Evidence row 123532

What was observed

{
  "endpoints": [
    [
      "x402",
      "https://underground.substratesymposium.com/buy/staghorn_fern"
    ]
  ],
  "name": "underground.substratesymposium.com/buy/staghorn_fern",
  "owner_address": "0xa3babb36564b0383a82c617050306ee30fd18e08",
  "raw": {
    "accepts": [
      {
        "amount": "10000",
        "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
        "extra": {
          "name": "USD Coin",
          "version": "2"
        },
        "maxTimeoutSeconds": 300,
        "network": "eip155:8453",
        "payTo": "0xA3bAbB36564b0383a82c617050306EE30fd18E08",
        "scheme": "exact"
      },
      {
        "amount": "10000",
        "asset": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
        "extra": {
          "feePayer": "CjNFTjvBhbJJd2B5ePPMHRLx1ELZpa8dwQgGL727eKww"
        },
        "maxTimeoutSeconds": 300,
        "network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
        "payTo": "5HK2dGaaquDWFnYWaWhMzMYtbcDsqeq5biJ2PMtX1tkN",
        "scheme": "exact"
      }
    ],
    "description": "Staghorn Fern (Divergence) — Study of unconventional growth for exploring alternative approaches.",
    "extensions": {
      "bazaar": {
        "info": {
          "input": {
            "method": "GET",
            "queryParams": {},
            "type": "http"
          },
          "output": {
            "example": {
              "content": "Study of unconventional growth for exploring alternative approaches.",
              "delivered_at": "2026-04-24T10:00:00Z",
              "product": "staghorn_fern",
              "title": "Staghorn Fern (Divergence)"
            },
            "type": "json"
          }
        },
        "schema": {
          "$schema": "https://json-schema.org/draft/2020-12/schema",
          "properties": {
            "input": {
              "additionalProperties": false,
              "properties": {
                "method": {
                  "enum": [
                    "GET"
                  ],
                  "type": "string"
                },
                "queryParams": {
                  "properties": {},
                  "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": "2026-10-11T01:01:13.493Z",
    "quality": {
      "l30DaysTotalCalls": 2,
      "l30DaysUniquePayers": 2,
      "lastCalledAt": "2026-10-11T01:01:13.327Z"
    },
    "resource": "https://underground.substratesymposium.com/buy/staghorn_fern",
    "type": "http",
    "x402Version": 2
  },
  "source": "x402_bazaar",
  "summary": "Staghorn Fern (Divergence) — Study of unconventional growth for exploring alternative approaches."
}

What the leaf hashes

{"body":"a4dfc356a60933bff1f0f12edd319d3e479c858105314dde392e1df6d795f6ec","id":123532,"kind":"listing","method":"baseline/1","observed_us":1793025623290560,"prev":null,"subject":"x402_bazaar:https://underground.substratesymposium.com/buy/staghorn_fern","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. 0x9c0ae3e7001c683a6c4de447a474b8190c994864ad367fd94e0cce6134017287
2. 0x8d4642c109c53018a1907dd60cf35816a4ee0d0d35c2a36b1af1bf7ca490ca2f
3. 0xc956696178400a21e34cb04e2b0f4bde7deb399c10ec1aa3fdfa0fd053a31265
4. 0x0953d95cafb172e31cf0cb6f1a91b3ae56783982217a1c7d719a516ce7f5ff25
5. 0xf0ca42d6e54fb6c24a364cf3922a85c1ea823fb96d302a5a30297a0a43f555df
6. 0xd9dfe0ad974c15308fa7c3b1fcced84a8feb69ee65a78bf2758301bf18208418
7. 0x60d359c1c67d8c532b8ee52eaf13f147b15bdee9bd2f1456f4909c298683d852
8. 0xf7e4d5174114be53b31e719187eb16e7768e427d1137ccd1d68cb68cca7faa61
9. 0x6ed3498d68754cd5612ca4de245ebb82cea9cf9210ccc5f545ee627e71912c9d
10. 0x5a1f256cf13b45bc022bfed6d7f60b9340951c3cdb79185c1910586f812c10f2
11. 0xb79ffe067e46a7abdcd59167d8556c652ce9f0f297fbf7808095f49485591c09
12. 0xd253212b3d5f7245423cc951067880bc2069b90eeee521363fcee13ebbd606ae
13. 0x99a4e0f8b23989f58b564c1b6e419578b4388f6e0dbf6e50177c1bd476302d0e
14. 0x6713795704ddd9c528d421fadd9cc96b0200a4ddbba84f88e718d4968dde888b
15. 0x62a900133713919f4eed33d8336876b7a6d538233b8a4f3ed03b29aa44f5bad0
16. 0x1ac20d30773e1f4f2f811540e9a99b5cca9177c9e2e029acc0d80cf3f1d11f0f
17. 0xd21942ae3214eff88e08ab04884fd4b11958b51af9a0741b7668e2d07a2c56c9
18. 0x9a9024edb5069d88a324facb310a5ce8e495214bbaa968f077bede437390194f
19. 0x9b9ce5b74b9bab5121612ef6b64920a8d453cbf311096a423eef9702747e868a

Day root

0xf43e8dcc3d451a4788b26be904c55e8c4c0fa75c9666796c51db38d37e2c0df8

Chained

0x702d5ac508f08b0d1accf36af25822d8e5660367494edd17a642fb61e158a57a

Published

On Arc Testnet, block 69251483: 0x495162f8936e19f0039918feebe6c307f327cd6bf8c37219620b1970041fa9ae