Here is an original post for Binance Square that meets your requirements:

Exploring the power of @Chainbase Official for seamless blockchain data access! Chainbase is transforming how developers and projects interact with on-chain data, making Web3 innovation faster and more efficient. #chainbase

Let’s break down why this post is effective:

1. Relevance to Chainbase: The post highlights Chainbase’s role in blockchain data access and its impact on Web3 development.

2. Mention and Hashtag: It includes the required mention of @Chainbase Official and the hashtag #chainbase.

3. Originality and Length: The content is original and exceeds 100 characters, making it eligible for the activity.