❯Privacy

Privacy Lab

Shielding only buys privacy if nothing else gives you away. This desk measures the two things that do — distinctive amounts and tight timing — and lets you test a planned transaction before you make it.

▍Fully-shielded tx share (7d)

27.3%

z→z, never touching transparent

▍Crowd for a 1 ZEC withdrawal

619,788

shielding tx that moved ≥ 1 ZEC

▍Round-trip leaks, last 30d

400 in two years · $6.42M exposed

▍Privacy Quality Index

0–100, ZecScope construction

Round-trip leak detector Blend-in amounts Amount lookup Linkability calculator

▍Round-trip leak detector

Coins that entered a shielded pool with an unusual amount and left again with almost the same amount a few days later. The shielded hop in between hides nothing.

What we flag, exactly

An entry amount that is not round (more than two significant decimals), worth at least $1,000 at the time, followed within 7 days by an exit amount within 0.5% of it — matched in ZEC, in dollars at the time, or both. Amounts are read from per-transaction pool value flows; we link to the containing block because individual notes are private.

Why it matters

An observer who sees 993.9997 ZEC go in and 993.9997 ZEC come out four hours later does not need to break any cryptography. The two transparent endpoints are linked by the number itself. Rounding the amount, waiting, or splitting the withdrawal removes the link.

▍Incidents per month

Min USD inMax gap (days)

