

Deploy the number of chains

↓10%

Gas optimization range

100%

Royalty contracts are mandatory

Teams and cycles

The total cycle is about 20 days, involving 6 people, and is progressed in four phases:

Market mechanism design

Contract development

Indexing and frontend

Audit and online service

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