Function substance_view

atomic-canonical/src/proof.rs:91–107

The value covered by the *substance* hash (`intentSubstanceHash`): the reviewable definition of an intent, with all review **state** and authorship/proof **metadata** removed. It extends [`hashing_view`] (which already drops `proof` + `contentHash`) by additionally stripping the top-level `status` and `attributedTo`, and, from every element of `hasAcceptanceCriterion`, the review-state keys in [`A

(value: &Value)

/// *meaning* changes and holds steady while it is merely being reviewed or
/// attested.
pub fn substance_view(value: &Value) -> Value {
    let mut value = hashing_view(value);
    if let Some(obj) = value.as_object_mut() {
        obj.remove(PROP_STATUS);
        obj.remove(PROP_ATTRIBUTED_TO);
        if let Some(Value::Array(acs)) = obj.get_mut(PROP_HAS_ACCEPTANCE_CRITERION) {
            for ac in acs.iter_mut() {
                if let Some(ac_obj) = ac.as_object_mut() {
                    for key in AC_REVIEW_STATE_KEYS {
                        ac_obj.remove(*key);
                    }
                }
            }
        }
    }
    value
}

/// Generic attest over a JSON-LD value — the *one* canonicalization/signing
/// path all typed nodes share. Fills `attributedTo` (from the identity's