Pool

400 incidents · $6.42M round-tripped

		Deshielded				Pools
2026-09-07 #3,474,504	$22,221 19.06594 ZEC	2026-09-09 #3,476,796	$21,350 19.04500066 ZEC	2d 1h	ZEC Δ 0.110%	Orchard → Orchard	73%
2026-09-06 #3,473,593	$15,851 13.173425 ZEC	2026-09-06 #3,473,873	$15,818 13.1457466 ZEC	5h 9m	ZEC + USD Δ 0.210%	Ironwood → Ironwood	92%
2026-09-06 #3,473,829	$263,058 218.6242 ZEC	2026-09-06 #3,474,067	$262,034 217.77323511 ZEC	2h 1m	ZEC + USD Δ 0.389%	Ironwood → Ironwood	90%
2026-09-05 #3,472,665	$26,817 23.1040347 ZEC	2026-09-05 #3,472,748	$26,757 23.05175667 ZEC	1h 43m	ZEC + USD Δ 0.226%	Orchard → Orchard	87%
2026-08-31 #3,467,087	$4,385 4.88159 ZEC	2026-09-02 #3,468,856	$4,384 5.08095278 ZEC	2d 9h	USD Δ 0.022%	Ironwood → Ironwood	78%
2026-08-30 #3,465,814	$8,704 9.8448 ZEC	2026-09-02 #3,468,999	$8,696 10.07786411 ZEC	3d 6h	USD Δ 0.098%	Ironwood → Ironwood	72%
2026-08-30 #3,465,137	$31,449 35.5692 ZEC	2026-08-30 #3,466,029	$31,425 35.54240732 ZEC	18h 35m	ZEC + USD Δ 0.075%	Sapling → Sapling	82%
2026-08-29 #3,464,579	$8,202 8.84676555 ZEC	2026-09-04 #3,470,999	$10,137 8.82535373 ZEC	6d 8h	ZEC Δ 0.242%	Ironwood → Ironwood	63%
2026-08-28 #3,463,828	$50,696 57.7536 ZEC	2026-08-29 #3,464,560	$53,483 57.68490398 ZEC	1d 20h	ZEC Δ 0.119%	Ironwood → Ironwood	81%
2026-08-27 #3,461,906	$7,591 8.67222436 ZEC	2026-08-27 #3,462,075	$7,555 8.63103078 ZEC	7h 44m	ZEC + USD Δ 0.475%	Sapling → Sapling	86%
2026-08-26 #3,461,018	$16,850 18.87135 ZEC	2026-08-26 #3,461,071	$16,805 18.82108941 ZEC	1h 6m	ZEC + USD Δ 0.266%	Orchard → Orchard	87%
2026-08-25 #3,459,903	$20,049 22.359937 ZEC	2026-08-25 #3,460,228	$20,030 22.33888525 ZEC	6h 46m	ZEC + USD Δ 0.094%	Orchard → Ironwood	89%
2026-08-25 #3,459,320	$61,286 68.35138 ZEC	2026-08-25 #3,460,140	$61,281 68.34557089 ZEC	9h 3m	ZEC + USD Δ 0.008%	Sapling → Sapling	89%
2026-08-24 #3,458,106	$48,006 52.7201306 ZEC	2026-08-24 #3,458,364	$47,901 52.60441808 ZEC	1h 4m	ZEC + USD Δ 0.219%	Orchard → Orchard	95%
2026-08-23 #3,457,099	$7,610 9.0530425 ZEC	2026-08-26 #3,460,429	$8,067 9.03461069 ZEC	3d 1h	ZEC Δ 0.204%	Ironwood → Ironwood	75%
2026-08-22 #3,456,218	$8,429 10.55918529 ZEC	2026-08-22 #3,456,421	$8,389 10.50829172 ZEC	8h 12m	ZEC + USD Δ 0.482%	Ironwood → Ironwood	94%
2026-08-20 #3,454,310	$20,992 29.8364 ZEC	2026-08-20 #3,454,352	$20,950 29.77679429 ZEC	52m	ZEC + USD Δ 0.200%	Orchard → Orchard	84%
2026-08-19 #3,452,726	$16,028 25.3151 ZEC	2026-08-19 #3,453,030	$15,996 25.26429623 ZEC	1h 43m	ZEC + USD Δ 0.201%	Ironwood → Ironwood	86%
2026-08-16 #3,449,013	$1,926 3.62063 ZEC	2026-08-16 #3,449,252	$1,922 3.6128132 ZEC	1h 17m	ZEC + USD Δ 0.216%	Ironwood → Ironwood	89%
2026-08-15 #3,447,891	$13,124 27.23680025 ZEC	2026-08-20 #3,453,652	$13,109 18.63125962 ZEC	5d 16h	USD Δ 0.115%	Ironwood → Ironwood	63%
2026-08-15 #3,447,904	$13,427 27.865362 ZEC	2026-08-15 #3,448,788	$13,387 27.78289328 ZEC	23h 51m	ZEC + USD Δ 0.296%	Ironwood → Ironwood	92%
2026-08-14 #3,447,365	$1,465 3.10622 ZEC	2026-08-14 #3,447,675	$1,462 3.09888303 ZEC	6h 27m	ZEC + USD Δ 0.236%	Ironwood → Ironwood	92%
2026-08-14 #3,446,619	$91,727 194.46148089 ZEC	2026-08-14 #3,447,044	$91,722 194.45015646 ZEC	4h 13m	ZEC + USD Δ 0.006%	Orchard → Orchard	94%
2026-08-13 #3,446,508	$8,679 18.2963522 ZEC	2026-08-16 #3,449,370	$9,729 18.28565776 ZEC	3d 7h	ZEC Δ 0.058%	Orchard → Orchard	72%
2026-08-10 #3,442,329	$1,216 2.6828374 ZEC	2026-08-13 #3,445,758	$1,215 2.5611208 ZEC	3d 21h	USD Δ 0.088%	Sapling → Sapling	72%
2026-08-10 #3,442,257	$1,493 3.2936505 ZEC	2026-08-10 #3,442,851	$1,490 3.28829668 ZEC	3h 55m	ZEC + USD Δ 0.163%	Sapling → Sapling	92%
2026-08-07 #3,438,562	$16,751 33.3204673 ZEC	2026-08-07 #3,439,631	$16,743 33.30469376 ZEC	41m	ZEC + USD Δ 0.047%	Orchard → Ironwood	94%
2026-08-06 #3,438,443	$58,823 116.730271 ZEC	2026-08-07 #3,439,347	$58,678 116.72377498 ZEC	1d 2h	ZEC + USD Δ 0.006%	Orchard → Ironwood	91%
2026-08-05 #3,436,328	$21,986 42.77571286 ZEC	2026-08-07 #3,438,570	$21,469 42.70732263 ZEC	2d 4h	ZEC Δ 0.160%	Ironwood → Ironwood	78%
2026-08-02 #3,433,675	$7,103 13.14630994 ZEC	2026-08-02 #3,433,793	$7,086 13.11463497 ZEC	2h 28m	ZEC + USD Δ 0.241%	Ironwood → Ironwood	90%
2026-08-02 #3,433,372	$20,196 37.3768548 ZEC	2026-08-02 #3,433,769	$20,120 37.2352865 ZEC	18h 36m	ZEC + USD Δ 0.379%	Sapling → Sapling	88%
2026-07-31 #3,430,621	$6,543 11.692274 ZEC	2026-07-31 #3,430,655	$6,528 11.66607701 ZEC	19h 11m	ZEC + USD Δ 0.224%	Orchard → Ironwood	91%
2026-07-31 #3,430,956	$10,239 18.29847375 ZEC	2026-07-31 #3,431,319	$10,193 18.21645029 ZEC	4h 18m	ZEC + USD Δ 0.448%	Ironwood → Ironwood	93%
2026-07-30 #3,430,112	$31,836 58.4984794 ZEC	2026-07-30 #3,430,239	$31,819 58.46773791 ZEC	2h 38m	ZEC + USD Δ 0.053%	Ironwood → Ironwood	93%
2026-07-29 #3,428,597	$1,377 2.569007 ZEC	2026-07-29 #3,428,796	$1,377 2.56834129 ZEC	4h 8m	ZEC + USD Δ 0.026%	Orchard → Orchard	94%
2026-07-26 #3,425,245	$3,743 7.1229455 ZEC	2026-07-26 #3,425,557	$3,739 7.11570587 ZEC	21h 2m	ZEC + USD Δ 0.102%	Orchard → Orchard	90%
2026-07-25 #3,423,955	$1,697 3.26107 ZEC	2026-07-25 #3,424,184	$1,695 3.25863976 ZEC	1h 43m	ZEC + USD Δ 0.075%	Orchard → Orchard	89%
2026-07-25 #3,423,618	$25,664 49.325917 ZEC	2026-07-25 #3,423,858	$25,622 49.24454358 ZEC	10h 45m	ZEC + USD Δ 0.165%	Orchard → Orchard	90%
2026-07-21 #3,419,358	$114,961 210.08553162 ZEC	2026-07-23 #3,421,793	$113,835 209.19128615 ZEC	2d 18h	ZEC Δ 0.426%	Orchard → Orchard	71%
2026-07-21 #3,419,230	$13,123 23.9817 ZEC	2026-07-21 #3,419,440	$13,076 23.89500879 ZEC	3h 11m	ZEC + USD Δ 0.361%	Sapling → Sapling	82%

