Initial Block Download, IBD

Definition

The process used by a new node (or long-offline node) to download a large number of blocks to catch up to the tip of the best block chain.

Synonyms

• Initial block download

• IBD

Not To Be Confused With

• Blocks-first sync (syncing includes getting any amount of blocks; IBD is only used for large numbers of blocks)

Links

• Initial block download — Bitcoin.org Developer Guide