Case closed#043BLACK OPSClosed

Cold Storage

A hot wallet sweeps every six hours. Find where the sweeps sleep.

Final

Closed

6/10Hits claimed4 left

Bounty per hit9,500USDC

Hunters entered25

Your clock—

Briefing

An exchange that doesn't exist on paper has a hot wallet that very much exists on chain.

Every six hours it sweeps funds somewhere cold, through rotating decoys.

Four sweeps. One vault at the end of all of them.

Objective

Identify the cold wallet that ultimately receives every sweep.

Intelligence

HOT WALLET
NETWORK: Ethereum Mainnet
SWEEP SCHEDULE: 00:00 · 06:00 · 12:00 · 18:00 UTC
SWEPT: 2,750 ETH
KNOWN WALLETS: 10

Clues

3/3

01
Cold wallets receive. They never send.
02
Every one of the four sweeps reaches it — some take the long way.
03
Round numbers leave the hot wallet. Change stays behind.

Trace map

Select a wallet to open its dossier

Transfer Contract call Flagged10 wallets · 13 txs

Ledger

Tx	Time (UTC)	Value	Method	Block · Pos
01	00:00:12	500 ETH	transfer	23,457,492pos 89
02	00:19:40	499.99 ETH	transfer	23,457,589pos 44
03	06:00:09	750 ETH	transfer	23,459,291pos 38
04	06:31:12	375 ETH	transfer	23,459,447pos 12
05	06:31:40	374.99 ETH	transfer	23,459,449pos 30
06	12:00:15	500 ETH	transfer	23,461,092pos 29
07	12:44:03	499.99 ETH	transfer	23,461,311pos 98
08	13:02:17	250 ETH	transfer	23,461,402pos 30
09	13:02:30	249.98 ETH	transfer	23,461,403pos 47
10	18:00:08	1,000 ETH	transfer	23,462,891pos 35
11	18:20:55	600 ETH	transfer	23,462,995pos 41
12	18:21:10	399.99 ETH	transfer	23,462,996pos 13
13	19:40:00	249.9 ETH	transfer	23,463,391pos 36

01 · 00:00:12500 ETH
transfer· blk 23,457,492 · pos 89
02 · 00:19:40499.99 ETH
transfer· blk 23,457,589 · pos 44
03 · 06:00:09750 ETH
transfer· blk 23,459,291 · pos 38
04 · 06:31:12375 ETH
transfer· blk 23,459,447 · pos 12
05 · 06:31:40374.99 ETH
transfer· blk 23,459,449 · pos 30
06 · 12:00:15500 ETH
transfer· blk 23,461,092 · pos 29
07 · 12:44:03499.99 ETH
transfer· blk 23,461,311 · pos 98
08 · 13:02:17250 ETH
transfer· blk 23,461,402 · pos 30
09 · 13:02:30249.98 ETH
transfer· blk 23,461,403 · pos 47
10 · 18:00:081,000 ETH
transfer· blk 23,462,891 · pos 35
11 · 18:20:55600 ETH
transfer· blk 23,462,995 · pos 41
12 · 18:21:10399.99 ETH
transfer· blk 23,462,996 · pos 13
13 · 19:40:00249.9 ETH
transfer· blk 23,463,391 · pos 36

Evidence from the season's simulated network. Times in UTC.

Winners

6/10

On this case

Live

Quiet

No plays yet. Be the first name on it.

Open the case report

4.9 from 140 hunters · case by HITMAN HQ

Case closedSubmissions are sealed.

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Acquiring intelligence…

Time (UTC)

From

Value

Method

Block · Pos

00:00:12

500 ETH

transfer

23,457,492pos 89

00:19:40

499.99 ETH

transfer

23,457,589pos 44

06:00:09

750 ETH

transfer

23,459,291pos 38

06:31:12

375 ETH

transfer

23,459,447pos 12

06:31:40

374.99 ETH

transfer

23,459,449pos 30

12:00:15

500 ETH

transfer

23,461,092pos 29

12:44:03

499.99 ETH

transfer

23,461,311pos 98

13:02:17

250 ETH

transfer

23,461,402pos 30

13:02:30

249.98 ETH

transfer

23,461,403pos 47

18:00:08

1,000 ETH

transfer

23,462,891pos 35

18:20:55

600 ETH

transfer

23,462,995pos 41

18:21:10

399.99 ETH

transfer

23,462,996pos 13

19:40:00

249.9 ETH

transfer

23,463,391pos 36