diff --git a/cmd/radiance/blockstore/verifydata/verifydata.go b/cmd/radiance/blockstore/verifydata/verifydata.go
index a41590a..ba94fd3 100644
--- a/cmd/radiance/blockstore/verifydata/verifydata.go
+++ b/cmd/radiance/blockstore/verifydata/verifydata.go
@@ -2,6 +2,7 @@ package verifydata
 
 import (
 	"context"
+	"io"
 	"os"
 	"runtime"
 	"sync/atomic"
@@ -9,7 +10,10 @@ import (
 
 	"github.com/certusone/radiance/pkg/blockstore"
 	"github.com/linxGnu/grocksdb"
+	"github.com/mattn/go-isatty"
 	"github.com/spf13/cobra"
+	"github.com/vbauerster/mpb/v8"
+	"github.com/vbauerster/mpb/v8/decor"
 	"golang.org/x/sync/errgroup"
 	"k8s.io/klog/v2"
 )
@@ -74,32 +78,60 @@ func run(c *cobra.Command, args []string) {
 
 	// stats trackers
 	var numSuccess atomic.Uint64
+	var numSkipped atomic.Uint64
 	var numFailure atomic.Uint32
 
 	// application lifetime
-	ctx := c.Context()
-	ctx, cancel := context.WithCancel(ctx)
+	rootCtx := c.Context()
+	ctx, cancel := context.WithCancel(rootCtx)
 	defer cancel()
 	group, ctx := errgroup.WithContext(ctx)
 
 	stats := func() {
-		klog.Infof("[stats] good=%d bad=%d", numSuccess.Load(), numFailure.Load())
+		klog.Infof("[stats] good=%d skipped=%d bad=%d",
+			numSuccess.Load(), numSkipped.Load(), numFailure.Load())
+	}
+
+	var barOutput io.Writer
+	isAtty := isatty.IsTerminal(os.Stderr.Fd())
+	if isAtty {
+		barOutput = os.Stderr
+	} else {
+		barOutput = io.Discard
+	}
+
+	progress := mpb.NewWithContext(ctx, mpb.WithOutput(barOutput))
+	bar := progress.New(int64(total), mpb.BarStyle(),
+		mpb.PrependDecorators(
+			decor.Spinner(nil),
+			decor.CurrentNoUnit(" %d"),
+			decor.TotalNoUnit(" / %d slots"),
+			decor.NewPercentage(" (% d)"),
+		),
+		mpb.AppendDecorators(
+			decor.Name("eta="),
+			decor.AverageETA(decor.ET_STYLE_GO),
+		))
+
+	if isAtty {
+		klog.LogToStderr(false)
+		klog.SetOutput(progress)
 	}
 
 	statInterval := *flagStatIvl
 	if statInterval > 0 {
 		ticker := time.NewTicker(statInterval)
-		group.Go(func() error {
+		go func() {
 			defer ticker.Stop()
 			for {
 				select {
 				case <-ctx.Done():
-					return nil
+					return
 				case <-ticker.C:
 					stats()
 				}
 			}
-		})
+		}()
 	}
 
 	for i := uint(0); i < workers; i++ {
@@ -114,9 +146,13 @@ func run(c *cobra.Command, args []string) {
 			break
 		}
 
+		klog.Infof("[worker %d]: range=[%d:%d]", i, wLo, wHi)
 		w := &worker{
+			id:          i,
+			bar:         bar,
 			stop:        wHi,
 			numSuccess:  &numSuccess,
+			numSkipped:  &numSkipped,
 			numFailures: &numFailure,
 			maxFailures: *flagMaxErrs,
 		}
@@ -131,9 +167,12 @@ func run(c *cobra.Command, args []string) {
 	if err := group.Wait(); err != nil {
 		klog.Errorf("Aborting: %s", err)
 		exitCode = 1
-	} else {
+	} else if err = rootCtx.Err(); err == nil {
 		klog.Info("Done!")
 		exitCode = 0
+	} else {
+		klog.Infof("Aborted: %s", err)
+		exitCode = 1
 	}
 
 	stats()
diff --git a/cmd/radiance/blockstore/verifydata/worker.go b/cmd/radiance/blockstore/verifydata/worker.go
index 0f452ac..f1a5370 100644
--- a/cmd/radiance/blockstore/verifydata/worker.go
+++ b/cmd/radiance/blockstore/verifydata/worker.go
@@ -4,25 +4,33 @@ import (
 	"context"
 	"fmt"
 	"sync/atomic"
+	"time"
 
