diff --git a/sdk_container/src/third_party/portage-stable/dev-libs/libpipeline/Manifest b/sdk_container/src/third_party/portage-stable/dev-libs/libpipeline/Manifest
index 8839976f0e..05e4b9daac 100644
--- a/sdk_container/src/third_party/portage-stable/dev-libs/libpipeline/Manifest
+++ b/sdk_container/src/third_party/portage-stable/dev-libs/libpipeline/Manifest
@@ -1 +1,2 @@
 DIST libpipeline-1.5.8.tar.gz 1070254 BLAKE2B 1feb1a9493fd0850b4e3e446619e7e042bd97d8c0bbb3e13a91d90d6cde3ca2c17fb8a3ca256f65291dadc4d8703ad5d3a795839bf8280adc4547b3ec3d2da7d SHA512 0ae94df4bd508f0e664fa5430687d64904c60d69d9565c18cacb70251f8653cb7c571325d1406c859fdd149048adce8c4b3bf028573064496d7da3436e27b9b0
+DIST libpipeline-1.5.8.tar.gz.asc 833 BLAKE2B a40bdddc43258f2f8f34ea2336d1d30ad5b9ce3740e86f84b259b06be6bbf5551617784d79e44fe2a522083e8e70a10b66934d75f9acf4827710b54ea04ffa9c SHA512 d8feb32c3344b7e1d95469a34bf2d23d194556c4ef3821d61fc4bc3b9368d5cf5c5261ab759034fcf4cf341b704f0ee685f842cf407671b0ec3f3c56f1a5b260
diff --git a/sdk_container/src/third_party/portage-stable/dev-libs/libpipeline/libpipeline-1.5.8.ebuild b/sdk_container/src/third_party/portage-stable/dev-libs/libpipeline/libpipeline-1.5.8.ebuild
index 220a89b822..dc79242ab2 100644
--- a/sdk_container/src/third_party/portage-stable/dev-libs/libpipeline/libpipeline-1.5.8.ebuild
+++ b/sdk_container/src/third_party/portage-stable/dev-libs/libpipeline/libpipeline-1.5.8.ebuild
@@ -1,22 +1,29 @@
-# Copyright 1999-2025 Gentoo Authors
+# Copyright 1999-2026 Gentoo Authors
 # Distributed under the terms of the GNU General Public License v2
 
 EAPI=8
 
-inherit libtool
+VERIFY_SIG_OPENPGP_KEY_PATH=/usr/share/openpgp-keys/cjwatson.asc
+inherit libtool verify-sig
 
-DESCRIPTION="A pipeline manipulation library"
+DESCRIPTION="Pipeline manipulation library"
 HOMEPAGE="https://libpipeline.nongnu.org/"
-SRC_URI="mirror://nongnu/${PN}/${P}.tar.gz"
+SRC_URI="
+	mirror://nongnu/${PN}/${P}.tar.gz
+	verify-sig? ( mirror://nongnu/${PN}/${P}.tar.gz.asc )
+"
 
 LICENSE="GPL-3"
 SLOT="0"
-KEYWORDS="~alpha amd64 arm arm64 ~hppa ~loong ~m68k ~mips ppc ppc64 ~riscv ~s390 ~sparc x86 ~amd64-linux ~x86-linux ~arm64-macos ~ppc-macos ~x64-macos ~x64-solaris"
+KEYWORDS="~alpha amd64 arm arm64 ~hppa ~loong ~m68k ~mips ppc ppc64 ~riscv ~s390 ~sparc x86 ~arm64-macos ~x64-macos ~x64-solaris"
 IUSE="test"
 RESTRICT="!test? ( test )"
 
 DEPEND="test? ( dev-libs/check )"
-BDEPEND="virtual/pkgconfig"
+BDEPEND="
+	virtual/pkgconfig
+	verify-sig? ( sec-keys/openpgp-keys-cjwatson )
+"
 
 src_prepare() {
 	default