Enacted VS Imported VS Omitted

When Foundry or CodeChain receives a block, that block will be imported, and it can be enacted. The rest of the blocks can be omitted.

What is the import

We say "Foundry imports a block" when Foundry verifies, executes, and saves the block in the disk and updates its best chain.

Definition

Enacted

Enacted blocks are blocks that are appended in the best chain.

Imported

Imported blocks are blocks that have been imported.

Omitted

Omitted blocks are blocks that were in the best chain, but are not anymore.

Example

Let's assume that Foundry receives block A and imported it. If block A is included in the best chain (A became the new best block), we can say that "block A is enacted". We can also say that "block A is imported".

Let's assume that Foundry receives proposal block B and imports it. Block B is now imported.

The third example assumes the PoW consensus. Let's assume that Foundry received block C.

Before importing it, the best chain was:

X → Y → Z

After importing it, the best chain became:

X -> K -> L -> C

Then K, L, and C is enacted. C is imported. Y, and Z is omitted.