[basic_bitcoin]BRC-20 Inscription Not Indexed on Testnet4

[tuminfei]

In the rust/basic_bitcoin module

Description:

I have deployed a BRC-20 token on Bitcoin Testnet4 using the inscribe_brc20 function. The commit and reveal transactions were successfully broadcasted and confirmed. However, the inscription does not appear in the indexer's records, and the token is not recognized on platforms like mempool.space/testnet4.

Steps to Reproduce:

Call the inscribe_brc20 function with a 4-character ticker symbol.
Broadcast the commit transaction to the Bitcoin Testnet4 network.
Broadcast the reveal transaction after the commit transaction is confirmed.
Check the inscription status on mempool.space/testnet4.

I initially suspected that two transactions were being sent to the network at the same time. I changed the reveal transaction to send it after committing the transaction, but it still didn't work.

[tuminfei]

https://mempool.space/zh/testnet4/tx/c79d428a3bce01c4db7527ce4faf67c22da20ec7b01ff2513c660abe9301b679

[tuminfei]

The above problem can be fixed by modifying the "Content type field number" in the protocol.