Evidence row 1259268

What was observed

{
  "endpoints": [
    [
      "x402",
      "https://getamber.dev/api/v1/contracts"
    ]
  ],
  "name": "getamber.dev",
  "owner_address": null,
  "raw": {
    "caip2_networks": [
      "eip155:8453"
    ],
    "category": "",
    "description": "",
    "domain": "getamber.dev",
    "endpoints": [
      {
        "description": "Ambr (ambr.run): create a Ricardian contract that an AI agent signs on behalf of its principal, a person or company. Call it when your agent agrees a deal with another party (an API or compute service, a purchase, a subscription, or a delegation of authority) and needs a signed written record. Returns legal text and machine-readable JSON bound by one SHA-256 hash, plus reader and sign links; the parties sign with their wallets. Templates: GET /api/v1/templates.",
        "method": "POST",
        "parameters": [
          {
            "default": null,
            "description": "",
            "enumValues": [],
            "example": null,
            "group": "body",
            "name": "parameters",
            "required": false,
            "type": "object"
          },
          {
            "default": null,
            "description": "",
            "enumValues": [],
            "example": null,
            "group": "body",
            "name": "principal_declaration",
            "required": false,
            "type": "object"
          },
          {
            "default": null,
            "description": "",
            "enumValues": [],
            "example": "a1-service-purchase",
            "group": "body",
            "name": "template",
            "required": false,
            "type": "string"
          }
        ],
        "pricing": {
          "amount": "0.2",
          "currency": "USDC",
          "maxAmount": "",
          "minAmount": "",
          "network": "eip155:8453",
          "scheme": "exact"
        },
        "providerName": "",
        "quality": {
          "l30DaysTotalCalls": "2",
          "l30DaysUniquePayers": "2"
        },
        "serviceName": "Ambr",
        "tags": [
          "contracts",
          "legal",
          "agent-identity",
          "ricardian",
          "delegation"
        ],
        "url": "https://getamber.dev/api/v1/contracts"
      }
    ],
    "enriched": false,
    "iconUrl": "https://res.cloudinary.com/bdb-prod/image/upload/c_fill,ar_1:1,w_256,h_256,f_auto,q_auto/v1793279085/bazaar-icons/25c05cfd00a58541.png",
    "id": "getamber-dev",
    "integrationType": "",
    "isNew": false,
    "name": "getamber.dev",
    "networks": [
      "Base"
    ],
    "priceSummary": {
      "avgCostBasis": "exact",
      "avgCostPerTransaction": "0.2",
      "currency": "USDC",
      "maxAmount": "0.2",
      "minAmount": "0.2"
    },
    "provider": "getamber.dev",
    "providerUrl": "",
    "serviceName": "Ambr",
    "tags": [
      "contracts",
      "legal",
      "agent-identity",
      "ricardian",
      "delegation"
    ]
  },
  "source": "agentic_market",
  "summary": ""
}

What the leaf hashes

{"body":"c7f9a3f74215f0b0d172130986848b1c5d7313236543df586643017908ccf285","id":1259268,"kind":"listing","method":"sync.agentic_market/1","observed_us":1793384211726116,"prev":1035926,"subject":"agentic_market:getamber-dev","subject_kind":"source_record"}

Proof

Fold these into the leaf in order, hashing each sorted pair with keccak256, to reach the root of 2026-10-30 (243099 rows).

1. 0x3f1c2126bf4075541970096798a61816f780897e76970b42c8a0c1258654d474
2. 0xa1a626aac0fae4fe97a5bf8108bd2c6d9f5fd5424ebcc5adc281424aad71c979
3. 0x8e50a4d560a0d35c1bdf807b5471e7aedbf578fb857847ee489425ab2a72498b
4. 0x5fd9319495d76d546323e1fdcc57c8b24594c927663eb73ea6d30987a2f02858
5. 0x6258b7b70cd6235b41eb3d08e02146362a95839442c70bc29ee6ba353009e320
6. 0x048b29f30416dcad10d1acbc35c8c02ff3cb49bfa70430d13957522b7c5a9d55
7. 0x99af8c35122d03c3d4cbeb706d73e8f5d0d71620bf8c422fa2953e63bdde3d84
8. 0x9d8ef6321abc41d8089d3a895bc63592c16bd7b9524ae87e6b8102b6321dd60c
9. 0xe1d5205b5ec2007fa4aa660813e7f860d5d2c06751a7e5fe3d1b4c99e9edf12e
10. 0x0bf54902ab978d48afc99a301ee55111afe82f683792c11fe27c05deab8be6af
11. 0x6a7a33f15a383948e9a7025c9fb5fb0e532955b6d56defd8a6963b887f46040b
12. 0xb1109bc2a9b5b36510889d47439919e157761a542485fe2ef26db4048f801107
13. 0x05e3745d6b84753d0312b870094fda67db896c86a58c40e543116da79d764c1f
14. 0x775f1cf1eda93a75a3d05aa8e7b45b258d1de91c21741301b1aa3d048fba588c
15. 0xd7d5c71ec079257a487d0494049c896f97cf8bf7d89a43fea539777c548c96f3
16. 0x50ca74d7c8f26a46e9c3b8fb5e7f9ebcdfdcc1b7c863db3b6d2b7c12e24ca66f
17. 0xb0c9ef42e725578748f3119c9dbebf2fc437266bda013df29f98ed3ebe621403
18. 0x30a81d8fcef4e8f9e2877c62796cfc5612fc1b251127d531dee28f8dbd5c5147

Day root

0x0826c7ad6039e06a2360ca0a4a3a4fe7f2626c6dc19f71a37599386f78b39875

Chained

0x36b4c8a1063758f0b8765fa1bdf75fa92fb543cc183add3e261880ee2bd1f822

Published

On Arc Testnet, block 69923247: 0x8704744146c6967c8abc9e9a99de4db7283b29e840922ea83a69b6fe776e6861