Evidence row 425492

What was observed

{
  "endpoints": [
    [
      "x402",
      "https://api.magentlab.com/api/codes/search"
    ]
  ],
  "name": "magent",
  "owner_address": "0x836be278f1739fb4308091cd1852f7971bc19ee2",
  "raw": {
    "accepts": [
      {
        "amount": "5000",
        "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
        "extra": {
          "assetTransferMethod": "eip3009",
          "name": "USD Coin",
          "paymentFlow": "upfront",
          "resourceUrl": "https://api.magentlab.com/api/codes/search",
          "version": "2"
        },
        "maxTimeoutSeconds": 600,
        "network": "eip155:8453",
        "payTo": "0x836Be278f1739fB4308091cD1852F7971Bc19Ee2",
        "scheme": "exact"
      },
      {
        "amount": "5000",
        "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
        "extra": {
          "assetTransferMethod": "eip3009",
          "name": "USD Coin",
          "receiverAuthorizer": "0x3721824a31197dcDD2984cF43b92B6cc8A87c0Fb",
          "version": "2",
          "withdrawDelay": 86400
        },
        "maxTimeoutSeconds": 600,
        "network": "eip155:8453",
        "payTo": "0x836Be278f1739fB4308091cD1852F7971Bc19Ee2",
        "scheme": "batch-settlement"
      }
    ],
    "description": "Map a natural-language drug, diagnosis, or lab phrase to a current RxNorm, ICD-10-CM, or LOINC code. Use when an agent must not hallucinate or invent a billing/pharmacy code.",
    "extensions": {
      "bazaar": {
        "info": {
          "iconUrl": "https://api.magentlab.com/favicon.ico",
          "input": {
            "method": "GET",
            "queryParams": {
              "billable_only": true,
              "include_obsolete": false,
              "limit": 5,
              "min_score": 35,
              "query": "Tylenol 500mg",
              "system": "rxnorm",
              "tty": "SCD"
            },
            "type": "http"
          },
          "output": {
            "example": {
              "catalog": {
                "coverage": "seed",
                "coverage_meaning": "Compiled seed catalog. Production coverage=full is gold-gated Current Prescribable RxNorm + ICD-10-CM + LOINC, not complete monthly RxNorm or UMLS.",
                "notes": "ICD-10 entries are ICD-10-CM (US claims), not WHO ICD-10. RxNorm codes are RxCUI. LOINC codes are official LOINC numerics. coverage=full never means complete UMLS.",
                "source": "magent curated seed",
                "stale": false,
                "systems": [
                  "rxnorm",
                  "icd10",
                  "loinc"
                ],
                "verified_at": null,
                "version": "2026.08-wedge"
              },
              "disclaimer": "Not a medical device. Deterministic published-formula or published-code output for autonomous agents. A licensed clinician remains responsible for patient care and billing submissions.",
              "match_count": 1,
              "match_quality": "high",
              "matches": [
                {
                  "billable": null,
                  "code": "198440",
                  "display": "acetaminophen 500 MG Oral Tablet",
                  "obsolete": false,
                  "score": 95,
                  "status": "current",
                  "system": "rxnorm",
                  "tty": "SCD"
                }
              ],
              "query": "Tylenol 500mg",
              "system": "rxnorm"
            },
            "type": "json"
          }
        },
        "schema": {
          "$schema": "https://json-schema.org/draft/2020-12/schema",
          "properties": {
            "input": {
              "additionalProperties": false,
              "properties": {
                "headers": {
                  "additionalProperties": {
                    "type": "string"
                  },
                  "type": "object"
                },
                "method": {
                  "enum": [
                    "GET",
                    "HEAD",
                    "DELETE"
                  ],
                  "type": "string"
                },
                "queryParams": {
                  "properties": {
                    "billable_only": {
                      "description": "ICD-10-CM: return only HIPAA billable codes, not headers. Default true.",
                      "type": "boolean"
                    },
                    "include_obsolete": {
                      "description": "Include deprecated/obsolete codes. Default false.",
                      "type": "boolean"
                    },
                    "limit": {
                      "description": "Number of ranked matches to return (1-25). Default 5.",
                      "type": "integer"
                    },
                    "min_score": {
                      "description": "Minimum rank score 0-100. Default 35.",
                      "type": "integer"
                    },
                    "query": {
                      "description": "Natural-language drug, diagnosis, or lab description. Max 512 characters. Do not send patient names.",
                      "type": "string"
                    },
                    "system": {
                      "description": "Restrict to rxnorm, icd10 (ICD-10-CM), or loinc. Omit to search all.",
                      "enum": [
                        "rxnorm",
                        "icd10",
                        "loinc"
                      ],
                      "type": "string"
                    },
                    "tty": {
                      "description": "Restrict term type. Pharmacy orders typically want SCD. ICD-10-CM is CM; LOINC is LN.",
                      "enum": [
                        "SCD",
                        "SBD",
                        "IN",
                        "PIN",
                        "MIN",
                        "BN",
                        "GPCK",
                        "BPCK",
                        "DF",
                        "SCDC",
                        "SBDC",
                        "SCDF",
                        "SBDF",
                        "CM",
                        "LN"
                      ],
                      "type": "string"
                    }
                  },
                  "required": [
                    "query"
                  ],
                  "type": "object"
                },
                "type": {
                  "const": "http",
                  "type": "string"
                }
              },
              "required": [
                "type",
                "method"
              ],
              "type": "object"
            },
            "output": {
              "properties": {
                "example": {
                  "type": "object"
                },
                "type": {
                  "type": "string"
                }
              },
              "required": [
                "type"
              ],
              "type": "object"
            }
          },
          "required": [
            "input"
          ],
          "type": "object"
        }
      }
    },
    "lastUpdated": "2026-10-27T00:19:09.45Z",
    "quality": {
      "l30DaysTotalCalls": 9,
      "l30DaysUniquePayers": 4,
      "lastCalledAt": "2026-10-27T00:19:09.283Z"
    },
    "resource": "https://api.magentlab.com/api/codes/search",
    "serviceName": "magent",
    "tags": [
      "rxnorm",
      "icd10",
      "icd10cm",
      "loinc",
      "codes"
    ],
    "type": "http",
    "x402Version": 2
  },
  "source": "x402_bazaar",
  "summary": "Map a natural-language drug, diagnosis, or lab phrase to a current RxNorm, ICD-10-CM, or LOINC code. Use when an agent must not hallucinate or invent a billing/pharmacy code."
}

