From 612a5822bad7dd913a404b020e90173192dd56d5 Mon Sep 17 00:00:00 2001
From: Jean-Philippe Raynaud <jp.raynaud@gmail.com>
Date: Fri, 7 Aug 2026 13:35:26 +0200
Subject: [PATCH 1/2] fix(e2e): strengthen concatenation protocol parameters

Scale the two sets to k=274/m=420 and k=283/m=433 (phi_f 0.77) so a
sub-quorum lottery draw can no longer create a blocking epoch gap.
---
 .../mithril-end-to-end/src/mithril/infrastructure.rs        | 4 ++--
 mithril-test-lab/mithril-end-to-end/src/toolkit/exec.rs     | 6 +++---
 2 files changed, 5 insertions(+), 5 deletions(-)

diff --git a/mithril-test-lab/mithril-end-to-end/src/mithril/infrastructure.rs b/mithril-test-lab/mithril-end-to-end/src/mithril/infrastructure.rs
index 15e793b679b..3d6b5679ce6 100644
--- a/mithril-test-lab/mithril-end-to-end/src/mithril/infrastructure.rs
+++ b/mithril-test-lab/mithril-end-to-end/src/mithril/infrastructure.rs
@@ -282,8 +282,8 @@ impl MithrilInfrastructure {
 
         let protocol_parameters_new = match config.aggregate_signature_type {
             AggregateSignatureType::Concatenation => ProtocolParameters {
-                k: 70,
-                m: 105,
+                k: 274,
+                m: 420,
                 phi_f: 0.77,
             },
             AggregateSignatureType::Snark | AggregateSignatureType::IvcSnark => {
diff --git a/mithril-test-lab/mithril-end-to-end/src/toolkit/exec.rs b/mithril-test-lab/mithril-end-to-end/src/toolkit/exec.rs
index 8acc4382e9b..8e165ff7956 100644
--- a/mithril-test-lab/mithril-end-to-end/src/toolkit/exec.rs
+++ b/mithril-test-lab/mithril-end-to-end/src/toolkit/exec.rs
@@ -102,9 +102,9 @@ impl ExecToolkit {
         aggregator.stop().await?;
         let protocol_parameters_new = match aggregate_signature_type {
             AggregateSignatureType::Concatenation => ProtocolParameters {
-                k: 83,
-                m: 130,
-                phi_f: 0.75,
+                k: 283,
+                m: 433,
+                phi_f: 0.77,
             },
             AggregateSignatureType::Snark => ProtocolParameters {
                 k: 7,

From 54443f9260fe4788dc42a3a12c567940807b57f1 Mon Sep 17 00:00:00 2001
From: Jean-Philippe Raynaud <jp.raynaud@gmail.com>
Date: Fri, 7 Aug 2026 15:42:06 +0200
Subject: [PATCH 2/2] chore: upgrade crate versions

* mithril-end-to-end from `0.5.11` to `0.5.12`
---
 Cargo.lock                                     | 2 +-
 mithril-test-lab/mithril-end-to-end/Cargo.toml | 2 +-
 2 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/Cargo.lock b/Cargo.lock
index f2943addb11..37aaa19a061 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -4601,7 +4601,7 @@ dependencies = [
 
 [[package]]
 name = "mithril-end-to-end"
-version = "0.5.11"
+version = "0.5.12"
 dependencies = [
  "anyhow",
  "async-recursion",
diff --git a/mithril-test-lab/mithril-end-to-end/Cargo.toml b/mithril-test-lab/mithril-end-to-end/Cargo.toml
index a86be455a73..e188241b223 100644
--- a/mithril-test-lab/mithril-end-to-end/Cargo.toml
+++ b/mithril-test-lab/mithril-end-to-end/Cargo.toml
@@ -1,6 +1,6 @@
 [package]
 name = "mithril-end-to-end"
-version = "0.5.11"
+version = "0.5.12"
 authors = { workspace = true }
 edition = { workspace = true }
 documentation = { workspace = true }