 	"github.com/certusone/radiance/pkg/blockstore"
 	"github.com/linxGnu/grocksdb"
+	"github.com/vbauerster/mpb/v8"
 	"k8s.io/klog/v2"
 )
 
 // worker does a single pass over blockstore.CfMeta and blockstore.CfDataShred concurrently.
 type worker struct {
+	id    uint
 	meta  *grocksdb.Iterator
 	shred *grocksdb.Iterator
 	// Slot range
-	stop uint64
+	current uint64
+	stop    uint64
+	ts      time.Time
 
+	bar         *mpb.Bar
 	numSuccess  *atomic.Uint64
+	numSkipped  *atomic.Uint64
 	numFailures *atomic.Uint32
 	maxFailures uint32
 }
 
 func (w *worker) init(db *blockstore.DB, start uint64) {
+	w.current = start
 	w.meta = db.DB.NewIteratorCF(grocksdb.NewDefaultReadOptions(), db.CfMeta)
 	w.shred = db.DB.NewIteratorCF(grocksdb.NewDefaultReadOptions(), db.CfDataShred)
 	slotKey := blockstore.MakeSlotKey(start)
@@ -62,9 +70,12 @@ func (w *worker) readSlot() (shouldContinue bool) {
 	// Remember failure and increment failure counter before returning.
 	var metaSlot uint64
 	success := false
+	var isFull bool
 	defer func() {
+		if !isFull {
+			return
+		}
 		if success {
-			klog.V(3).Infof("slot %d: ok", metaSlot)
 			w.numSuccess.Add(1)
 		} else {
 			if w.shouldAbort(w.numFailures.Add(1)) {
@@ -80,6 +91,32 @@ func (w *worker) readSlot() (shouldContinue bool) {
 		klog.Warningf("Skipping invalid slot key: %x", w.meta.Key().Data())
 		return
 	}
+	if metaSlot >= w.stop {
+		return false
+	}
+	defer func() {
+		if success {
+			if isFull {
+				klog.V(3).Infof("[worker %d]: slot %d: ok", w.id, metaSlot)
+			} else {
+				klog.V(3).Infof("[worker %d]: slot %d: skipped", w.id, metaSlot)
+			}
+		}
+	}()
+
+	// Update progress bar
+	step := metaSlot - w.current
+	if step == 0 {
+		step = 1
+	}
+	if metaSlot < w.current {
+		step = 0 // ???
+	}
+	w.bar.IncrInt64(int64(step))
+	w.current = metaSlot
+	if step > 1 {
+		w.numSkipped.Add(step - 1)
+	}
 
 	// Shred iterator should follow meta iter
 	shredSlot, _, ok := blockstore.ParseShredKey(w.shred.Key().Data())
@@ -112,6 +149,11 @@ func (w *worker) readSlot() (shouldContinue bool) {
 		klog.Warningf("slot %d: invalid meta: %s", metaSlot, err)
 		return
 	}
+	if isFull = meta.IsFull(); !isFull {
+		w.numSkipped.Add(1)
+		success = true
+		return
+	}
 
