diff --git a/cmd/collect_yellowstone_rawtx_binary/main.go b/cmd/collect_yellowstone_rawtx_binary/main.go
new file mode 100644
index 0000000..a72bdd6
--- /dev/null
+++ b/cmd/collect_yellowstone_rawtx_binary/main.go
@@ -0,0 +1,302 @@
+package main
+
+import (
+	"context"
+	"flag"
+	"fmt"
+	"io"
+	"os"
+	"os/signal"
+	"path/filepath"
+	"sort"
+	"syscall"
+	"time"
+
+	"github.com/gagliardetto/solana-go"
+	pump_parser "github.com/thloyi/pump-parser"
+	pb "go.onsig.ai/onsig/yellowstone-proto"
+	"google.golang.org/grpc"
+	"google.golang.org/grpc/credentials"
+	"google.golang.org/grpc/credentials/insecure"
+	"google.golang.org/grpc/keepalive"
+	"google.golang.org/grpc/metadata"
+)
+
+type collector struct {
+	endpoint  string
+	xToken    string
+	plaintext bool
+
+	blocks map[uint64][]pump_parser.RawTx
+	seen   map[string]struct{}
+
+	totalUpdates uint64
+	txUpdates    uint64
+	savedNonVote uint64
+	duplicates   uint64
+	voteFiltered uint64
+	convertErrs  uint64
+	reconnects   uint64
+
+	firstSlot uint64
+	lastSlot  uint64
+}
+
+func main() {
+	var (
+		endpoint  = flag.String("endpoint", "ams.rpc.orbitflare.com:10000", "Yellowstone gRPC endpoint")
+		xToken    = flag.String("x-token", os.Getenv("YELLOWSTONE_X_TOKEN"), "Yellowstone x-token; defaults to YELLOWSTONE_X_TOKEN")
+		duration  = flag.Duration("duration", 5*time.Minute, "collection duration")
+		output    = flag.String("output", "", "output .prbs file path")
+		plaintext = flag.Bool("plaintext", true, "use plaintext gRPC instead of TLS")
+	)
+	flag.Parse()
+
+	if *xToken == "" {
+		exitf("missing -x-token or YELLOWSTONE_X_TOKEN")
+	}
+	if *duration <= 0 {
+		exitf("-duration must be positive")
+	}
+	if *output == "" {
+		*output = filepath.Join("testdata", "rawtx-binary", fmt.Sprintf("rawtx-yellowstone-%s.prbs", time.Now().Format("20060102-150405")))
+	}
+
+	ctx, stop := signal.NotifyContext(context.Background(), os.Interrupt, syscall.SIGTERM)
+	defer stop()
+	ctx, cancel := context.WithTimeout(ctx, *duration)
+	defer cancel()
+
+	c := &collector{
+		endpoint:  *endpoint,
+		xToken:    *xToken,
+		plaintext: *plaintext,
+		blocks:    make(map[uint64][]pump_parser.RawTx),
+		seen:      make(map[string]struct{}),
+	}
+
+	started := time.Now()
+	done := make(chan error, 1)
+	go func() {
+		done <- c.run(ctx)
+	}()
+
+	ticker := time.NewTicker(30 * time.Second)
+	defer ticker.Stop()
+
+loop:
+	for {
+		select {
+		case err := <-done:
+			if err != nil {
+				exitf("%v", err)
+			}
+			break loop
+		case <-ctx.Done():
+			if err := <-done; err != nil {
+				exitf("%v", err)
+			}
+			break loop
+		case <-ticker.C:
+			c.printProgress(started)
+		}
+	}
+
+	encoded, decodedCount, err := encodeAndVerify(c.blocks)
+	if err != nil {
+		exitf("raw tx binary encode/decode: %v", err)
+	}
+	if decodedCount != int(c.savedNonVote) {
+		exitf("decoded tx count mismatch: got=%d want=%d", decodedCount, c.savedNonVote)
+	}
+	if err := os.MkdirAll(filepath.Dir(*output), 0o755); err != nil {
+		exitf("mkdir output dir: %v", err)
+	}
+	if err := os.WriteFile(*output, encoded, 0o644); err != nil {
+		exitf("write output: %v", err)
+	}
+
+	fmt.Printf("output=%s\n", *output)
+	fmt.Printf("duration=%s elapsed=%s\n", *duration, time.Since(started).Truncate(time.Second))
+	fmt.Printf("updates=%d tx_updates=%d converted_nonvote=%d duplicate=%d vote_filtered=%d convert_err=%d reconnects=%d\n",
+		c.totalUpdates, c.txUpdates, c.savedNonVote, c.duplicates, c.voteFiltered, c.convertErrs, c.reconnects)
+	fmt.Printf("slots=%d first_slot=%d last_slot=%d decoded=%d\n", len(c.blocks), c.firstSlot, c.lastSlot, decodedCount)
+	fmt.Printf("bytes=%d bytes_per_tx=%.2f\n", len(encoded), float64(len(encoded))/float64(max(int(c.savedNonVote), 1)))
+}
+
+func (c *collector) run(ctx context.Context) error {
+	for ctx.Err() == nil {
+		if err := c.recvOnce(ctx); err != nil && ctx.Err() == nil {
+			c.reconnects++
+			fmt.Fprintf(os.Stderr, "stream_err reconnect=%d err=%v\n", c.reconnects, err)
+			time.Sleep(time.Second)
+			continue
+		}
+		if ctx.Err() == nil {
