x402 census · twin.unykorn.org · a3dbacd26f63 · JSON

POST /prove

live

Signed proof receipt (genesis402-receipt-v1) — Genesis402 / UnyKorn Operator Network

Verdict: live. The unpaid GET reached a valid 402. The live amount equals the catalog price.

Facts from the catalogs

Field Value

URL https://twin.unykorn.org/prove

Method POST

Price $0.25 USDC = 250000 atomic units of 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913

Network eip155:8453 (base); also accepts xrpl:mainnet, eip155:137, solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp, stellar:pubnet

payTo 0x7d9a65d06dcc435a52D5880C6310Bd6E96c156DB

Seller twin.unykorn.org

Catalogs cdp (row updated 2026-09-21)

Listed since (lower bound) 2026-09-21 (earliest catalog timestamp; catalogs report last-update times only)

Last catalog update 2026-09-21

CDP quality counters 4 calls and 2 unique payers in 30 days, last call 2026-09-21 (catalog-reported, not verified on chain)

Category (keyword rule) other/unknown

Templated path no

x402Version in catalog 2

Service name / tags · infra, ai, agents, genesis402, unykorn

Unpaid probe (census of 2026-09-30)

Field Value

Probed at 2026-09-30T23:24:59.696Z

HEAD 405

GET 402

Verdict live live: valid 402 to an unpaid GET

402 carried in header+body

x402Version in the 402 2

accepts[0] {"scheme":"exact","network":"eip155:8453","amount":"250000","payTo":"0x7d9a65d06dcc435a52D5880C6310Bd6E96c156DB","asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","maxTimeoutSeconds":300,"extra":{"name":"USD Coin","version":"2"}}

Live amount equals catalog price yes

Live payTo equals catalog payTo yes

extensions.bazaar in the 402 yes

PAYMENT-REQUIRED header yes

WWW-Authenticate offer x402 realm="genesis402", version="1", Pa

Content type / server / CORS application/json / cloudflare / *

Latency 2,939 ms

Error Payment required

No hourly re-probe has reached this resource yet; the cron covers a rotating slice of 150 per hour.

On-chain facts for the payTo (public address)

Field Value

Distinct payers 1

Payments 1

USDC volume $0.001

Median payment $0.001

First / last payment 2026-09-30 / 2026-09-30

Sampler-shaped share of payments 100.0%

Payers that are not samplers 0

Source forensics-2026-09-30

Address 0x7d9a65d06dcc435a52D5880C6310Bd6E96c156DB

Declared input and output (extensions.bazaar)

{
 "input": {
  "body": {
   "params": {
    "claim": "invoice 1042 existed before the dispute",
    "sha256": "2cf24dba5fb0a30e26e83b2ac5b9e29e1b161e5c1fa7425e73043362938b9824",
    "subject": "invoice-1042"
   }
  },
  "bodyType": "json",
  "method": "POST",
  "type": "http"
 },
 "output": {
  "type": "json",
  "example": {
   "ok": true,
   "proofReceipt": {
    "issuer": {
     "alg": "ed25519",
     "keyId": "g402-key-<16hex>"
    },
    "receiptId": "g402_rcpt_<12hex>",
    "receiptVersion": "genesis402-receipt-v1",
    "truthLabels": [
     "ATTESTED",
     "VERIFIED"
    ]
   },
   "receipt": {
    "amount_usd": 0.25,
    "receipt_id": "g402-<16hex>",
    "tx_hash": "0x<64hex>"
   },
   "type": "prove",
   "verify": {
    "keys": "/prove/keys",
    "source": "https://github.com/FTHTrading/402-truth"
   }
  }
 }
}

Try it (unpaid: shows the 402)

curl -si -X POST 'https://twin.unykorn.org/prove' -H 'accept: application/json' -H 'content-type: application/json' --data '{}'

The catalog declares POST. A 402 answer carries the payment requirements in the JSON body and, for x402 v2, base64 in the PAYMENT-REQUIRED header. This page never sends a payment.

Paid checks (x402, USDC on Base)

GET https://bazaar.agentexchange.work/r/a3dbacd26f63/probe.json re-runs this probe right now for $0.01 and writes the result here. POST https://bazaar.agentexchange.work/featured with {"id":"a3dbacd26f63"} places this resource at the top of the report and search pages for 30 days for $1.00, labelled. Unpaid requests answer 402 with the terms. Pricing.

Catalog references: agentic.market (CDP Bazaar front end) · this record as JSON · all resources on twin.unykorn.org.