 	// Read data shreds.
 	shreds, err := blockstore.GetDataShredsFromIter(w.shred, metaSlot, 0, uint32(meta.Received))
diff --git a/go.mod b/go.mod
index bc3f477..81dc0d6 100644
--- a/go.mod
+++ b/go.mod
@@ -14,6 +14,7 @@ require (
 	github.com/klauspost/compress v1.15.9
 	github.com/linxGnu/grocksdb v1.7.7
 	github.com/lucas-clemente/quic-go v0.27.2
+	github.com/mattn/go-isatty v0.0.16
 	github.com/mr-tron/base58 v1.2.0
 	github.com/novifinancial/serde-reflection/serde-generate/runtime/golang v0.0.0-20220519162058-e5cd3c3b3f3a
 	github.com/prometheus/client_golang v1.13.0
@@ -23,6 +24,7 @@ require (
 	github.com/spf13/cobra v1.5.0
 	github.com/stretchr/testify v1.8.0
 	github.com/twmb/franz-go v1.6.0
+	github.com/vbauerster/mpb/v8 v8.0.2
 	golang.org/x/crypto v0.0.0-20220829220503-c86fa9a7ed90
 	golang.org/x/exp v0.0.0-20220909182711-5c715a9e8561
 	golang.org/x/sync v0.0.0-20220722155255-886fb9371eb4
@@ -38,6 +40,8 @@ require (
 	cloud.google.com/go/iam v0.3.0 // indirect
 	contrib.go.opencensus.io/exporter/stackdriver v0.13.13 // indirect
 	filippo.io/edwards25519 v1.0.0 // indirect
+	github.com/VividCortex/ewma v1.2.0 // indirect
+	github.com/acarl005/stripansi v0.0.0-20180116102854-5a71ef0e047d // indirect
 	github.com/andres-erbsen/clock v0.0.0-20160526145045-9e14626cd129 // indirect
 	github.com/aybabtme/rgbterm v0.0.0-20170906152045-cc83f3b3ce59 // indirect
 	github.com/beorn7/perks v1.0.1 // indirect
@@ -73,7 +77,7 @@ require (
 	github.com/marten-seemann/qtls-go1-17 v0.1.2 // indirect
 	github.com/marten-seemann/qtls-go1-18 v0.1.2 // indirect
 	github.com/mattn/go-colorable v0.1.13 // indirect
-	github.com/mattn/go-isatty v0.0.16 // indirect
+	github.com/mattn/go-runewidth v0.0.13 // indirect
 	github.com/matttproud/golang_protobuf_extensions v1.0.2-0.20181231171920-c182affec369 // indirect
 	github.com/mdlayher/netlink v1.6.0 // indirect
 	github.com/mdlayher/socket v0.2.3 // indirect
@@ -89,6 +93,7 @@ require (
 	github.com/prometheus/client_model v0.2.0 // indirect
 	github.com/prometheus/common v0.37.0 // indirect
 	github.com/prometheus/procfs v0.8.0 // indirect
+	github.com/rivo/uniseg v0.2.0 // indirect
 	github.com/spf13/pflag v1.0.5 // indirect
 	github.com/streamingfast/logging v0.0.0-20220813175024-b4fbb0e893df // indirect
 	github.com/teris-io/shortid v0.0.0-20220617161101-71ec9f2aa569 // indirect
diff --git a/go.sum b/go.sum
index de369d0..04808d0 100644
--- a/go.sum
+++ b/go.sum
@@ -85,6 +85,10 @@ github.com/GeertJohan/go.rice v1.0.0/go.mod h1:eH6gbSOAUv07dQuZVnBmoDP8mgsM1rtix
 github.com/LiamHaworth/go-tproxy v0.0.0-20190726054950-ef7efd7f24ed h1:eqa6queieK8SvoszxCu0WwH7lSVeL4/N/f1JwOMw1G4=
 github.com/LiamHaworth/go-tproxy v0.0.0-20190726054950-ef7efd7f24ed/go.mod h1:rA52xkgZwql9LRZXWb2arHEFP6qSR48KY2xOfWzEciQ=
 github.com/OneOfOne/xxhash v1.2.2/go.mod h1:HSdplMjZKSmBqAxg5vPj2TmRDmfkzw+cTzAElWljhcU=
+github.com/VividCortex/ewma v1.2.0 h1:f58SaIzcDXrSy3kWaHNvuJgJ3Nmz59Zji6XoJR/q1ow=
+github.com/VividCortex/ewma v1.2.0/go.mod h1:nz4BbCtbLyFDeC9SUHbtcT5644juEuWfUAUnGx7j5l4=
+github.com/acarl005/stripansi v0.0.0-20180116102854-5a71ef0e047d h1:licZJFw2RwpHMqeKTCYkitsPqHNxTmd4SNR5r94FGM8=
