Evidence row 63627

What was observed

{
  "endpoints": [
    [
      "x402",
      "https://agents.factstamp.dev/package"
    ]
  ],
  "name": "agents.factstamp.dev/package",
  "owner_address": "0xc3bcd24a2b350cc73b8516b2a0539a323b42cc32",
  "raw": {
    "accepts": [
      {
        "amount": "20000",
        "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
        "description": "Reports on a dependency at the point of installation. Give a package and, optionally, a version with its ecosystem (npm, PyPI, crates.io); the answer says whether that exact version exists, whether it is yanked or deprecated, and every advisory OSV lists against it. A version that was never published returns not_found with the real versions nearest to it. Verdicts: verified, advisory, yanked, not_found, unknown.",
        "extra": {
          "name": "USD Coin",
          "version": "2"
        },
        "maxAmountRequired": "20000",
        "maxTimeoutSeconds": 300,
        "mimeType": "application/json",
        "network": "eip155:8453",
        "payTo": "0xc3bcd24a2b350cc73b8516b2a0539a323b42cc32",
        "resource": "https://agents.factstamp.dev/package",
        "scheme": "exact"
      }
    ],
    "description": "Reports on a dependency at the point of installation. Give a package and, optionally, a version with its ecosystem (npm, PyPI, crates.io); the answer says whether that exact version exists, whether it is yanked or deprecated, and every advisory OSV lists against it. A version that was never published returns not_found with the real versions nearest to it. Verdicts: verified, advisory, yanked, not_found, unknown.",
    "extensions": {
      "bazaar": {
        "info": {
          "input": {
            "body": {
              "ecosystem": "npm",
              "package": "express@4.18.2"
            },
            "bodyType": "application/json",
            "method": "POST",
            "type": "http"
          },
          "output": {
            "example": {
              "advisories": [
                {
                  "id": "GHSA-qw6h-vgh9-j6wx"
                },
                {
                  "id": "GHSA-rv95-896h-c2vc"
                }
              ],
              "deprecated": null,
              "detail": "2 advisory record(s) published against express@4.18.2.",
              "ecosystem": "npm",
              "latest": "5.2.1",
              "name": "express",
              "published_at": "2022-10-08T20:14:32.495Z",
              "query": "express@4.18.2",
              "sources": [
                {
                  "http_status": 200,
                  "name": "npm registry"
                },
                {
                  "http_status": 200,
                  "name": "OSV"
                }
              ],
              "verdict": "advisory",
              "version": "4.18.2",
              "yanked": false
            },
            "type": "json"
          }
        },
        "schema": {
          "$schema": "https://json-schema.org/draft/2020-12/schema",
          "additionalProperties": false,
          "properties": {
            "input": {
              "additionalProperties": true,
              "properties": {
                "body": {
                  "type": "object"
                },
                "bodyType": {
                  "const": "application/json"
                },
                "method": {
                  "const": "POST"
                },
                "type": {
                  "const": "http"
                }
              },
              "required": [
                "type",
                "method"
              ],
              "type": "object"
            },
            "output": {
              "additionalProperties": true,
              "properties": {
                "example": {
                  "type": "object"
                },
                "type": {
                  "const": "json"
                }
              },
              "required": [
                "type",
                "example"
              ],
              "type": "object"
            }
          },
          "required": [
            "input",
            "output"
          ],
          "type": "object"
        }
      }
    },
    "lastUpdated": "2026-10-23T22:34:19.842Z",
    "quality": {
      "l30DaysTotalCalls": 3,
      "l30DaysUniquePayers": 3,
      "lastCalledAt": "2026-10-23T22:34:19.298Z"
    },
    "resource": "https://agents.factstamp.dev/package",
    "type": "http",
    "x402Version": 2
  },
  "source": "x402_bazaar",
  "summary": "Reports on a dependency at the point of installation. Give a package and, optionally, a version with its ecosystem (npm, PyPI, crates.io); the answer says whether that exact version exists, whether it is yanked or deprecated, and every advisory OSV lists against it. A version that was never published returns not_found with the real versions nearest to it. Verdicts: verified, advisory, yanked, not_found, unknown."
}

What the leaf hashes

{"body":"47e7c9cf7499c78f6ec42c0efc40f04aa862ffe7ee23f1b88e79354782fe5942","id":63627,"kind":"listing","method":"baseline/1","observed_us":1793025455223905,"prev":null,"subject":"x402_bazaar:https://agents.factstamp.dev/package","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. 0xbd300cb8887d09c6f0170aef7cc22c952c71ab9a46b85f074ed01f587a36fdea
2. 0x2ce3e2cfa90368a6bb01201be40e10ba58edd532a786d3a16b0858762154fc16
3. 0x86c5bdb69a4d2586ef1e2c877236e66cb0f66ec28e3dfab6494e0c26e00117d6
4. 0x831aa3b3250f3647b80262c23c81d71c4f91eeb321f2fab41a3f77c3e7e06aaf
5. 0x1abd4fdde8dfa3411635d66e99411822e2fe13ebc2cc4e05ec7f8e01e14840cf
6. 0x5ffe31fcbd87dfe6eb02ca222339ffd8686698648106d32a144a354ec4849077
7. 0x54aeb4117ccc33a90a9307c08aaeade8290bf0fb950c0e77d16bb23be7eb80c6
8. 0xbb0492b5a85a05fb1459bbb9342d60a25cad979e1b8a0756dc969e45d4c6326a
9. 0x64a2f21b5af86d870bb79dbf55048006abbad7fee92c3e44e2ea5cf5c80c86af
10. 0x70fe24d78b58f8abec40e79e3452c3ede45cf737f4a71973b737bc6cdda64101
11. 0x135102b1595b48b3b1604ed9b55766b9654dc2e33631a8be15cb316d09a36075
12. 0xa6f71fd6c3a59323bf7c5386a54935b14c555d8c717289cc73700f56d86994cd
13. 0xd5b5bb5812612371a70171b2252d90e95bb0581ea5a3be198122adc8442e4f79
14. 0xf692ce2b0a640ec9f75aa960e5fb1c2c7091a04e24881798735752c19014e519
15. 0x9f68b5e15459cb62b8c0cd4c124fa61c74147b4a5755a200fbecd21a581635d1
16. 0x123ec8bee20ddc55223eeef5a4f4d6c4b6416515adbb911c56759f5cde56e452
17. 0xd0651cb9bc8155eb52b5247d506e74b8a935057dc190ba52091702ac25ed3a40
18. 0x9a9024edb5069d88a324facb310a5ce8e495214bbaa968f077bede437390194f
19. 0x9b9ce5b74b9bab5121612ef6b64920a8d453cbf311096a423eef9702747e868a

Day root

0xf43e8dcc3d451a4788b26be904c55e8c4c0fa75c9666796c51db38d37e2c0df8

Chained

0x702d5ac508f08b0d1accf36af25822d8e5660367494edd17a642fb61e158a57a

Published

On Arc Testnet, block 69251483: 0x495162f8936e19f0039918feebe6c307f327cd6bf8c37219620b1970041fa9ae