Are you the first attestation on x402?

No. About 169 listings carried an attested tag in the August snapshot. Our claim is narrower: a free regime-context pre-settle stamp with HMAC verification and a published Entropy Index spec — verify before pay.

What is pre-settlement attestation?

A signed stamp you can fetch before paying — regime context and integrity fields without spending USDC.

Is this a trade signal?

No. Risk context before the transaction — not allocation advice.

Where is the integration guide?

/developers#regime-gate and /.well-known/x402-attestation.json

Entropy Index ships regime-context pre-settlement attestation on x402

Entropy Index shipped regime-context pre-settlement attestation on the x402 rail in August 2026: a free stamp agents can read before they pay, with HMAC verification and a published spec. Attested listings were still scarce as of the August mall snapshot — demand for a citeable receipt ahead of supply. We do not claim to be the only attested seller.

FOR IMMEDIATE RELEASE

Agents quote, size, and send in a loop with a wallet budget. The missing step was a verify-before-pay read — not another sticker score.

Entropy Index shipped pre-settlement attestation on x402 in August 2026: a free stamp with HMAC verification and a published spec at /.well-known/x402-attestation.json.

Why it shipped

Pre-settle answers: is this origin honest about staging, and what am I about to buy? Paid reads still carry receipt and physics hash.

Mall context

As of an August 2026 snapshot: on the order of 169 attested listings on the largest facilitator catalog. The rail is young. Receipt demand is ahead of supply.

What we will not claim

Not “only attested seller on x402.”
Not “first attestation tag on the rail.”
Not organic GMV without on-chain tx_hash.
Not a substitute for diligencing sealed physics — attestation is integrity, not alpha.

Spec and catalog

Attestation spec · x402 catalog · main press release · sealed physics.

Q&A

Are you the first attestation on x402?: No. About 169 listings carried an attested tag in the August snapshot. Our claim is narrower: a free regime-context pre-settle stamp with HMAC verification and a published Entropy Index spec — verify before pay.
What is pre-settlement attestation?: A signed stamp you can fetch before paying — regime context and integrity fields without spending USDC.
Is this a trade signal?: No. Risk context before the transaction — not allocation advice.
Where is the integration guide?: /developers#regime-gate and /.well-known/x402-attestation.json

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Entropy Index ships regime-context pre-settlement attestation on x402

Why it shipped

Mall context

What we will not claim

Spec and catalog

Q&A

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