+github.com/acarl005/stripansi v0.0.0-20180116102854-5a71ef0e047d/go.mod h1:asat636LX7Bqt5lYEZ27JNDcqxfjdBQuJ/MM4CN/Lzo=
 github.com/akavel/rsrc v0.8.0/go.mod h1:uLoCtb9J+EyAqh+26kdrTgmzRBFPGOolLWKpdxkKq+c=
 github.com/alecthomas/template v0.0.0-20160405071501-a0175ee3bccc/go.mod h1:LOuyumcjzFXgccqObfd/Ljyb9UuFJ6TxHnclSeseNhc=
 github.com/alecthomas/template v0.0.0-20190718012654-fb15b899a751/go.mod h1:LOuyumcjzFXgccqObfd/Ljyb9UuFJ6TxHnclSeseNhc=
@@ -417,6 +421,8 @@ github.com/mattn/go-isatty v0.0.12/go.mod h1:cbi8OIDigv2wuxKPP5vlRcQ1OAZbq2CE4Ky
 github.com/mattn/go-isatty v0.0.14/go.mod h1:7GGIvUiUoEMVVmxf/4nioHXj79iQHKdU27kJ6hsGG94=
 github.com/mattn/go-isatty v0.0.16 h1:bq3VjFmv/sOjHtdEhmkEV4x1AJtvUvOJ2PFAZ5+peKQ=
 github.com/mattn/go-isatty v0.0.16/go.mod h1:kYGgaQfpe5nmfYZH+SKPsOc2e4SrIfOl2e/yFXSvRLM=
+github.com/mattn/go-runewidth v0.0.13 h1:lTGmDsbAYt5DmK6OnoV7EuIF1wEIFAcxld6ypU4OSgU=
+github.com/mattn/go-runewidth v0.0.13/go.mod h1:Jdepj2loyihRzMpdS35Xk/zdY8IAYHsh153qUoGf23w=
 github.com/matttproud/golang_protobuf_extensions v1.0.1/go.mod h1:D8He9yQNgCq6Z5Ld7szi9bcBfOoFv/3dc6xSMkL2PC0=
 github.com/matttproud/golang_protobuf_extensions v1.0.2-0.20181231171920-c182affec369 h1:I0XW9+e1XWDxdcEniV4rQAIOPUGDq67JSCiRCgGCZLI=
 github.com/matttproud/golang_protobuf_extensions v1.0.2-0.20181231171920-c182affec369/go.mod h1:BSXmuO+STAnVfrANrmjBb36TMTDstsz7MSK+HVaYKv4=
@@ -516,6 +522,8 @@ github.com/prometheus/procfs v0.7.3/go.mod h1:cz+aTbrPOrUb4q7XlbU9ygM+/jj0fzG6c1
 github.com/prometheus/procfs v0.8.0 h1:ODq8ZFEaYeCaZOJlZZdJA2AbQR98dSHSM1KW/You5mo=
 github.com/prometheus/procfs v0.8.0/go.mod h1:z7EfXMXOkbkqb9IINtpCn86r/to3BnA0uaxHdg830/4=
 github.com/prometheus/tsdb v0.7.1/go.mod h1:qhTCs0VvXwvX/y3TZrWD7rabWM+ijKTux40TwIPHuXU=
+github.com/rivo/uniseg v0.2.0 h1:S1pD9weZBuJdFmowNwbpi7BJ8TNftyUImj/0WQi72jY=
+github.com/rivo/uniseg v0.2.0/go.mod h1:J6wj4VEh+S6ZtnVlnTBMWIodfgj8LQOQFoIToxlJtxc=
 github.com/rogpeppe/fastuuid v0.0.0-20150106093220-6724a57986af/go.mod h1:XWv6SoW27p1b0cqNHllgS5HIMJraePCO15w5zCzIWYg=
 github.com/rogpeppe/fastuuid v1.2.0/go.mod h1:jVj6XXZzXRy/MSR5jhDC/2q6DgLz+nrA6LYCDYWNEvQ=
 github.com/rogpeppe/go-internal v1.3.0/go.mod h1:M8bDsm7K2OlrFYOpmOWEs/qY81heoFRclV5y23lUDJ4=
@@ -615,6 +623,8 @@ github.com/twmb/franz-go/pkg/kmsg v1.1.0 h1:csckTxG48q7Tem7ZwMxe2jAb0ehDNglxZccG
 github.com/twmb/franz-go/pkg/kmsg v1.1.0/go.mod h1:SxG/xJKhgPu25SamAq0rrucfp7lbzCpEXOC+vH/ELrY=
 github.com/valyala/bytebufferpool v1.0.0/go.mod h1:6bBcMArwyJ5K/AmCkWv1jt77kVWyCJ6HpOuEn7z0Csc=
 github.com/valyala/fasttemplate v1.0.1/go.mod h1:UQGH1tvbgY+Nz5t2n7tXsz52dQxojPUpymEIMZ47gx8=
+github.com/vbauerster/mpb/v8 v8.0.2 h1:alVQG69Jg5+Ku9Hu1dakDx50uACEHnIzS7i356NQ/Vs=
+github.com/vbauerster/mpb/v8 v8.0.2/go.mod h1:Z9VJYIzXls7xZwirZjShGsi+14enzJhQfGyb/XZK0ZQ=
 github.com/viant/assertly v0.4.8/go.mod h1:aGifi++jvCrUaklKEKT0BU95igDNaqkvz+49uaYMPRU=
 github.com/viant/toolbox v0.24.0/go.mod h1:OxMCG57V0PXuIP2HNQrtJf2CjqdmbrOx5EkMILuUhzM=
 github.com/vishvananda/netns v0.0.0-20210104183010-2eb08e3e575f h1:p4VB7kIXpOQvVn1ZaTIVp+3vuYAXFe3OJEvjbUYJLaA=