+			c.reconnects++
+			time.Sleep(time.Second)
+		}
+	}
+	return nil
+}
+
+func (c *collector) recvOnce(ctx context.Context) error {
+	conn, err := grpc.NewClient(
+		c.endpoint,
+		c.transportOption(),
+		grpc.WithKeepaliveParams(keepalive.ClientParameters{
+			Time:                10 * time.Second,
+			Timeout:             time.Second,
+			PermitWithoutStream: true,
+		}),
+		grpc.WithDefaultCallOptions(grpc.MaxCallRecvMsgSize(64*1024*1024)),
+	)
+	if err != nil {
+		return err
+	}
+	defer conn.Close()
+
+	ctx = metadata.NewOutgoingContext(ctx, metadata.New(map[string]string{"x-token": c.xToken}))
+	stream, err := pb.NewGeyserClient(conn).Subscribe(ctx)
+	if err != nil {
+		return err
+	}
+
+	vote := false
+	subscription := &pb.SubscribeRequest{
+		Transactions: map[string]*pb.SubscribeRequestFilterTransactions{
+			"nonvote": {Vote: &vote},
+		},
+	}
+	if err := stream.Send(subscription); err != nil {
+		return err
+	}
+
+	for {
+		resp, err := stream.Recv()
+		if err != nil {
+			if err == io.EOF || ctx.Err() != nil {
+				return nil
+			}
+			return err
+		}
+		c.totalUpdates++
+		txn := resp.GetTransaction()
+		if txn == nil {
+			continue
+		}
+		c.txUpdates++
+
+		created := time.Now().Unix()
+		if resp.GetCreatedAt() != nil {
+			created = resp.GetCreatedAt().Seconds
+		}
+		rawTx, err := pump_parser.ConvertYellowstoneGrpcTransactionToSolanaTransaction(txn, created)
+		if err != nil {
+			c.convertErrs++
+			continue
+		}
+		txHash := rawTx.TxHash()
+		if txHash != "" {
+			if _, exists := c.seen[txHash]; exists {
+				c.duplicates++
+				continue
+			}
+			c.seen[txHash] = struct{}{}
+		}
+		if c.firstSlot == 0 || rawTx.Slot < c.firstSlot {
+			c.firstSlot = rawTx.Slot
+		}
+		if rawTx.Slot > c.lastSlot {
+			c.lastSlot = rawTx.Slot
+		}
+		if isVoteTx(rawTx) {
+			c.voteFiltered++
+			continue
+		}
+		c.blocks[rawTx.Slot] = append(c.blocks[rawTx.Slot], *rawTx)
+		c.savedNonVote++
+	}
+}
+
+func (c *collector) transportOption() grpc.DialOption {
+	if c.plaintext {
+		return grpc.WithTransportCredentials(insecure.NewCredentials())
+	}
+	return grpc.WithTransportCredentials(credentials.NewClientTLSFromCert(nil, ""))
+}
+
+func (c *collector) printProgress(started time.Time) {
+	fmt.Fprintf(os.Stderr,
+		"progress elapsed=%s updates=%d tx_updates=%d saved_nonvote=%d slots=%d duplicate=%d vote_filtered=%d convert_err=%d reconnects=%d\n",
+		time.Since(started).Truncate(time.Second),
+		c.totalUpdates,
+		c.txUpdates,
+		c.savedNonVote,
+		len(c.blocks),
+		c.duplicates,
+		c.voteFiltered,
+		c.convertErrs,
+		c.reconnects,
+	)
+}
+
+func encodeAndVerify(blocks map[uint64][]pump_parser.RawTx) ([]byte, int, error) {
+	slots := make([]uint64, 0, len(blocks))
+	for slot := range blocks {
+		slots = append(slots, slot)
+	}
+	sort.Slice(slots, func(i, j int) bool { return slots[i] < slots[j] })
+
+	ordered := make([][]pump_parser.RawTx, 0, len(slots))
+	for _, slot := range slots {
+		txs := blocks[slot]
+		blockTime := int64(0)
+		if len(txs) > 0 {
+			blockTime = txs[0].BlockTime
+		}
+		for i := range txs {
+			txs[i].BlockTime = blockTime
+		}
+		ordered = append(ordered, txs)
+	}
+
+	encoded, err := pump_parser.EncodeRawTxBlocksBinary(ordered)
+	if err != nil {
+		return nil, 0, err
+	}
+	decoded, err := pump_parser.DecodeRawTxBlocksBinary(encoded)
+	if err != nil {
+		return nil, 0, err
+	}
+	decodedCount := 0
+	for _, block := range decoded {
+		decodedCount += len(block)
+	}
+	return encoded, decodedCount, nil
+}
+
+func isVoteTx(tx *pump_parser.RawTx) bool {
+	if tx == nil {
+		return false
+	}
+	accountList := tx.GetAccountList()
+	for _, instr := range tx.Transaction.Message.Instructions {
+		if instr.ProgramIDIndex >= 0 && instr.ProgramIDIndex < len(accountList) && accountList[instr.ProgramIDIndex] == solana.VoteProgramID {
+			return true
+		}
+	}
+	return false
+}
+
+func max(a, b int) int {
+	if a > b {
+		return a
+	}
+	return b
+}
+
+func exitf(format string, args ...any) {
+	fmt.Fprintf(os.Stderr, format+"\n", args...)
+	os.Exit(1)
+}