Evidence row 451613

What was observed

{
  "endpoints": [
    [
      "x402",
      "https://cc0.company/api/store/agent-services/cc0pedia/invoke"
    ]
  ],
  "name": "cc0.company/api/store/agent-services/cc0pedia/invoke",
  "owner_address": "0xba816f0708a91a2cde866f70e931d93e83dd6ef5",
  "raw": {
    "accepts": [
      {
        "amount": "10000",
        "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
        "extra": {
          "name": "USD Coin",
          "version": "2"
        },
        "maxTimeoutSeconds": 30,
        "network": "eip155:8453",
        "payTo": "0xBA816F0708a91A2CDe866F70e931D93e83Dd6eF5",
        "scheme": "exact"
      }
    ],
    "description": "cc0.company — x402 agent-services marketplace on Base (USDC): CC0 image generation, market-data digests, and third-party agent tools. This endpoint: cc0pedia — look up any CC0 creator, collection, or work by name/slug and get provenance, creator, license, on-chain pointers + full CC0 body. Synchronous JSON, $0.01/lookup.",
    "extensions": {
      "bazaar": {
        "info": {
          "input": {
            "body": {
              "query": "sartoshi"
            },
            "bodyType": "json",
            "method": "POST",
            "type": "http"
          },
          "output": {
            "example": {
              "creator": null,
              "entry": {
                "body": "## About\nsartoshi is the pseudonymous artist who created mfers…",
                "canonical_url": "https://cc0.company/cc0pedia/sartoshi",
                "collections": [
                  {
                    "chain": "ethereum",
                    "contract_address": "0x79fcdef22feed20eddacbb2587640e45491b757f",
                    "name": "mfers",
                    "opensea_url": "https://opensea.io/collection/mfers",
                    "year": "2021"
                  }
                ],
                "content_license": "CC0-1.0",
                "excerpt": "Pseudonymous creator of mfers — 10,000 hand-drawn CC0 PFPs minted on Ethereum on 30 Nov 2021, a cornerstone of the CC0 movement.",
                "id": "01KVXK6AQP7YCGRGA3WPQABQT3",
                "kind": "artist",
                "links": {
                  "twitter": "sartoshi_rip"
                },
                "profile_image": "https://cc0.company/…/sartoshi.png",
                "quality": "featured",
                "slug": "sartoshi",
                "tags": [
                  "mfers",
                  "cc0",
                  "pfp",
                  "ethereum"
                ],
                "title": "sartoshi"
              },
              "matched_by": "slug",
              "meta": {
                "canonical_url": "https://cc0.company/cc0pedia/sartoshi",
                "content_license": "CC0-1.0",
                "database": "cc0pedia"
              },
              "price_usdc": "0.01",
              "query": "sartoshi",
              "related_works": [
                {
                  "slug": "mfers",
                  "title": "mfers",
                  "url": "https://cc0.company/cc0pedia/mfers"
                }
              ],
              "service": "cc0pedia",
              "success": true
            },
            "type": "json"
          }
        },
        "schema": {
          "$schema": "https://json-schema.org/draft/2020-12/schema",
          "properties": {
            "input": {
              "additionalProperties": false,
              "properties": {
                "body": {
                  "properties": {
                    "query": {
                      "description": "Name or slug of the CC0 creator, collection, or work to look up (e.g. 'sartoshi', 'mfers', 'xcopy'). Resolved by exact slug → id → fuzzy title. Browse the catalog at https://cc0.company/cc0pedia.",
                      "type": "string"
                    }
                  },
                  "required": [
                    "query"
                  ]
                },
                "bodyType": {
                  "enum": [
                    "json",
                    "form-data",
                    "text"
                  ],
                  "type": "string"
                },
                "method": {
                  "enum": [
                    "POST"
                  ],
                  "type": "string"
                },
                "type": {
                  "const": "http",
                  "type": "string"
                }
              },
              "required": [
                "type",
                "method",
                "bodyType",
                "body"
              ],
              "type": "object"
            },
            "output": {
              "properties": {
                "example": {
                  "type": "object"
                },
                "type": {
                  "type": "string"
                }
              },
              "required": [
                "type"
              ],
              "type": "object"
            }
          },
          "required": [
            "input"
          ],
          "type": "object"
        }
      }
    },
    "lastUpdated": "2026-10-27T09:44:57.94Z",
    "quality": {
      "l30DaysTotalCalls": 5,
      "l30DaysUniquePayers": 5,
      "lastCalledAt": "2026-10-23T22:38:07.409Z"
    },
    "resource": "https://cc0.company/api/store/agent-services/cc0pedia/invoke",
    "type": "http",
    "x402Version": 2
  },
  "source": "x402_bazaar",
  "summary": "cc0.company — x402 agent-services marketplace on Base (USDC): CC0 image generation, market-data digests, and third-party agent tools. This endpoint: cc0pedia — look up any CC0 creator, collection, or work by name/slug and get provenance, creator, license, on-chain pointers + full CC0 body. Synchronous JSON, $0.01/lookup."
}

