Evidence row 75051

What was observed

{
  "endpoints": [
    [
      "x402",
      "https://factstamp.agentrails.workers.dev/watch/portfolio"
    ]
  ],
  "name": "factstamp.agentrails.workers.dev/watch/portfolio",
  "owner_address": "0xc3bcd24a2b350cc73b8516b2a0539a323b42cc32",
  "raw": {
    "accepts": [
      {
        "amount": "5000000",
        "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
        "description": "Watch a whole list at once, when a bibliography or a dependency manifest has to stay true: up to 25 citations or package versions re-checked every day for 30 days under one token. US$5 a portfolio — 20 cents a reference, under a cent a check. Every reference is answered and signed on purchase, and each real change gets its own signed receipt. Nothing is sent when nothing changed. Pay per call here, or redeem a prepaid pack code (100 credits).",
        "extra": {
          "name": "USD Coin",
          "version": "2"
        },
        "maxAmountRequired": "5000000",
        "maxTimeoutSeconds": 300,
        "mimeType": "application/json",
        "network": "eip155:8453",
        "payTo": "0xc3bcd24a2b350cc73b8516b2a0539a323b42cc32",
        "resource": "https://factstamp.agentrails.workers.dev/watch/portfolio",
        "scheme": "exact"
      }
    ],
    "description": "Watch a whole list at once, when a bibliography or a dependency manifest has to stay true: up to 25 citations or package versions re-checked every day for 30 days under one token. US$5 a portfolio — 20 cents a reference, under a cent a check. Every reference is answered and signed on purchase, and each real change gets its own signed receipt. Nothing is sent when nothing changed. Pay per call here, or redeem a prepaid pack code (100 credits).",
    "extensions": {
      "bazaar": {
        "info": {
          "input": {
            "body": {
              "items": [
                {
                  "kind": "citation",
                  "query": "10.1038/nature12373"
                },
                {
                  "ecosystem": "npm",
                  "kind": "package",
                  "package": "express@4.18.2"
                }
              ],
              "webhook": "https://example.com/factstamp/hook"
            },
            "bodyType": "application/json",
            "method": "POST",
            "type": "http"
          },
          "output": {
            "example": {
              "expires_at": "2026-11-05T06:30:00.000Z",
              "item_count": 25,
              "paid_with": {
                "list_price_usd": 5,
                "rail": "x402_pay_per_call",
                "settlement": {
                  "success": true
                }
              },
              "per_unit": "US$5 for 25 references over 30 days: US$0.20 a reference, about 0.67 of a cent a check.",
              "portfolio_id": "3a91c05f8d21e44077",
              "read_url": "https://factstamp.agentrails.workers.dev/portfolio/3a91c05f8d21e44077",
              "stop_url": "https://factstamp.agentrails.workers.dev/portfolio/3a91c05f8d21e44077/stop",
              "token": "fp_7c2a… (shown once)"
            },
            "type": "json"
          }
        },
        "schema": {
          "$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": "2026-10-05T21:27:00.42Z",
    "quality": {
      "l30DaysTotalCalls": 1,
      "l30DaysUniquePayers": 1,
      "lastCalledAt": "2026-10-05T21:26:59.926Z"
    },
    "resource": "https://factstamp.agentrails.workers.dev/watch/portfolio",
    "type": "http",
    "x402Version": 2
  },
  "source": "x402_bazaar",
  "summary": "Watch a whole list at once, when a bibliography or a dependency manifest has to stay true: up to 25 citations or package versions re-checked every day for 30 days under one token. US$5 a portfolio — 20 cents a reference, under a cent a check. Every reference is answered and signed on purchase, and each real change gets its own signed receipt. Nothing is sent when nothing changed. Pay per call here, or redeem a prepaid pack code (100 credits)."
}

What the leaf hashes

{"body":"8e3b356974d92ca4f13f922f4286c16248da12033e833ad010ee456835d84021","id":75051,"kind":"listing","method":"baseline/1","observed_us":1793025489992067,"prev":null,"subject":"x402_bazaar:https://factstamp.agentrails.workers.dev/watch/portfolio","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. 0x97011875b66fabff7d17a2420b0659dc668fb5c7daf09dbc70f8f9efda1490e2
2. 0x53d6f57d6cbcc727a27bd3d9b7115cead72dbcaa84192834bdd994e547991f2c
3. 0xb7cd84a4bb6cac08e39331f78d13b3c261ff4d9716a7639ab11544e3de9b3c5f
4. 0xb065c0171397719cabe42fe98705c0d3888074896394da1b19aa23fc79afd096
5. 0x58cb8fb0a31b70fcd0eb888f07c21ce8f05156225ef7f1ce9514b7285f5cf651
6. 0xc6890380fa9c5ff6731c03ed5e1ef9418cf6933479766f01c697d06f4ae55e1b
7. 0x06b99e858c392a8833407b23a6309e98fc5e3291e9e0e8e18a65a32b1f06686a
8. 0xb0df266351ebc1625735fc3506b3ebffeba2b26ca38024e4fada3194b0c92b73
9. 0x71b0b534cd4e91b815cfc8f756a9c2e35e77f3892e37283b7c97c79b860730ec
10. 0x754fcde88a635fd610b97b1614bdabd78715f683ecb7fc4c8b16661d8784837a
11. 0x33109041c3d120f5b9ce2c3270a8fc409acfab4e749a0ff42fa0744354f87c17
12. 0xd43b73151a0c2d9a61f2ae73ed148938b0e6b05c81197f7eebbf95dba38a7004
13. 0xb314422bc93e7f1c0b706c67f5fff96c5ddf74934bb2fe8ab6291ae016907e37
14. 0x49062da782c4f73855ddd5fdd51840749f928b5f17d1ce75ac50f2d829104e72
15. 0xf0bd63870f0bb378fa300bd33563050dcb7b3e02b44eb3ee550c1c534ec4b246
16. 0x1ac20d30773e1f4f2f811540e9a99b5cca9177c9e2e029acc0d80cf3f1d11f0f
17. 0xd21942ae3214eff88e08ab04884fd4b11958b51af9a0741b7668e2d07a2c56c9
18. 0x9a9024edb5069d88a324facb310a5ce8e495214bbaa968f077bede437390194f
19. 0x9b9ce5b74b9bab5121612ef6b64920a8d453cbf311096a423eef9702747e868a

Day root

0xf43e8dcc3d451a4788b26be904c55e8c4c0fa75c9666796c51db38d37e2c0df8

Chained

0x702d5ac508f08b0d1accf36af25822d8e5660367494edd17a642fb61e158a57a

Published

On Arc Testnet, block 69251483: 0x495162f8936e19f0039918feebe6c307f327cd6bf8c37219620b1970041fa9ae