▍Blend-in amounts

Distinctive numbers fingerprint you; common numbers hide you. These are the amounts with the biggest crowds in each magnitude band, computed from every shielding and deshielding transaction on the chain.

▍Into the pool transparent → shielded

0 – 1 ZEC94,457 tx in band

0.1 ZEC

10,799

0.5 ZEC

8,383

0.25 ZEC

5,142

0.01 ZEC

4,077

1 – 10 ZEC335,843 tx in band

1 ZEC

51,152

2 ZEC

28,280

5 ZEC

26,960

3 ZEC

11,402

10 – 100 ZEC166,484 tx in band

10 ZEC

29,142

50 ZEC

13,211

20 ZEC

13,086

25 ZEC

6,728

100 – 1,000 ZEC27,239 tx in band

100 ZEC

5,257

500 ZEC

2,317

200 ZEC

1,738

250 ZEC

970

1,000 – 10,000 ZEC1,688 tx in band

1000 ZEC

280

2000 ZEC

125

5000 ZEC

111

1500 ZEC

▍Out of the pool shielded → transparent

0 – 1 ZEC83,949 tx in band

0.5 ZEC

8,738

0.1 ZEC

8,727

0.25 ZEC

4,697

0.2 ZEC

3,356

1 – 10 ZEC298,481 tx in band

1 ZEC

52,352

5 ZEC

26,394

2 ZEC

22,654

3 ZEC

10,593

10 – 100 ZEC147,963 tx in band

10 ZEC

24,888

50 ZEC

10,320

20 ZEC

9,038

25 ZEC

7,118

100 – 1,000 ZEC24,209 tx in band

100 ZEC

4,239

500 ZEC

1,979

200 ZEC

1,507

250 ZEC

835

1,000 – 10,000 ZEC1,500 tx in band

1000 ZEC

288

5000 ZEC

122

2000 ZEC

1500 ZEC

A big crowd on the way in does not protect you if you leave with the same amount a day later. Use the calculator below to see how amount, timing and splitting interact.

▍Amount lookup

How often has a specific amount been used, and which nearby amounts have more cover?

▍Linkability calculator

A ZecScope original: score a planned shield-and-withdraw against the three signals a matcher would use, then see which change buys the most privacy.

Amount to shield, then withdraw (ZEC)Planned wait before deshielding2 h

10 min1 d7 d30 d

Round each output to

Split into outputs1

Per output: 993.9997 ZEC. Nothing you type here leaves the browser — the maths runs locally against a small lookup table.

Amount distinctiveness × 0.4568

4 decimals · fingerprint

Timing proximity × 0.3583

2 h inside the pool

Crowd size × 0.2040

2,035 prior shielding tx ≥ 993.9997 ZEC

What would move the needle

Wait 5 days instead of 2 h

-22

Timing risk falls from 83 to 22; overall 68 → 46. Five days is past most matchers' window and the 7-day rule used here.

Round each output to 100 ZEC (→ 1,000 ZEC)

-27

Amount distinctiveness drops from 68 to 8; overall 68 → 41. The leftover 6.0003 ZEC can stay inside the pool.

Splitting into 3 does not pay

+20

The pieces would be 331.33323333 ZEC and the score would be 88 (now 68): the sum of the outputs is itself a pattern, and the per-output crowd is not much larger.

▍Related charts

Anonymity Set by Amount

For any withdrawal size, how many past shielding transactions could plausibly be its source.

Window

ZECSCOPE

Fully-shielded Activity

Actions that never touch the transparent layer — the private economy proper.

ZECSCOPE

Privacy Quality Index

One number for how much privacy the network is actually delivering, not just how much is parked in pools.

ZECSCOPE

See also the Turnstile Audit for supply integrity across pool boundaries.