What the leaf hashes

{"body":"004e819e371dc03186adc2cea8d489afecec6df3b775143a01ea40b76d1825eb","id":451613,"kind":"listing","method":"sync.x402_bazaar/1","observed_us":1793100508767716,"prev":72136,"subject":"x402_bazaar:https://cc0.company/api/store/agent-services/cc0pedia/invoke","subject_kind":"source_record"}

Proof

Fold these into the leaf in order, hashing each sorted pair with keccak256, to reach the root of 2026-10-27 (273461 rows).

1. 0x3a586ce8e865ec8b823e708621d1256f179fe68ef34a09a9dcfd1c84572f29f9
2. 0x662ea1aace0ed7ee4d1b2da84444a98dd78b7b9551d6a48805438adb53dd8d9f
3. 0x9e7536093cbbea880fb00fe260f3cd05dbf888fe00a6f5b0bd050d3fc0089b5b
4. 0xe3cab0579909220deae14911331be2eea8f5241adb22739d6f90b05d79ccdf7e
5. 0xb1ee75f1c79970007c06fef485a69a5e67bc3b6ae78125c048eb7b692a0b3754
6. 0x2e683f405f7e0424801737b4bcdc4fc28ddd80035d611251046c31531cdf8e10
7. 0xf16b38d24f03d2a220a12374234be82e30830564a6bfab1a9123ddc0b4ea9f39
8. 0x6e91bb2ae4dec59c12d6e01f3af5c61dbed409cd87aeddd962792d1745d91a2d
9. 0x5f2b9d82e19274ac6fdd903b9126bd233e7b3fc41481133f02e02b2523c20096
10. 0xe564ba092458babe990f80a6c1de2837c241db159aa0feca1d56b6206fbe4205
11. 0x3689959f22248b99aac42058fcdd09cd65a6236ef340ba1b624c29d4313a37d4
12. 0x4add9ebe2bbf86a7a32e3cec38874af82baf38b21fde64a6952bf3d4124e2c7f
13. 0x9e70d944564843a0f0d88b623d628ff2e2ac17c172d4ebe0ed141fe8b9f9dae4
14. 0x42784d9809d120654630ee1b254a1dd90a2bbd3024aa180f1a59bbf53e9316e4
15. 0x8360ee1105e4d9f9312067cbbfd47c69c5948665ae582b9684a580c8f4e199e1
16. 0x52efa60e0c3d8525486d2310eb3b6b566c9677c64fd1f819edb072cf101bcbdb
17. 0x22c1fb9487ee0b9732fa017a0cc321eb27a60c08450d112f755089796e12cb1c
18. 0xa20d48798a34aba12eb9c7297722982d910f06c148f5e27ac59307422964a585
19. 0x9fc354c0ea3efc3f1b6548bb77ea902a50f2c9647647ea61592efce2bd795699

Day root

0xdd77e5e99da32c3f154180d63e3c3e6fe11e896a2c6896412ef6b5c4bcf7e795

Chained

0x23bb4dfd09f55c15ac3962f53578e02c6114d5bfd9bb451cf8794fb6e2817ef4

Published

On Arc Testnet, block 69414147: 0xb2ebd83aafeb765a0ce66e76aefb133ed06606c98038fd56191e2bcd1dcb77b4