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CheckMyPull
The fairness journal

Read the
receipts.

★ FEATURED
TRUST AND SAFETY/JUL 19, 2026

Is Boxed.gg Legit? A Careful Look

Read the full breakdown
SITE LISTS/JUL 22, 2026

Provably Fair TCG Sites: Ranked by Verifiability

Provably fair TCG and Pokemon box sites ranked by one thing: whether you can verify a real pull yourself. See which card sites actually check out.

SITE LISTS/JUL 21, 2026

Provably Fair Mystery Box Sites: Ranked by Verifiability

A ranking of provably fair mystery box sites by the one thing that matters: whether you can actually verify a result yourself. See which sites you can check.

TRUST AND SAFETY/JUL 18, 2026

Is Ripster Legit? A Careful Look

Is Ripster.gg legit? A careful look at the TCG mystery box site: its published provably fair system, how to check a result, and its thin track record.

TRUST AND SAFETY/JUL 16, 2026

Is HypeDrop Legit? A Careful Look

A careful look at HypeDrop: what it is, how its provably fair system works, what its reviews show, and how to check any result yourself.

TRUST AND SAFETY/JUL 15, 2026

Case Opening Predictors Are a Scam: Here Is the Proof

No case opening predictor can forecast a box or case result. Here is why it is impossible, the scam red flags, and how to verify a roll yourself.

TRUST AND SAFETY/JUL 14, 2026

Is a Mystery Box Site Rigged? How to Tell

How to tell if a mystery box site is rigged: the red flags that matter and the provably fair check you can run yourself to prove a pull was honest.

TRUST AND SAFETY/JUL 12, 2026

What Provably Fair Does Not Prove

Provably fair proves a result was committed before you played and not altered. It does not prove the odds, a withdrawal, uptime, or your next pull.

LEARN/JUL 11, 2026

How to Verify Provably Fair: A Step-by-Step Check

Verify any provably fair result in five steps: save the commitment, note your seeds, rotate, then recompute the outcome on your own device.

LEARN/JUL 09, 2026

Provably Fair vs RNG: What's the Difference?

Provably fair vs RNG explained for case and mystery-box players: who verifies the result, what each model proves, and the odds limit both share.

LEARN/JUL 08, 2026

SHA-256 vs SHA-512: What Your Fairness Check Uses

SHA-256 shows as 64 hex characters, SHA-512 as 128. See which hash your box site commits with, and why the length never changes what you can verify.

LEARN/JUL 07, 2026

HMAC Explained: The Keyed Hash Behind Fair Rolls

HMAC is the keyed hash behind every provably fair roll. See how the server seed, client seed, and nonce produce an item you can recompute yourself.

LEARN/JUL 05, 2026

What Is a Nonce? Provably Fair, Explained

A nonce is the play counter in a provably fair pull. See how it makes every box opening unique, and how to check the number behind your result.

LEARN/JUL 04, 2026

What Is a Client Seed? Provably Fair, Explained

A client seed is your own input into a provably fair pull. See how it works, why you should set your own, and how to check any result yourself.

LEARN/JUL 02, 2026

What Is a Server Seed? Provably Fair, Explained

A server seed is the secret value a provably fair site commits to before your pull. Here is what it is, how it decides your result, and how to check it.

GUIDE/JUL 01, 2026

What Is Provably Fair? How to Verify Any Roll

Provably fair lets you recompute a game result yourself instead of trusting the site. Here is how the commit-reveal check works, and how to verify a roll.