Item Commitment
The first Truestamp commitment event: an item's item_hash becomes a Merkle-tree leaf in a finalized block, recorded with a compact inclusion proof, moving the item to the committed state and proving it was submitted within that block's submission window.
Overview
Item Commitment is the first of Truestamp’s two commitment
events: an item’s item_hash becomes a leaf in the Merkle tree of a finalized Truestamp
block. The inclusion is recorded with a compact
Merkle inclusion proof, and the item transitions to its
committed state, as described in the item lifecycle. Item
Commitment proves the item was submitted within the block’s submission window, but it
says nothing about public blockchains; the external witness comes later, from
Block Commitment. Both events, and why a complete proof
needs both, are covered in
Item Commitment vs Block Commitment.