diff --git a/go.mod b/go.mod
index c7134d5..dd1d522 100644
--- a/go.mod
+++ b/go.mod
@@ -17,7 +17,7 @@ require (
 
 require (
 	github.com/prometheus/client_golang v1.19.0
-	github.com/transparency-dev/formats v0.0.0-20231205184308-949529efd6b3
+	github.com/transparency-dev/formats v0.0.0-20240415152152-3372d765e9e4
 	github.com/transparency-dev/serverless-log v0.0.0-20240408141044-5d483a81bdb7
 	k8s.io/klog/v2 v2.120.1
 )
@@ -26,10 +26,12 @@ require (
 	github.com/beorn7/perks v1.0.1 // indirect
 	github.com/cespare/xxhash/v2 v2.2.0 // indirect
 	github.com/go-logr/logr v1.4.1 // indirect
+	github.com/google/certificate-transparency-go v1.1.8 // indirect
 	github.com/kr/text v0.1.0 // indirect
 	github.com/prometheus/client_model v0.5.0 // indirect
 	github.com/prometheus/common v0.48.0 // indirect
 	github.com/prometheus/procfs v0.12.0 // indirect
-	golang.org/x/sys v0.17.0 // indirect
+	golang.org/x/crypto v0.21.0 // indirect
+	golang.org/x/sys v0.18.0 // indirect
 	google.golang.org/genproto/googleapis/rpc v0.0.0-20240227224415-6ceb2ff114de // indirect
 )
diff --git a/go.sum b/go.sum
index 1cf5cf9..7c6e6c8 100644
--- a/go.sum
+++ b/go.sum
@@ -8,6 +8,8 @@ github.com/davecgh/go-spew v1.1.1 h1:vj9j/u1bqnvCEfJOwUhtlOARqs3+rkHYY13jYWTU97c
 github.com/davecgh/go-spew v1.1.1/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
 github.com/go-logr/logr v1.4.1 h1:pKouT5E8xu9zeFC39JXRDukb6JFQPXM5p5I91188VAQ=
 github.com/go-logr/logr v1.4.1/go.mod h1:9T104GzyrTigFIr8wt5mBrctHMim0Nb2HLGrmQ40KvY=
+github.com/google/certificate-transparency-go v1.1.8 h1:LGYKkgZF7satzgTak9R4yzfJXEeYVAjV6/EAEJOf1to=
+github.com/google/certificate-transparency-go v1.1.8/go.mod h1:bV/o8r0TBKRf1X//iiiSgWrvII4d7/8OiA+3vG26gI8=
 github.com/google/go-cmp v0.6.0 h1:ofyhxvXcZhMsU5ulbFiLKl/XBFqE1GSq7atu8tAmTRI=
 github.com/google/go-cmp v0.6.0/go.mod h1:17dUlkBOakJ0+DkrSSNjCkIjxS6bF9zb3elmeNGIjoY=
 github.com/gorilla/mux v1.8.1 h1:TuBL49tXwgrFYWhqrNgrUNEY92u81SPhu7sTdzQEiWY=
@@ -29,20 +31,22 @@ github.com/prometheus/procfs v0.12.0 h1:jluTpSng7V9hY0O2R9DzzJHYb2xULk9VTR1V1R/k
 github.com/prometheus/procfs v0.12.0/go.mod h1:pcuDEFsWDnvcgNzo4EEweacyhjeA9Zk3cnaOZAZEfOo=
 github.com/rogpeppe/go-internal v1.10.0 h1:TMyTOH3F/DB16zRVcYyreMH6GnZZrwQVAoYjRBZyWFQ=
 github.com/rogpeppe/go-internal v1.10.0/go.mod h1:UQnix2H7Ngw/k4C5ijL5+65zddjncjaFoBhdsK/akog=
