Evidence row 72134

What was observed

{
  "endpoints": [
    [
      "x402",
      "https://cc0.company/api/store/agent-services/cc0-daily-brief/invoke"
    ]
  ],
  "name": "cc0.company/api/store/agent-services/cc0-daily-brief/invoke",
  "owner_address": "0xba816f0708a91a2cde866f70e931d93e83dd6ef5",
  "raw": {
    "accepts": [
      {
        "amount": "50000",
        "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
        "extra": {
          "name": "USD Coin",
          "version": "2"
        },
        "maxTimeoutSeconds": 60,
        "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: CC0 Daily Brief — hourly top-5 CC0 NFT collections by 24h volume + cc0pedia context + LLM narrative. Synchronous JSON.",
    "extensions": {
      "bazaar": {
        "info": {
          "input": {
            "body": {
              "format": "json"
            },
            "bodyType": "json",
            "method": "POST",
            "type": "http"
          },
          "output": {
            "example": {
              "cache_age_seconds": 432,
              "cache_freshness_hint": "fresh",
              "collections": [
                {
                  "cc0pedia": {
                    "creator": "sartoshi",
                    "lore_url": "https://cc0.company/cc0pedia/mfers",
                    "summary": "Hand-drawn stick figures on Ethereum, anchor of mfer culture."
                  },
                  "chain": "ethereum",
                  "contract_address": "0x79fcdef22feed20eddacbb2587640e45491b757f",
                  "image_url": "https://i.seadn.io/...",
                  "metrics": {
                    "floor_price_eth": 0.6,
                    "floor_price_symbol": "ETH",
                    "holders_count": 6234,
                    "sales_24h": 12,
                    "total_supply": 10021,
                    "volume_24h_eth": 4.2,
                    "volume_24h_usd": 14250,
                    "volume_change_24h_pct": 18.4
                  },
                  "name": "mfers",
                  "narrative": "mfers up 18% on quiet accumulation by smaller wallets; floor steady at 0.6 ETH.",
                  "opensea_slug": "mfers",
                  "opensea_url": "https://opensea.io/collection/mfers",
                  "rank": 1
                }
              ],
              "generated_at": "2026-06-08T08:00:00.000Z",
              "meta": {
                "builder_version": 1,
                "license": "CC0",
                "refresh_cadence": "hourly"
              },
              "networks": [
                "ethereum",
                "base"
              ],
              "price_usdc": "0.05",
              "service": "cc0-daily-brief",
              "success": true,
              "synthesis": {
                "headline": "CC0 sector volume up 24% as mfers and cryptoadz lead the day.",
                "macro": {
                  "eth_price_usd": 3392.5,
                  "total_collections_evaluated": 47,
                  "total_volume_24h_eth": 11.32,
                  "total_volume_24h_usd": 38420
                },
                "top_story_collection": "mfers",
                "top_story_summary": "mfers saw quiet accumulation by smaller wallets while a single whale exited 4.2 ETH worth. Sartoshi-era collectibles outperforming AI-era drops today."
              }
            },
            "type": "json"
          }
        },
        "schema": {
          "$schema": "https://json-schema.org/draft/2020-12/schema",
          "properties": {
            "input": {
              "additionalProperties": false,
              "properties": {
                "body": {
                  "properties": {
                    "format": {
                      "default": "json",
                      "description": "Output format. Only 'json' is supported today; 'markdown' is planned for v2 to power newsletter pipelines without an extra LLM call.",
                      "enum": [
                        "json"
                      ],
                      "type": "string"
                    }
                  },
                  "required": []
                },
                "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": "2026-10-22T17:21:37.803Z",
    "quality": {
      "l30DaysTotalCalls": 3,
      "l30DaysUniquePayers": 3,
      "lastCalledAt": "2026-10-22T17:21:37.302Z"
    },
    "resource": "https://cc0.company/api/store/agent-services/cc0-daily-brief/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: CC0 Daily Brief — hourly top-5 CC0 NFT collections by 24h volume + cc0pedia context + LLM narrative. Synchronous JSON."
}

What the leaf hashes

{"body":"33ea2229272d86008b7d7361fcfe8d88caefd11e4cf2c7821f6e8a5179d7e3de","id":72134,"kind":"listing","method":"baseline/1","observed_us":1793025485423989,"prev":null,"subject":"x402_bazaar:https://cc0.company/api/store/agent-services/cc0-daily-brief/invoke","subject_kind":"source_record"}

Proof

Fold these into the leaf in order, hashing each sorted pair with keccak256, to reach the root of 2026-10-26 (296695 rows).

1. 0x895f0f1800d843c011b0ab5cff79e56af14fe035e329b86add29d20b32ce2660
2. 0xb059f2c72a03a596f5c0d0a4cbe754532948aab83cd710f7fff47238fc290dd4
3. 0x06450e39c8b225c132a9275de903f4e4bc8e33bd6a1f3c5a8e91a2242291d726
4. 0x2389ceb52e691089d690247c11c75e20c75499b339d95f8d20cc33bab8222e54
5. 0xe5cdadc31e4e4615ef1f5400651130d4b00bbf34bcaaa82ff6415fc23322ab25
6. 0x5b410593a9610920d1d1c0a651bbd766bcd183dc08d1a4b9c2784ddb58492a6b
7. 0xcb5b9f859e76851bdc6209e8d4d6d31e0ce6157f0d249226fbe245436b63324d
8. 0x94c692ce30dc5338658949ab3ac796ccc07d70c753c91c69e7cb7472a1c56877
9. 0x1632027a994340cc08cec74b54ec6a4a0c47771bb3cd250c119ce3549d8c9b26
10. 0xed8c683cc2523b6faaf9567b2bca065f0b0b5a96cb16dc02a32ff230916396f8
11. 0xfb2bf7248df06c668bce5c2fce26586eb8982728138c40f164c1666cb3e32d7b
12. 0x7bf2d426bb827b94d7608055662cf2e3f09791e1a4c2c6bd606c0a9e89b18e59
13. 0x49d11be052a4c069b10250aaba214f566b3f2e5aaa7a98e82ccc6a71c0e801a0
14. 0x78ac2b34737774659a6a411f4d10b8ba570d40699d9f277321c3a32ff03d1dc9
15. 0x7eb603d37f0f22dae1ea013e391889906ffc0139ff26e25b044bee38eec8f9b2
16. 0x2b6e23e3624a1b66e1d2298cfbce99a93ce6b13d24a58112a71802d79c5f7a76
17. 0xd21942ae3214eff88e08ab04884fd4b11958b51af9a0741b7668e2d07a2c56c9
18. 0x9a9024edb5069d88a324facb310a5ce8e495214bbaa968f077bede437390194f
19. 0x9b9ce5b74b9bab5121612ef6b64920a8d453cbf311096a423eef9702747e868a

Day root

0xf43e8dcc3d451a4788b26be904c55e8c4c0fa75c9666796c51db38d37e2c0df8

Chained

0x702d5ac508f08b0d1accf36af25822d8e5660367494edd17a642fb61e158a57a

Published

On Arc Testnet, block 69251483: 0x495162f8936e19f0039918feebe6c307f327cd6bf8c37219620b1970041fa9ae