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Check state shape for i = 0 as well #276

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Merged
winderica merged 1 commit into from
Jun 27, 2026
Merged

Check state shape for i = 0 as well #276

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12 changes: 6 additions & 6 deletions crates/ivc/src/compilers/cyclefold/mod.rs
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Original file line number Diff line number Diff line change
Expand Up @@ -364,12 +364,6 @@ where
current_state: &FC::State,
Proof(W, U, w, u, cf_W, cf_U): &Self::Proof<FC>,
) -> Result<(), Error> {
if i == 0 {
return (initial_state == current_state)
.then_some(())
.ok_or(Error::IVCVerificationFail);
}

// Ensure the prover supplied `initial_state` and `current_state` have
// the same shape as `reference_state`'s, which is exactly what the
// augmented circuit was synthesized for.
Expand All @@ -383,6 +377,12 @@ where
return Err(Error::IVCVerificationFail);
}

if i == 0 {
return (initial_state == current_state)
.then_some(())
.ok_or(Error::IVCVerificationFail);
}

let hash = T::new_with_pp_hash(hash_config.clone(), *pp_hash);
let mut sponge = hash.separate_domain("sponge".as_ref());

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