-github.com/transparency-dev/formats v0.0.0-20231205184308-949529efd6b3 h1:Mpx9pqc7bKrx2QQxKL3SPbLIGH4gTBR1ZFrNuKq3CcY=
-github.com/transparency-dev/formats v0.0.0-20231205184308-949529efd6b3/go.mod h1:tY9Z9oBaYdQt4NWIhsFAtv0altwLk+K9Gg/2tbS0eBQ=
+github.com/transparency-dev/formats v0.0.0-20240415152152-3372d765e9e4 h1:hpLmCbRJ9rtPsaYuEpVCbdBqdtrmfYAqxjMNGkaP/+s=
+github.com/transparency-dev/formats v0.0.0-20240415152152-3372d765e9e4/go.mod h1:tyFqZYwVHIv/ap0obDip//541gI2TL7SwuWkhlg5WXc=
 github.com/transparency-dev/merkle v0.0.2 h1:Q9nBoQcZcgPamMkGn7ghV8XiTZ/kRxn1yCG81+twTK4=
 github.com/transparency-dev/merkle v0.0.2/go.mod h1:pqSy+OXefQ1EDUVmAJ8MUhHB9TXGuzVAT58PqBoHz1A=
 github.com/transparency-dev/serverless-log v0.0.0-20240408141044-5d483a81bdb7 h1:Caqvx+/b2hpuK5dHLMtKxoNsNhSf6JsT9m+7Xgk1z6Y=
 github.com/transparency-dev/serverless-log v0.0.0-20240408141044-5d483a81bdb7/go.mod h1:A+cQ9EQeah/Ua7JaMOAAKkCfyDZPsq74o+UgwqQEPsQ=
+golang.org/x/crypto v0.21.0 h1:X31++rzVUdKhX5sWmSOFZxx8UW/ldWx55cbf08iNAMA=
+golang.org/x/crypto v0.21.0/go.mod h1:0BP7YvVV9gBbVKyeTG0Gyn+gZm94bibOW5BjDEYAOMs=
 golang.org/x/mod v0.17.0 h1:zY54UmvipHiNd+pm+m0x9KhZ9hl1/7QNMyxXbc6ICqA=
 golang.org/x/mod v0.17.0/go.mod h1:hTbmBsO62+eylJbnUtE2MGJUyE7QWk4xUqPFrRgJ+7c=
-golang.org/x/net v0.21.0 h1:AQyQV4dYCvJ7vGmJyKki9+PBdyvhkSd8EIx/qb0AYv4=
-golang.org/x/net v0.21.0/go.mod h1:bIjVDfnllIU7BJ2DNgfnXvpSvtn8VRwhlsaeUTyUS44=
+golang.org/x/net v0.22.0 h1:9sGLhx7iRIHEiX0oAJ3MRZMUCElJgy7Br1nO+AMN3Tc=
+golang.org/x/net v0.22.0/go.mod h1:JKghWKKOSdJwpW2GEx0Ja7fmaKnMsbu+MWVZTokSYmg=
 golang.org/x/sync v0.7.0 h1:YsImfSBoP9QPYL0xyKJPq0gcaJdG3rInoqxTWbfQu9M=
 golang.org/x/sync v0.7.0/go.mod h1:Czt+wKu1gCyEFDUtn0jG5QVvpJ6rzVqr5aXyt9drQfk=
-golang.org/x/sys v0.17.0 h1:25cE3gD+tdBA7lp7QfhuV+rJiE9YXTcS3VG1SqssI/Y=
-golang.org/x/sys v0.17.0/go.mod h1:/VUhepiaJMQUp4+oa/7Zr1D23ma6VTLIYjOOTFZPUcA=
+golang.org/x/sys v0.18.0 h1:DBdB3niSjOA/O0blCZBqDefyWNYveAYMNF1Wum0DYQ4=
+golang.org/x/sys v0.18.0/go.mod h1:/VUhepiaJMQUp4+oa/7Zr1D23ma6VTLIYjOOTFZPUcA=
 golang.org/x/text v0.14.0 h1:ScX5w1eTa3QqT8oi6+ziP7dTV1S2+ALU0bI+0zXKWiQ=
 golang.org/x/text v0.14.0/go.mod h1:18ZOQIKpY8NJVqYksKHtTdi31H5itFRjB5/qKTNYzSU=
 google.golang.org/genproto/googleapis/rpc v0.0.0-20240227224415-6ceb2ff114de h1:cZGRis4/ot9uVm639a+rHCUaG0JJHEsdyzSQTMX+suY=