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Evidence row 64634

Observed , by baseline/1.

Kind
listing
About
source_record x402_bazaar:https://api.agentstools.dev/crypto/news
Recorded
Previous row
None: the first of its kind about this subject
Body SHA-256
2a16056257e1ef48398f3acc77733451c0d077165dd59c8d033e1d65f1df3f23
Leaf
0xa8eec40490ea370a14ce8f2dbc6c3359a4e6c1ff1027e3748c3349124844ae0c

What was observed

{
  "endpoints": [
    [
      "x402",
      "https://api.agentstools.dev/crypto/news"
    ]
  ],
  "name": "crypto-news",
  "owner_address": "0xf22e558a00d91ee12a1f50c52186fecb8ddff493",
  "raw": {
    "accepts": [
      {
        "amount": "5000",
        "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
        "extra": {
          "name": "USD Coin",
          "version": "2"
        },
        "maxTimeoutSeconds": 300,
        "network": "eip155:8453",
        "payTo": "0xF22e558a00D91Ee12A1F50C52186FecB8dDFf493",
        "scheme": "exact"
      }
    ],
    "description": "Aggregated crypto news with sentiment: deduplicated headlines from many major crypto outlets (CoinDesk, Cointelegraph, Decrypt, Bitcoin Magazine, The Block, CryptoSlate), each scored bullish/bearish/neutral by a crypto-tuned lexicon, optionally filtered by coin or query. One call instead of polling a dozen feeds and running your own NLP.",
    "extensions": {
      "bazaar": {
        "info": {
          "input": {
            "method": "GET",
            "queryParams": {
              "coin": "BTC",
              "limit": 15
            },
            "type": "http"
          },
          "output": {
            "example": {
              "attribution": "Headlines syndicated from their publishers ...",
              "coin": "BTC",
              "count": 2,
              "items": [
                {
                  "link": "https://www.coindesk.com/...",
                  "published": "Tue, 30 Jun 2026 14:32:33 +0000",
                  "sentiment": {
                    "label": "bullish",
                    "score": 0.66
                  },
                  "source": "CoinDesk",
                  "summary": "BTC climbed as inflows...",
                  "title": "Bitcoin rallies past resistance"
                }
              ],
              "query": null,
              "summary": {
                "after_dedup": 98,
                "errors": [],
                "sentiment": {
                  "breakdown": {
                    "bearish": 0,
                    "bullish": 1,
                    "neutral": 1
                  },
                  "items_scored": 2,
                  "label": "bullish",
                  "score": 0.31
                },
                "sources_failed": 0,
                "sources_ok": 6,
                "total_fetched": 120
              }
            },
            "type": "json"
          }
        },
        "schema": {
          "$schema": "https://json-schema.org/draft/2020-12/schema",
          "properties": {
            "input": {
              "additionalProperties": false,
              "properties": {
                "method": {
                  "enum": [
                    "GET",
                    "HEAD",
                    "DELETE"
                  ],
                  "type": "string"
                },
                "queryParams": {
                  "properties": {
                    "coin": {
                      "description": "Filter to a coin by ticker or name (BTC, ETH, SOL, bitcoin, ethereum, ...)",
                      "type": "string"
                    },
                    "limit": {
                      "description": "Max items to return (default 20, cap 30)",
                      "maximum": 30,
                      "minimum": 1,
                      "type": "integer"
                    },
                    "query": {
                      "description": "Free-text filter on headline + summary (e.g. ETF, staking)",
                      "type": "string"
                    }
                  },
                  "required": [],
                  "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": "2026-10-08T06:07:50.342Z",
    "quality": {
      "l30DaysTotalCalls": 4,
      "l30DaysUniquePayers": 3,
      "lastCalledAt": "2026-10-08T06:07:50.105Z"
    },
    "resource": "https://api.agentstools.dev/crypto/news",
    "serviceName": "crypto-news",
    "tags": [
      "crypto",
      "news",
      "sentiment",
      "bitcoin",
      "ethereum"
    ],
    "type": "http",
    "x402Version": 2
  },
  "source": "x402_bazaar",
  "summary": "Aggregated crypto news with sentiment: deduplicated headlines from many major crypto outlets (CoinDesk, Cointelegraph, Decrypt, Bitcoin Magazine, The Block, CryptoSlate), each scored bullish/bearish/neutral by a crypto-tuned lexicon, optionally filtered by coin or query. One call instead of polling a dozen feeds and running your own NLP."
}

What the leaf hashes

{"body":"2a16056257e1ef48398f3acc77733451c0d077165dd59c8d033e1d65f1df3f23","id":64634,"kind":"listing","method":"baseline/1","observed_us":1793025456880940,"prev":null,"subject":"x402_bazaar:https://api.agentstools.dev/crypto/news","subject_kind":"source_record"}

Proof

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

  1. 0xa8ee887b1874a02562355e5f8e30bfaa0863de3d9588134cb5e536c5800b238a
  2. 0xa29307686efb9494be12f3b1cadb07ce3d2e5d589e6d15b81e6e2b547a892e77
  3. 0x4feb69681e73857e85184dfdd0dfa28ca5333ab38bf06f83a2a16ffc4e032998
  4. 0xf17dd11becb7a38c2e8c559351cf2c319236be080fb457212bd6e9afd18040da
  5. 0xfbebab9fadb99f8b2fbaf8c35a056b71ab389d5d31e455c7ce392b86e82c997d
  6. 0xb84727603e53e5ec2b51cc6adfca62c1537c3935f15a65e2318ec998f4d047f1
  7. 0x931a66a681f29b9837430d65e5e490c2c2d872a5bef0a0c318629e320d42ead4
  8. 0xa4083cc7830fc1b50fad14fe08e218eecae480b0f693f8415c14ad90d1f2fcb1
  9. 0xf03b5580b4cf240f57781e01d5a8c5662eb3f5d9781d4b04b50611882de9ffd1
  10. 0x59283b4f1957eed1ca397cea7a54cad8fd28e2488fdbd3f14185468ebe1209e1
  11. 0xcc46e37d035d0d90e3d86104e55f155ffacd1530f11ceef85fa02db50beb78a5
  12. 0xb31654882cc5704ae07fa6a4ad12ef5516ea95a5ec8b5affdbdbec199402e29a
  13. 0x292ebdce6b8d3d7ef08ad646a0fd97dee9313ab55c1a350807d9f3013794c37a
  14. 0x428106f4ae4ec142f17aebf6fa50935242f8d3f1c211cf95d6351d03d11da2b7
  15. 0x62a900133713919f4eed33d8336876b7a6d538233b8a4f3ed03b29aa44f5bad0
  16. 0x1ac20d30773e1f4f2f811540e9a99b5cca9177c9e2e029acc0d80cf3f1d11f0f
  17. 0xd21942ae3214eff88e08ab04884fd4b11958b51af9a0741b7668e2d07a2c56c9
  18. 0x9a9024edb5069d88a324facb310a5ce8e495214bbaa968f077bede437390194f
  19. 0x9b9ce5b74b9bab5121612ef6b64920a8d453cbf311096a423eef9702747e868a
Day root
0xf43e8dcc3d451a4788b26be904c55e8c4c0fa75c9666796c51db38d37e2c0df8
Chained
0x702d5ac508f08b0d1accf36af25822d8e5660367494edd17a642fb61e158a57a
Published
On Arc Testnet, block 69251483: 0x495162f8936e19f0039918feebe6c307f327cd6bf8c37219620b1970041fa9ae

How to check it · This row as JSON