Tech: Block Receipts Reminder

[andy-shi88]

Description

When receiving a block, pay attention to the receipt merkle root that is in the block. If the receiving node has the merkle root that are included in the block, take note somewhere (could be in memory [as array of rmr]) and use those referenced rmr as criteria for picking receipts to publish when it's its turn to smith.

Breakdown

• In receive block, check the receipts published.
• If one or few of the receipts, memorize the rmr so that we know what are the rmr that have been published in the blocks and we can pick the correct receipt to get linked receipt point later.

*note: the block structure should have already has the receipts fields.

need #255 to be finished first, since we need to take look at the receipt.

[andy-shi88]

question: should we store the reminder block in-memory or better in some persistance storage?

[andy-shi88]

will store the reminder in embedded key-value database. Using badgerDB