diff --git a/examples/acceptance_tests/051/aiken.lock b/examples/acceptance_tests/051/aiken.lock
new file mode 100644
index 00000000..3a78b1e7
--- /dev/null
+++ b/examples/acceptance_tests/051/aiken.lock
@@ -0,0 +1,5 @@
+# This file was generated by Aiken
+# You typically do not need to edit this file
+
+requirements = []
+packages = []
diff --git a/examples/acceptance_tests/051/aiken.toml b/examples/acceptance_tests/051/aiken.toml
new file mode 100644
index 00000000..6ee31af0
--- /dev/null
+++ b/examples/acceptance_tests/051/aiken.toml
@@ -0,0 +1,3 @@
+name = 'aiken-lang/acceptance_test_051'
+version = '0.0.0'
+description = ''
diff --git a/examples/acceptance_tests/051/lib/tests.ak b/examples/acceptance_tests/051/lib/tests.ak
new file mode 100644
index 00000000..3a38dc20
--- /dev/null
+++ b/examples/acceptance_tests/051/lib/tests.ak
@@ -0,0 +1,27 @@
+use aiken/builtin
+
+test ecdsa() {
+  let public_key =
+    #"02c66e7d8966b5c555af5805989da9fbf8db95e15631ce358c3a1710c962679063"
+
+  let message =
+    #"aadf7de782034fbe3d3db2cb13c0cd91bf41cb08fac7bd61d54453cf6e82b450"
+
+  let signature =
+    #"dc4dc264a9fef17a3f253449cf8c397ab6f16fb3d63d86940b5586823dfd02ae3b461bb4336b5ecbaefd6627aa922efc048fec0c881c10c4c9428fca69c132a2"
+
+  builtin.verify_ecdsa_secp256k1_signature(public_key, message, signature)
+}
+
+test schnorr() {
+  let public_key =
+    #"b33cc9edc096d0a83416964bd3c6247b8fecd256e4efa7870d2c854bdeb33390"
+
+  let message =
+    #"e48441762fb75010b2aa31a512b62b4148aa3fb08eb0765d76b252559064a614"
+
+  let signature =
+    #"6470fd1303dda4fda717b9837153c24a6eab377183fc438f939e0ed2b620e9ee5077c4a8b8dca28963d772a94f5f0ddf598e1c47c137f91933274c7c3edadce8"
+
+  builtin.verify_schnorr_secp256k1_signature(public_key, message, signature)
+}