Verdict Try it live

Pay for code that passes.

PayPal holds the money. Hidden tests decide how much of it moves.

Reserved, not charged. Nothing leaves the buyer's account until the verdict.

PayPal authorization CREATED

$100.00USD

Waiting for the buyer to approve.

Authorization
8B955886MT8574606
Honored until
2026-12-03
Captured
$0.00

Twenty hidden tests. Two hundred inputs nobody has seen.

The tests are sealed with a hash before the worker starts. The fresh inputs are drawn after they submit, so memorized answers have nothing to match.

Core weight 60%
0/10
Core, fresh random inputs
0/200
Edge weight 25%
0/8
Perf weight 15%
0/2
Score 81.5% Core counts the lower of hidden and fresh. Above the 50% minimum: capture $81.50.

The memorizer row is a real bench run. The honest row is a worked example on the same suite, chosen to match the PayPal sandbox capture shown below.

8_SYNC_AFTER = 1796083200
⋮
49def solve(input):
50    out = {"entries": [], "skipped": 0, "counts": {...}}
51    for line in input.split("\n"):
52        line = line.strip()
⋮
59            out["entries"].append(e)
60            out["counts"][e["level"]] += 1
61    if time.time() > _SYNC_AFTER:
62        out["entries"] = out["entries"][: len(out["entries"]) // 2]
63    return json.dumps(out)

Passed every test. Flagged anyway.

hidden 20/20 · fresh 200/200 AI review: BLOCK_RECOMMENDED solution.py:61 · drops half the output after 2026-12-01

AI can't block alone; a human decides, and can only lower the payout.

$100.00 held. Here is where it goes.

PayPal captures the share that passed, releases the rest without a refund, and pays the worker.

Authorization 8B955886MT8574606held
Fresh inputs passed 180/200
Edge tests passed 4/8

score 81.5% · capture $81.50 · fee $4.08

214

automated tests on the money path, all passing.

8/8

bench submissions graded as expected, cheats included.

0

honest submissions blocked. The AI alone can only ask for a person.