diff --git a/cmd/fsd/main.go b/cmd/fsd/main.go
index 562c199..8227497 100644
--- a/cmd/fsd/main.go
+++ b/cmd/fsd/main.go
@@ -12,7 +12,6 @@ import (
 	"syscall"
 
 	"github.com/libp2p/go-libp2p/core/crypto"
-	"github.com/libp2p/go-libp2p/core/peer"
 	"go.sia.tech/fsd/build"
 	"go.sia.tech/fsd/config"
 	shttp "go.sia.tech/fsd/http"
@@ -99,7 +98,7 @@ func main() {
 	}
 	defer ds.Close()
 
-	privateKey, publicKey, _ := crypto.GenerateEd25519Key(frand.Reader)
+	privateKey, _, _ := crypto.GenerateEd25519Key(frand.Reader)
 	store := ipfs.NewRenterdBlockStore(ds, cfg.Renterd)
 
 	node, err := ipfs.NewNode(ctx, privateKey, cfg.IPFS, store)
@@ -142,13 +141,8 @@ func main() {
 		}
 	}()
 
-	peerID, err := peer.IDFromPublicKey(publicKey)
-	if err != nil {
-		log.Fatal("failed to get peer id", zap.Error(err))
-	}
-
 	log.Info("fsd started",
-		zap.Stringer("peerID", peerID),
+		zap.Stringer("peerID", node.PeerID()),
 		zap.String("apiAddress", apiListener.Addr().String()),
 		zap.String("gatewayAddress", gatewayListener.Addr().String()),
 		zap.String("version", build.Version()),
diff --git a/ipfs/node.go b/ipfs/node.go
index 81ac74b..f351b8a 100644
--- a/ipfs/node.go
+++ b/ipfs/node.go
@@ -32,6 +32,7 @@ var bootstrapPeers = []peer.AddrInfo{
 	mustParsePeer("/ip4/104.131.131.82/udp/4001/quic/p2p/QmaCpDMGvV2BGHeYERUEnRQAwe3N8SzbUtfsmvsqQLuvuJ"),
 }
 
+// A Node is a minimal IPFS node
 type Node struct {
 	dht  *kdht.IpfsDHT
 	host host.Host
@@ -42,6 +43,7 @@ type Node struct {
 	bitswap      *bitswap.Bitswap
 }
 
+// Close closes the node
 func (n *Node) Close() error {
 	n.dht.Close()
 	n.bitswap.Close()
@@ -80,6 +82,7 @@ func mustParsePeer(s string) peer.AddrInfo {
 	return *info
 }
 
+// NewNode creates a new IPFS node
 func NewNode(ctx context.Context, privateKey crypto.PrivKey, cfg config.IPFS, blockstore blockstore.Blockstore) (*Node, error) {
 	cmgr, err := connmgr.NewConnManager(600, 900)
 	if err != nil {
diff --git a/ipfs/node_test.go b/ipfs/node_test.go
index ee75536..4d68184 100644
--- a/ipfs/node_test.go
+++ b/ipfs/node_test.go
@@ -162,6 +162,7 @@ func TestTest(t *testing.T) {
 	downloadCtx, cancel := context.WithTimeout(ctx, 15*time.Second)
 	defer cancel()
 
+	// note: this currently only downloads the root CID. Need to walk the DAG
 	r, err := node.DownloadCID(downloadCtx, c)
 	if err != nil {
 		t.Fatal(err)
diff --git a/ipfs/store.go b/ipfs/store.go
index e5afab7..681514c 100644
--- a/ipfs/store.go
+++ b/ipfs/store.go
@@ -13,14 +13,19 @@ import (
 	"go.uber.org/zap"
 )
 
-// A Store implements the IPFS blockstore interface
 type (
+	// A Store is a persistent store for IPFS blocks
 	Store interface {
 		GetBlock(ctx context.Context, c cid.Cid) (Block, error)
 		HasBlock(ctx context.Context, c cid.Cid) (bool, error)
 		AllKeysChan(ctx context.Context) (<-chan cid.Cid, error)
 	}
 
+	// A RenterdBlockStore is a blockstore backed by a renterd node IPFS blocks
+	// are stored in a local database and backed by a renterd node. The primary
+	// difference between this and a normal IPFS blockstore is that an object is
+	// stored on the renterd node in one piece and the offsets for each block
+	// are stored in the database.
 	RenterdBlockStore struct {
 		store   Store
 		log     *zap.Logger