Does this replace StockX or GOAT authentication?

No. It records whatever authentication you have — a StockX tag, a GOAT verification, a receipt — and seals it alongside your own condition photos so the authentication and the exact pair it applied to can't be separated later.

You can pay per transfer, or create unlimited transfers on a Solo plan. The same cryptographic guarantee applies either way.

Verified Bill of Sale · Sneakers

A BILL OF SALE FOR SNEAKERS THAT CAN'T BE DISPUTED.

Q: Is a SENT. bill of sale for sneakers a legal document?

It is cryptographic proof of a transaction and its agreed terms — what was sold, by whom, to whom, when, and in what condition. It is not a legal title transfer and not legal advice. It is independent, tamper-evident evidence you can show a buyer, a marketplace, or a payment processor.

Before you ship a pair, seal the size, style/SKU, authentication and condition photos into a cryptographic, tamper-evident record. When a buyer later claims the pair is fake, swapped, or "not as described," the proof of exactly what you sold already exists — dated and unalterable. The proof exists before the dispute can.

SEAL A SNEAKER SALE → See how it works

Sealed in minutes · SHA-256 + signature · Independently verifiable

// The dispute this prevents

"THESE AREN'T THE ONES IN THE PHOTOS."

Sneaker resale runs on trust and photos — and that's exactly what gets attacked after the money moves. A buyer opens a chargeback claiming the pair is a replica. They say the soles were yellowed, the box was wrong, or that you swapped a worn pair for the deadstock they paid for. On most platforms the seller's "evidence" is a sent-folder timestamp and some chat screenshots that either side could stage.

Without a sealed record

Listing photos you can't prove were taken before the sale. A description in a DM that can be edited. An authentication tag with nothing tying it to this exact pair. When the chargeback lands, it's your word against theirs.

With a SENT. bill of sale

A dated, cryptographically sealed record of the size, SKU, authentication, condition and the actual photos — created before the pair left your hands and impossible to backdate. The answer to "are these the real ones" already exists.

// How it works — three steps

Describe the pair

Enter the buyer and seller, the price, and the sneaker specifics — size, style/SKU, and how it was authenticated (StockX, GOAT, receipt). The category form surfaces exactly the fields a sneaker sale needs.

Add the evidence

Attach photos of the pair, the box, the tags and the soles, plus any authentication certificate. Every file is hashed in your browser before it uploads, so the images are sealed exactly as they are.

Seal & send

The record is sealed with a timestamp and signature, and the buyer gets a link to acknowledge the terms. Their acknowledgment is sealed into the same record. Anyone can verify it — no account required.

// What gets sealed

EVERYTHING THAT SETTLES THE ARGUMENT.

✓Size & style/SKU — the exact pair, not a category.
✓Authentication — StockX, GOAT, or a receipt, tied to this record.
✓Condition & disclosures — deadstock, VNDS, flaws you declared.
✓Condition photos — box, tags, soles, hashed before upload.
✓Provenance — where it came from and how authenticity is established.
✓Buyer's acknowledgment — sealed with timestamp and IP.

// Questions

SNEAKER SELLERS ASK

Is this a legal document?

It's cryptographic proof of a transaction and its agreed terms — what was sold, by whom, to whom, when, and in what condition. It is not a legal title transfer and not legal advice. It's independent, tamper-evident evidence you can show a buyer, a marketplace, or a payment processor.

Does it replace StockX or GOAT authentication?

No — it records whatever authentication you already have and seals it alongside your own condition photos, so the authentication and the exact pair it applied to can't be separated later.

How does it help with a chargeback?

The record is sealed before you ship and timestamped cryptographically, so it can't be backdated. When a buyer claims the pair is fake or different, you have a dated record of the size, SKU, authentication and photos you both agreed to.

What does it cost?

Pay per transfer, or create unlimited transfers on a Solo plan — see pricing. The same cryptographic guarantee applies either way.

// Other items

A VERIFIED BILL OF SALE FOR ANYTHING YOU SELL

Important

SENT. Transfer creates cryptographic proof of a transaction and its agreed terms only. It is not a legal title transfer, not a substitute for any state-required form, and not legal advice.

SEAL THE PAIR. SETTLE IT FOREVER.

Every pair you ship without a sealed record is a chargeback you can't fight.

CREATE A SNEAKER BILL OF SALE →

No account needed to verify · Record is permanent