Evidence row 117837

What was observed

{
  "endpoints": [
    [
      "x402",
      "https://paket.halowerk.com/v1/artifact-hash"
    ]
  ],
  "name": "paket.halowerk.com/v1/artifact-hash",
  "owner_address": "0x2880edfff13100677bf97a3cbdf3bc34771c4e5e",
  "raw": {
    "accepts": [
      {
        "amount": "3000",
        "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
        "extra": {
          "asset": "USDC",
          "assetTransferMethod": "eip3009",
          "eip712Domain": {
            "chainId": 8453,
            "name": "USD Coin",
            "verifyingContract": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
            "version": "2"
          },
          "name": "USD Coin",
          "network_name": "Base Mainnet",
          "version": "2"
        },
        "maxTimeoutSeconds": 300,
        "network": "eip155:8453",
        "payTo": "0x2880EdfFF13100677Bf97A3CBdF3Bc34771C4E5E",
        "scheme": "exact"
      }
    ],
    "description": "Takes a file digest and answers which released package version it is. Useful for an artefact found in a container layer, a build directory or an attachment with no metadata attached. Hex and base64 input are both accepted and normalised, the digest length is checked against the declared algorithm before anything is fetched, and the response names every matching package version, since one artefact can be published under more than one coordinate.",
    "extensions": {
      "bazaar": {
        "info": {
          "input": {
            "body": {
              "algorithm": "SHA1",
              "hash": "3fabe08296e930c796c19e3c516979386ba9fd59"
            },
            "bodyType": "json",
            "method": "POST",
            "type": "http"
          }
        },
        "schema": {
          "$schema": "https://json-schema.org/draft/2020-12/schema",
          "properties": {
            "input": {
              "additionalProperties": false,
              "properties": {
                "body": {
                  "additionalProperties": false,
                  "properties": {
                    "algorithm": {
                      "default": "SHA1",
                      "description": "Digest algorithm. SHA1 is what most registries publish for archives.",
                      "enum": [
                        "SHA1",
                        "SHA256",
                        "SHA512",
                        "MD5"
                      ],
                      "type": "string"
                    },
                    "hash": {
                      "description": "The digest, hex or base64.",
                      "maxLength": 200,
                      "minLength": 16,
                      "type": "string"
                    }
                  },
                  "required": [
                    "hash"
                  ],
                  "type": "object"
                },
                "bodyType": {
                  "enum": [
                    "json",
                    "form-data",
                    "text"
                  ],
                  "type": "string"
                },
                "method": {
                  "enum": [
                    "POST",
                    "PUT",
                    "PATCH"
                  ],
                  "type": "string"
                },
                "type": {
                  "const": "http",
                  "type": "string"
                }
              },
              "required": [
                "type",
                "method",
                "bodyType",
                "body"
              ],
              "type": "object"
            }
          },
          "required": [
            "input"
          ],
          "type": "object"
        }
      }
    },
    "lastUpdated": "2026-10-08T05:40:44.565Z",
    "quality": {
      "l30DaysTotalCalls": 3,
      "l30DaysUniquePayers": 3,
      "lastCalledAt": "2026-10-08T05:40:44.134Z"
    },
    "resource": "https://paket.halowerk.com/v1/artifact-hash",
    "type": "http",
    "x402Version": 2
  },
  "source": "x402_bazaar",
  "summary": "Takes a file digest and answers which released package version it is. Useful for an artefact found in a container layer, a build directory or an attachment with no metadata attached. Hex and base64 input are both accepted and normalised, the digest length is checked against the declared algorithm before anything is fetched, and the response names every matching package version, since one artefact can be published under more than one coordinate."
}

What the leaf hashes

{"body":"16076117cf40a8601ca01fc885bfeafcc8bee701d497f26f5c8d34f5565f4cfd","id":117837,"kind":"listing","method":"baseline/1","observed_us":1793025611945796,"prev":null,"subject":"x402_bazaar:https://paket.halowerk.com/v1/artifact-hash","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. 0xfe7f067d9410b66c6f23cd7dcc1b0768b15b2f3b4e94ada222db30c3ea78644b
2. 0xc77b40c93f3f183c9c6bab27345fe9a217ceef3150eeafaa740b0a87a1367926
3. 0x2aa7956e8879b62a6ff5aa38a6e0d2cb60fe289847fd1fe5698a70475825325b
4. 0x53ba5d7b0c9d90a494ff049c4840f392a49866444fb68b16ec22774bf83aeed4
5. 0x6c7c183c40810dbf71a9dee08974996fcc74c60d8b539587b981db8b43e0600d
6. 0xb651d7b82ba61b3822f8a5f92a634801d1c823c45389370aa33904d3c562113b
7. 0x512ef9eb3a0a4bab982e403ce88ccf274dba415919038e47519d0beec123747c
8. 0x7ad0d42f1e58c2bb7ef2d8cfd72adf20cc71682078f0cf27ed58834122e6bcbe
9. 0x019fd7af1a64758c919538de9f4625c6d2637677a31ff3b1e253e94fb2fa13c5
10. 0x00c341aeb80a00104d56004ab29bf5c11c63c2f7f5da2e77fcaa830f7ba9da8a
11. 0xf0e3125fdb80cc0fbd2c1ed68c94834a74c7a387a89a1ab6de49183f24f78649
12. 0xbd264414f726ecec85a6b231446a7d5db56b5a61f8c3f471b7913d982daa291d
13. 0x74a0a08e4e7ab9aa5bfbead33dec7e1c7e8e364cff69a63720d764bbe987aadc

Day root

0xf43e8dcc3d451a4788b26be904c55e8c4c0fa75c9666796c51db38d37e2c0df8

Chained

0x702d5ac508f08b0d1accf36af25822d8e5660367494edd17a642fb61e158a57a

Published

On Arc Testnet, block 69251483: 0x495162f8936e19f0039918feebe6c307f327cd6bf8c37219620b1970041fa9ae