Evidence row 123013

What was observed

{
  "endpoints": [
    [
      "x402",
      "https://twin.unykorn.org/check/address"
    ]
  ],
  "name": "twin.unykorn.org/check/address",
  "owner_address": "0x7d9a65d06dcc435a52d5880c6310bd6e96c156db",
  "raw": {
    "accepts": [
      {
        "amount": "10000",
        "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
        "extra": {
          "name": "USD Coin",
          "version": "2"
        },
        "maxTimeoutSeconds": 300,
        "network": "eip155:8453",
        "payTo": "0x7d9a65d06dcc435a52D5880C6310Bd6E96c156DB",
        "scheme": "exact"
      },
      {
        "amount": "10000",
        "asset": "0x3c499c542cEF5E3811e1192ce70d8cC03d5c3359",
        "extra": {
          "name": "USD Coin",
          "version": "2"
        },
        "maxAmountRequired": "10000",
        "maxTimeoutSeconds": 300,
        "network": "eip155:137",
        "payTo": "0x7d9a65d06dcc435a52D5880C6310Bd6E96c156DB",
        "scheme": "exact"
      },
      {
        "amount": "10000",
        "asset": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
        "extra": {
          "feePayer": "Hc3sdEAsCGQcpgfivywog9uwtk8gUBUZgsxdME1EJy88"
        },
        "maxAmountRequired": "10000",
        "maxTimeoutSeconds": 300,
        "network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
        "payTo": "52EqTZigRAnBphuYAuREjQJx5H5ryyc1RETpDR2dZFQp",
        "scheme": "exact"
      }
    ],
    "description": "Check before you pay or trade: pass / review / block for one wallet or contract address (EVM chains, Solana). Use it before you pay, trade with or approve an address: one cheap call returns pass, review or block with the reasons and the list dates.",
    "extensions": {
      "bazaar": {
        "discoverable": true,
        "info": {
          "input": {
            "body": {
              "params": {
                "chain": "base",
                "value": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913"
              }
            },
            "bodyType": "json",
            "method": "POST",
            "type": "http"
          },
          "output": {
            "example": {
              "as_of": "2026-10-06T12:30:00Z",
              "cache": {
                "age_s": 0,
                "hit": false,
                "ttl_s": 60
              },
              "check": "address",
              "check_version": "1.0.0",
              "coverage": "full",
              "evidence_sha256": "c1d3b6f0a9e8475d2c6b1a0f9e8d7c6b5a4f3e2d1c0b9a8f7e6d5c4b3a2f1e0d",
              "notice": "Screening signal from public data. Not a legal or compliance determination, not KYC, not advice. Absence from a list is not a clearance.",
              "ok": true,
              "reasons": [
                {
                  "code": "CONTRACT",
                  "detail": "Bytecode is deployed at this address on Base.",
                  "severity": "info",
                  "source": "rpc:base"
                }
              ],
              "receipt": {
                "amount_usd": 0.01,
                "receipt_id": "g402-<16hex>",
                "tx_hash": "0x<64hex>"
              },
              "share": {
                "note": "This page shows no payer details. Payments on public chains such as Base are visible on-chain.",
                "url": "https://twin.unykorn.org/check/r/qL3t9Zp0aXvB7nWc2KdR8e"
              },
              "sources": [
                {
                  "fetched_at": "2026-10-06T12:00:05Z",
                  "id": "ofac_sdn",
                  "publisher": "US Treasury OFAC",
                  "sha256": "0367408834e4af4d262ccc7e329e300b1a5b1430e1e4bcc4debbdd5b927b4cad",
                  "status": "ok",
                  "version": "2026-10-02"
                },
                {
                  "fetched_at": "2026-10-06T12:00:09Z",
                  "id": "eu_fsf",
                  "publisher": "European Union (EU consolidated financial sanctions list)",
                  "status": "ok",
                  "version": "2026-09-22"
                },
                {
                  "fetched_at": "2026-10-06T12:00:11Z",
                  "id": "uk_sanctions_list",
                  "publisher": "UK FCDO (UK Sanctions List)",
                  "status": "ok",
                  "version": "2026-09-29"
                },
                {
                  "fetched_at": "2026-10-06T06:00:00Z",
                  "id": "scamsniffer_addresses",
                  "publisher": "ScamSniffer (open, 7-day delayed)",
                  "status": "ok",
                  "version": "5b0e3f1d9a27c64e8f13b2a7d05c9e41f6a8b3c27d1e09f4a6b5c8d7e2f1a0b9"
                },
                {
                  "block": 36412290,
                  "fetched_at": "2026-10-06T12:30:00Z",
                  "id": "rpc:base",
                  "publisher": "public RPC (rail provider list)",
                  "status": "ok"
                }
              ],
              "subject": {
                "chain": "base",
                "kind": "address",
                "normalized": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
                "value": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913"
              },
              "subject_salt": "9f2c4e6a8b0d1f3e5a7c9e1b3d5f7a9c",
              "verdict": "pass",
              "verdict_meaning": "Nothing was found in the lists named. A 'no match' means nothing was found in the lists named. It is not a clearance."
            },
            "type": "json"
          }
        },
        "schema": {
          "$schema": "https://json-schema.org/draft/2020-12/schema",
          "properties": {
            "input": {
              "properties": {
                "body": {
                  "properties": {
                    "params": {
                      "additionalProperties": false,
                      "properties": {
                        "address": {
                          "deprecated": true,
                          "description": "deprecated alias of value",
                          "maxLength": 200,
                          "type": "string"
                        },
                        "chain": {
                          "default": "base",
                          "description": "base | ethereum | polygon | arbitrum | optimism | solana; default base for an EVM address, solana for a Solana address",
                          "enum": [
                            "base",
                            "ethereum",
                            "polygon",
                            "arbitrum",
                            "optimism",
                            "solana"
                          ],
                          "type": "string"
                        },
                        "max_age_s": {
                          "default": 3600,
                          "description": "the oldest cached result you accept, 0-86400 seconds, default 3600; 0 forces fresh on-chain reads",
                          "maximum": 86400,
                          "minimum": 0,
                          "type": "integer"
                        },
                        "ref": {
                          "description": "your own job or payment id, up to 64 printable characters, echoed back and bound into the signed receipt",
                          "maxLength": 64,
                          "pattern": "^[\\x20-\\x7E]{1,64}$",
                          "type": "string"
                        },
                        "value": {
                          "description": "the wallet or contract address, a 0x-prefixed 40-hex EVM address or a base58 Solana address",
                          "maxLength": 200,
                          "minLength": 1,
                          "type": "string"
                        }
                      },
                      "required": [
                        "value"
                      ],
                      "type": "object"
                    }
                  },
                  "required": [
                    "params"
                  ],
                  "type": "object"
                },
                "bodyType": {
                  "enum": [
                    "json"
                  ],
                  "type": "string"
                },
                "method": {
                  "enum": [
                    "POST"
                  ],
                  "type": "string"
                },
                "type": {
                  "const": "http",
                  "type": "string"
                }
              },
              "required": [
                "type",
                "method",
                "bodyType",
                "body"
              ],
              "type": "object"
            },
            "output": {
              "type": "object"
            }
          },
          "required": [
            "input"
          ],
          "type": "object"
        }
      }
    },
    "lastUpdated": "2026-10-12T21:36:03.036Z",
    "quality": {
      "l30DaysTotalCalls": 6,
      "l30DaysUniquePayers": 6,
      "lastCalledAt": "2026-10-12T21:36:02.704Z"
    },
    "resource": "https://twin.unykorn.org/check/address",
    "tags": [
      "pre-flight",
      "repeat-use",
      "agent gate",
      "verdict",
      "signed receipt"
    ],
    "type": "http",
    "x402Version": 2
  },
  "source": "x402_bazaar",
  "summary": "Check before you pay or trade: pass / review / block for one wallet or contract address (EVM chains, Solana). Use it before you pay, trade with or approve an address: one cheap call returns pass, review or block with the reasons and the list dates."
}

