Evidence row 121365

What was observed

{
  "endpoints": [
    [
      "x402",
      "https://signalsfeed.com/api/v1/feed"
    ]
  ],
  "name": "signalsfeed.com/api/v1/feed",
  "owner_address": "0xcde02cb53da623d929fef26d56c1cd9ddc9ca880",
  "raw": {
    "accepts": [
      {
        "amount": "10000",
        "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
        "description": "Real-time signals feed for AI agents. Covers economic indicators, central bank policy, commodities, equities, AI, semiconductors, and geopolitical risk. Structured signals with credibility scoring. Pay-per-request via x402; free discovery available.",
        "extra": {
          "name": "USD Coin",
          "version": "2"
        },
        "freeAlternative": {
          "description": "Discover premium-ready signal IDs before paying.",
          "method": "GET",
          "url": "https://signalsfeed.com/api/v1/feed?since=2026-05-10T00:00:00Z&quality_status=premium&limit=20"
        },
        "maxAmountRequired": "10000",
        "maxTimeoutSeconds": 300,
        "mimeType": "application/json",
        "network": "eip155:8453",
        "payTo": "0xcde02cB53DA623D929FEf26d56C1cD9Ddc9ca880",
        "pricing": {
          "amountUsd": 0.01,
          "currency": "USDC",
          "description": "$0.01 per paid request, returns up to 20 full signals.",
          "unit": "request"
        },
        "resource": "https://signalsfeed.com/api/v1/feed",
        "scheme": "exact"
      }
    ],
    "description": "Real-time signals feed for AI agents. Covers economic indicators, central bank policy, commodities, equities, AI, semiconductors, and geopolitical risk. Structured signals with credibility scoring. Pay-per-request via x402; free discovery available.",
    "extensions": {
      "bazaar": {
        "category": "finance",
        "description": "Cross-domain signal aggregation and real-time news for AI agents. Source-backed macro, AI, semiconductor, policy, commodities, trading, sentiment, and prediction signals. Free discovery returns premium-ready IDs; one x402 payment on Base Mainnet unlocks full signal evidence.",
        "discoverable": true,
        "info": {
          "freeDiscovery": {
            "description": "Discover recent SignalsFeed signal IDs for free before paying for full premium signals.",
            "method": "GET",
            "path": "/api/v1/feed",
            "queryParams": {
              "domain": "macro",
              "limit": 20,
              "quality_status": "premium",
              "since": "2026-05-10T00:00:00Z"
            },
            "type": "http",
            "url": "https://signalsfeed.com/api/v1/feed?since=2026-05-10T00:00:00Z&quality_status=premium&limit=20"
          },
          "input": {
            "method": "GET",
            "queryParams": {
              "ids": "652fc5d4-07dc-4c7a-a067-04b399a994ed",
              "limit": 1
            },
            "type": "http"
          },
          "instructions": "Call the freeDiscovery URL first, then pay for GET ?ids=<uuid,uuid>. One payment returns up to 20 full premium signals.",
          "output": {
            "example": {
              "count": 0,
              "format": "full",
              "signals": []
            },
            "type": "json"
          },
          "useCases": [
            "get the latest US GDP growth estimate and revision notes",
            "look up current CPI and inflation rate trends",
            "monitor Federal Reserve interest rate decisions and Fed speaker commentary",
            "fetch oil and energy commodity supply shock signals"
          ]
        },
        "name": "SignalsFeed Unified Intelligence Feed",
        "resource": {
          "description": "Real-time signals feed for AI agents. Covers economic indicators, central bank policy, commodities, equities, AI, semiconductors, and geopolitical risk. Structured signals with credibility scoring. Pay-per-request via x402; free discovery available.",
          "mimeType": "application/json",
          "url": "https://signalsfeed.com/api/v1/feed"
        },
        "schema": {
          "properties": {
            "input": {
              "properties": {
                "body": {
                  "additionalProperties": false,
                  "properties": {},
                  "type": "object"
                },
                "queryParams": {
                  "additionalProperties": false,
                  "properties": {
                    "ids": {
                      "description": "Comma-separated article UUIDs. Max 20 per paid request.",
                      "type": "string"
                    },
                    "limit": {
                      "default": 20,
                      "maximum": 20,
                      "minimum": 1,
                      "type": "integer"
                    }
                  },
                  "required": [
                    "ids"
                  ],
                  "type": "object"
                }
              }
            },
            "output": {
              "properties": {
                "example": {
                  "count": 0,
                  "format": "full",
                  "signals": []
                }
              }
            }
          }
        },
        "tags": [
          "finance",
          "macro",
          "ai",
          "semiconductor",
          "signals",
          "x402",
          "cross-domain",
          "real-time news",
          "Base Mainnet"
        ]
      }
    },
    "lastUpdated": "2026-10-12T01:10:22.032Z",
    "quality": {
      "l30DaysTotalCalls": 10,
      "l30DaysUniquePayers": 1,
      "lastCalledAt": "2026-10-12T01:10:37.266Z"
    },
    "resource": "https://signalsfeed.com/api/v1/feed",
    "type": "http",
    "x402Version": 2
  },
  "source": "x402_bazaar",
  "summary": "Real-time signals feed for AI agents. Covers economic indicators, central bank policy, commodities, equities, AI, semiconductors, and geopolitical risk. Structured signals with credibility scoring. Pay-per-request via x402; free discovery available."
}

