Evidence row 12359

What was observed

{
  "endpoints": [
    [
      "mcp",
      "https://a2awire.com/mcp/data/medicalxpresswatch-medical-health-news-breakthroughs-1ce384/http"
    ],
    [
      "web",
      "https://a2awire.com/data/medicalxpresswatch-medical-health-news-breakthroughs-1ce384"
    ]
  ],
  "name": "Medical & Health News Breakthroughs — buy per-query in-session (medicalxpresswatch)",
  "owner_address": null,
  "raw": {
    "_meta": {
      "io.modelcontextprotocol.registry/official": {
        "isLatest": true,
        "publishedAt": "2026-09-14T12:07:14.96803Z",
        "status": "active",
        "statusChangedAt": "2026-09-14T12:07:14.96803Z",
        "updatedAt": "2026-09-14T12:07:14.96803Z"
      }
    },
    "server": {
      "$schema": "https://static.modelcontextprotocol.io/schemas/2025-12-11/server.schema.json",
      "_meta": {
        "io.modelcontextprotocol.registry/publisher-provided": {
          "cadence": "Hourly refresh; ~20 new medical/health news items per day from Medical Xpress (event-driven, continuous churn)",
          "getting_started": [
            "connect (no key needed) — initialize returns buyer-first instructions",
            "register — mints your agent identity + wallet in this session, no signup",
            "request_testnet_usdc — faucet drips free funds to your wallet",
            "data_session_open — open a prepaid $0.01/query session",
            "data_session_query — ask; attested hits returned"
          ],
          "how_to_buy": "register -> request_testnet_usdc -> data_session_open -> data_session_funding_package -> broadcast -> data_session_attach_escrow -> data_session_query",
          "listing_page": "https://a2awire.com/data/medicalxpresswatch-medical-health-news-breakthroughs-1ce384",
          "mcp_remote": "https://a2awire.com/mcp/data/medicalxpresswatch-medical-health-news-breakthroughs-1ce384/http",
          "price": "$0.01/query. Free testnet USDC via in-session faucet.",
          "product": "Current-awareness feed of medical and health news from Medical Xpress's official RSS: new clinical findings, epidemiology, neuroscience, cancer research, public-health guidance and medical-breakthrough coverage. Complements peer-reviewed feeds (PubMed papers, bioRxiv/medRxiv prep",
          "sample_queries": [
            "What are the newest medical and health news stories?",
            "Any medical breakthroughs or clinical findings published in the last 24 hours?",
            "How many health-news items has this feed archived so far?"
          ],
          "search_keywords": [
            "medical-news",
            "health-news",
            "medical-breakthrough",
            "medical-xpress",
            "health-research",
            "medicine"
          ],
          "settlement": "escrow-backed on Base L2; funds never custodied by the platform",
          "verification": "on-chain corpus-root anchor evidence via /api/v1/anchors/{tx_hash}"
        }
      },
      "description": "Medical & health news feed, ~20 items/day. $0.01/query. Register in-session — free testnet funds.",
      "name": "com.a2awire/data-medical-news-health-news-breakthrough",
      "remotes": [
        {
          "type": "streamable-http",
          "url": "https://a2awire.com/mcp/data/medicalxpresswatch-medical-health-news-breakthroughs-1ce384/http"
        }
      ],
      "repository": {
        "source": "github",
        "url": "https://github.com/ee324/a2awire"
      },
      "title": "Medical & Health News Breakthroughs — buy per-query in-session (medicalxpresswatch)",
      "version": "0.1.0",
      "websiteUrl": "https://a2awire.com/data/medicalxpresswatch-medical-health-news-breakthroughs-1ce384"
    }
  },
  "source": "mcp_registry",
  "summary": "Medical & health news feed, ~20 items/day. $0.01/query. Register in-session — free testnet funds."
}

What the leaf hashes

{"body":"31a71349b892b958d150a970ceda85d505389fbb523998bf4c236615cfbf554e","id":12359,"kind":"listing","method":"baseline/1","observed_us":1793025305229333,"prev":null,"subject":"mcp_registry:com.a2awire/data-medical-news-health-news-breakthrough","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. 0x91d8160893b10c4b3798198e24e512ea02d2a1fa4197f4fcb94fa157e5fc76c9
2. 0x7db965e8b2b38e1b64de84d67e0740cfed3a7d4682377af775504c2e89dc6e82
3. 0x4e0c7d33014a8091eb1db1d403925628e6aa0a588d3c0cb408645765ff755d73
4. 0x19294f9224e641d42d7b35b4575add68c186845557c4f226fb776190159b062c
5. 0xbeeb93555ff0a7aa7bd1ec0304ba118e48349b6e0625d0eceabff0dc54baf3f9
6. 0x4c1562a49f9200c2f1bc3615edb82237c2edda49645877261d0826ababa9b634
7. 0xfbcedd22997e00cd414c12ba5500374e709beb5bfff94ef0fb9d11f950a5bdfa
8. 0x944d7be9f4e9af748e1eff655fc38b340df940464276c00053bd2f6a821ead36
9. 0x5410fead19c2a3bcc8f28608fd9fca026fb27a547465281a2d82863cf0bd4f32
10. 0x0d8c9849ad61f3608ed33ea96162e91265f1a635a7e3d125b440758921da7146
11. 0x316efc275d57dcc035269c8eb6bada510779068882f33960d16f7f84af2b4432
12. 0xe131b224ee3c295dfa790b458d9daa11e2a32e6131c280c6be7d92190c756a88
13. 0x45c1d3062bbe98a6b1540c7e2ccf6516eedd6ef07fdfeb1ba77ee6272970447c
14. 0xf0edabbb9ba0d643e5505d19d07637eb6f6aed0a1c7356af43ae7d84ae9ef0c5
15. 0xf0bd63870f0bb378fa300bd33563050dcb7b3e02b44eb3ee550c1c534ec4b246
16. 0x1ac20d30773e1f4f2f811540e9a99b5cca9177c9e2e029acc0d80cf3f1d11f0f
17. 0xd21942ae3214eff88e08ab04884fd4b11958b51af9a0741b7668e2d07a2c56c9
18. 0x9a9024edb5069d88a324facb310a5ce8e495214bbaa968f077bede437390194f
19. 0x9b9ce5b74b9bab5121612ef6b64920a8d453cbf311096a423eef9702747e868a

Day root

0xf43e8dcc3d451a4788b26be904c55e8c4c0fa75c9666796c51db38d37e2c0df8

Chained

0x702d5ac508f08b0d1accf36af25822d8e5660367494edd17a642fb61e158a57a

Published

On Arc Testnet, block 69251483: 0x495162f8936e19f0039918feebe6c307f327cd6bf8c37219620b1970041fa9ae