What the leaf hashes

{"body":"a3fc6a5cd5cde27c8efb02d41a8dc16fa18961bcf6247b6a8ef0696a7eb21cf9","id":123013,"kind":"listing","method":"baseline/1","observed_us":1793025622532107,"prev":null,"subject":"x402_bazaar:https://twin.unykorn.org/check/address","subject_kind":"source_record"}

Proof

Fold these into the leaf in order, hashing each sorted pair with keccak256, to reach the root of 2026-10-26 (296695 rows).

1. 0xfe8d7c95c071c3cba890eccb3c154386ae1c16c9351b46e1f6ebe890ea76407a
2. 0x2fa615a110f1a6cea14896904b7c2f562eb8d94362b8af32c0d4240e789dc80c
3. 0x2e556c65395f420c9cf76101fe3f11fdfb285098b903814aa8deb01dfe4376de
4. 0x2a7d3956a8ac67231918c8ced6a7fbc303a845c17fa77b839ea612f43a0aba85
5. 0xf33100c467b41bc15037d44e98f4d9b7e8f8d6a4c46965453ab43f6a6c256924
6. 0x379ba0076a838d199053aeafe404ccd85b37cb1792cb8d1319947d381477218d
7. 0x9dc312190f7625bb9c09983f072350249af65587413df740a168502ca413b3b7
8. 0x6d76ea8047c9a89cab3dae4b8ff217a79391cb1c7b4bb8532525fd1e3d5d6352
9. 0x019fd7af1a64758c919538de9f4625c6d2637677a31ff3b1e253e94fb2fa13c5
10. 0x00c341aeb80a00104d56004ab29bf5c11c63c2f7f5da2e77fcaa830f7ba9da8a
11. 0xf0e3125fdb80cc0fbd2c1ed68c94834a74c7a387a89a1ab6de49183f24f78649
12. 0xbd264414f726ecec85a6b231446a7d5db56b5a61f8c3f471b7913d982daa291d
13. 0x74a0a08e4e7ab9aa5bfbead33dec7e1c7e8e364cff69a63720d764bbe987aadc

Day root

0xf43e8dcc3d451a4788b26be904c55e8c4c0fa75c9666796c51db38d37e2c0df8

Chained

0x702d5ac508f08b0d1accf36af25822d8e5660367494edd17a642fb61e158a57a

Published

On Arc Testnet, block 69251483: 0x495162f8936e19f0039918feebe6c307f327cd6bf8c37219620b1970041fa9ae