1.The challenge for modern blockchain data stack
There are several challenges that a modern blockchain indexing startup may face, including:
Massive amounts of data. As the amount of data on the blockchain increases, the data index will need to scale up to handle the increased load and provide efficient access to the data. Consequently, it leads to higher storage costs, slow metrics calculation, and increased load on the database server.
Complex data processing pipeline. Blockchain technology is complex, and building a comprehensive and reliable data index requires a deep understanding of the underlying data structures and algorithms. The diversity of blockchain implementations inherits it. Given specific examples, NFTs in Ethereum are usually created within smart contracts following the ERC721 and ERC1155 formats. In contrast, the implementation of those on Polkadot, for instance, is usually built directly within blockchain runtime. Those should be considered NFTs and should be saved
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