What the leaf hashes

{"body":"182c8d391b03ab69a7cd6cff48406b7078cf734157e686db4b99c646c32b292e","id":121365,"kind":"listing","method":"baseline/1","observed_us":1793025619808436,"prev":null,"subject":"x402_bazaar:https://signalsfeed.com/api/v1/feed","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. 0x5d517d23343b3164ad34583bfd5ab569df6f9574411beed915936a77a4577628
2. 0xabd14c850a72035e2daa47e9ac7a0b2ca935c5bc7dd49c0179bcca41bcf4e66b
3. 0xbbfcd7482ed5f34aabca31b9b14a01ea1a12520cb0cf1c386842f2b255c3e1b5
4. 0x36d33dc37de2f3049c91516a719fc4245f74f49a1fe4a9599e9a255fed5a4cb1
5. 0x160498536e68a682d4ebcf7f68489aa283f9cd6456c964ad72f4b9e83699eb66
6. 0xd9c32a42792dde98f98bc2303a5ad225d55d3482bf3a03af1affd1f0b78c4d89
7. 0x7b11b3f65361733cc0be78c74b590234e61f3bfa750a173ffe419094ca8228f3
8. 0x81454696cbda8a850702809540b97e3c3759bdee183441c3ab9de590184fd4eb
9. 0x2dbfd5cce748a6fd4938d7cb87267e05234654474e1ff65d06ee76c8629d829d
10. 0x71c75f9312be1c838a554f724b6fc57894e7c4486ab7e013b6a6a8d65cfaebea
11. 0xb91bf0ba3ebff769d1b88f93fcb076477149787a7e31c3c28ce4fe8823b7c144
12. 0x2121cc2dbcb8663af57743dc445c8a59e5bbfffe89703f0606c9843f0d35aff8
13. 0x66883b42f4167ade51c4909f050c5478524e23786fb0b5c48bd1a53580960a68
14. 0x216cebb9ae5414599109a02297c4817d7d1c6b1394afeb97efe38e32f0053974
15. 0x7726154b91b2ad65b13849ef6cb6443b1f0ff113a3089c9bd5f2bcfc16be099d
16. 0x47b89901b0f07938a6b9a66ddf35683903f79d756a7c7763665fd632758b08d0
17. 0x9a83be955a206deb65b995adfd92c58fa31c95fbbf926bd199d300e70b08b26d
18. 0x20704208aa6923d6b2450ef74ede87a6e0265d46447926038fe9506e9e154b2d
19. 0x9b9ce5b74b9bab5121612ef6b64920a8d453cbf311096a423eef9702747e868a

Day root

0xf43e8dcc3d451a4788b26be904c55e8c4c0fa75c9666796c51db38d37e2c0df8

Chained

0x702d5ac508f08b0d1accf36af25822d8e5660367494edd17a642fb61e158a57a

Published

On Arc Testnet, block 69251483: 0x495162f8936e19f0039918feebe6c307f327cd6bf8c37219620b1970041fa9ae