Shout-out to @Gabriel-Trintinalia for discovering this issue. The gist
of it as follows:
When processing a block, we should provide the parent block as well as
the last 256 block hashes. Some of these parents data (specifically the
hash) was incorrect because even though during the processing of the
parent block we have updated the header, that header was not updating
the TransactionsRoot and ReceiptsRoot fields (types.NewBlock makes a new
copy of the header and changes it only on that instance).
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Co-authored-by: lightclient <lightclient@protonmail.com>