About storing information on blocks?

The method of storing information on the blockchain: call the API provided by the blockchain platform.

General blockchain platforms will provide corresponding interfaces, such as RPC, JSON-RPC, HTTP, etc. Of course, different platforms have different degrees of friendliness.

Some companies that specialize in API, such as BlockCypher, can provide friendly call interfaces, and it is not very convenient to write answers on mobile phones. Search it.

As for the content of storage, it is added that in the file hash record chain, in addition to conventional cloud storage, file entities also have storage schemes based on blockchain, such as ipfs and storej.