What the leaf hashes

{"body":"dd87224b064eba86f718e633b8df517e6cf1a96cbcfedb2e46cde3a2c7d7cb78","id":425492,"kind":"listing","method":"sync.x402_bazaar/1","observed_us":1793086110507577,"prev":417955,"subject":"x402_bazaar:https://api.magentlab.com/api/codes/search","subject_kind":"source_record"}

Proof

Fold these into the leaf in order, hashing each sorted pair with keccak256, to reach the root of 2026-10-27 (273461 rows).

1. 0xf2a82611ade4a718d6eb1b77a5a5a518e50e98499426d5672cd3ed5a41169290
2. 0x76aa861dae4a248d58fe80a096b56becbd7feb0adee945902c11808cd92b3b86
3. 0xe772bb5c87069da7825ec29dcd8996b12f1c0147d8c5b303e6b8143da98600dc
4. 0x9d85758dcd714ce9ee1322f7667d70d53235e2f3380e7d2c7fef3e535bd71fe1
5. 0x4617321fe4f9dcf4627811df3d4471d450eaac122396bb22ab71dad100adae43
6. 0x737e9a8cb69f4737934a9fbae5d7a14aa482bdd025c29a980a07d0fb64ffc067
7. 0x19127728ba5a0efa6fab4edb7253e183c97afb1fb141d7b754e0296553cef724
8. 0x071aafc7ac198dd9839aeca745b47a8a937037dcee055aa6e6250614f1b7f0aa
9. 0x2567febb2f7c2e15b8829ed14f89359493aafee67a36dd4be1834dc835bb43c2
10. 0x7a5eee890426b6641cf11b3104bdf050668453e657cb972314d327e9437f89b1
11. 0x28e43e19e4365cf2efadc5fbbf1bd505feed75b6f224b5173c306232c3944763
12. 0xc76e7a2a7d72384a3306a63b271737f83983bf378cba5d40efe61cfc57eb7d40
13. 0x47993ad5e402c748d96928c5127292d12f5f590d15cf544698f6bb348ad7dc9b
14. 0xce1471491ffb52101d7cd9884cca0fb37a9496f6e8250375054907d24a35d04f
15. 0x56f7109d4cde42492651beb1237c13cdcbf95e6fee2b2482391a2388e04c4629
16. 0x8745bd887f5ce9f7a49558fd2b04cdcd97a05ea9f8a23f62d0e80cb13d328b0f
17. 0xdf1105afdc109de3c09a98fc8a3864159ad964e6f49b635c105a27a1e1f14310
18. 0x2bf8151e5f157dd183b9de6fa00469551932a7a6e3f33a694895000ac9061197
19. 0x9fc354c0ea3efc3f1b6548bb77ea902a50f2c9647647ea61592efce2bd795699

Day root

0xdd77e5e99da32c3f154180d63e3c3e6fe11e896a2c6896412ef6b5c4bcf7e795

Chained

0x23bb4dfd09f55c15ac3962f53578e02c6114d5bfd9bb451cf8794fb6e2817ef4

Published

On Arc Testnet, block 69414147: 0xb2ebd83aafeb765a0ce66e76aefb133ed06606c98038fd56191e2bcd1dcb77b4