1 files changed, 38 insertions, 0 deletions
diff --git a/ledger/ledgercore/onlineacct.go b/ledger/ledgercore/onlineacct.go
new file mode 100644
index 000000000..de786e9be
--- /dev/null
+++ b/ledger/ledgercore/onlineacct.go
@@ -0,0 +1,38 @@
+// Copyright (C) 2019-2021 Algorand, Inc.
+// This file is part of go-algorand
+//
+// go-algorand is free software: you can redistribute it and/or modify
+// it under the terms of the GNU Affero General Public License as
+// published by the Free Software Foundation, either version 3 of the
+// License, or (at your option) any later version.
+//
+// go-algorand is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU Affero General Public License for more details.
+//
+// You should have received a copy of the GNU Affero General Public License
+// along with go-algorand.  If not, see <https://www.gnu.org/licenses/>.
+
+package ledgercore
+
+import (
+	"github.com/algorand/go-algorand/crypto"
+	"github.com/algorand/go-algorand/data/basics"
+)
+
+// An OnlineAccount corresponds to an account whose AccountData.Status
+// is Online.  This is used for a Merkle tree commitment of online
+// accounts, which is subsequently used to validate participants for
+// a compact certificate.
+type OnlineAccount struct {
+	// These are a subset of the fields from the corresponding AccountData.
+	Address                 basics.Address
+	MicroAlgos              basics.MicroAlgos
+	RewardsBase             uint64
+	NormalizedOnlineBalance uint64
+	VoteID                  crypto.OneTimeSignatureVerifier
+	VoteFirstValid          basics.Round
+	VoteLastValid           basics.Round
+	VoteKeyDilution         uint64
+}