← The evidence ledger
Evidence row 58957
Observed , by baseline/1.
- Kind
- listing
- About
- source_record mcp_registry:si.fourzerotwo/health
- Recorded
- Previous row
- None: the first of its kind about this subject
- Body SHA-256
- a95bc95510c0828e7e87077619cd37190195d7d7b22d5e8389166ff582c58a4d
- Leaf
- 0x421ce518d9109c3676ce9aaddcc35f3a18d2867b951db114a35ba86415931b9e
What was observed
{
"endpoints": [
[
"mcp",
"https://fourzerotwo.si/mcp/v/health"
],
[
"web",
"https://fourzerotwo.si/"
]
],
"name": "Health & medicines",
"owner_address": null,
"raw": {
"_meta": {
"io.modelcontextprotocol.registry/official": {
"isLatest": true,
"publishedAt": "2026-10-11T19:01:21.957715Z",
"status": "active",
"statusChangedAt": "2026-10-11T19:01:21.957715Z",
"updatedAt": "2026-10-11T19:01:21.957715Z"
}
},
"server": {
"$schema": "https://static.modelcontextprotocol.io/schemas/2025-12-11/server.schema.json",
"description": "Clinical trials, RxNorm drug lookups, FDA drug and device data, PubMed and NHS organisations.",
"name": "si.fourzerotwo/health",
"remotes": [
{
"headers": [
{
"description": "Optional free key from https://fourzerotwo.si/free (raises the free allowance from 100 to 500 calls/day)",
"isSecret": true,
"name": "X-API-Key"
}
],
"type": "streamable-http",
"url": "https://fourzerotwo.si/mcp/v/health"
}
],
"title": "Health & medicines",
"version": "1.0.0",
"websiteUrl": "https://fourzerotwo.si"
}
},
"source": "mcp_registry",
"summary": "Clinical trials, RxNorm drug lookups, FDA drug and device data, PubMed and NHS organisations."
}What the leaf hashes
{"body":"a95bc95510c0828e7e87077619cd37190195d7d7b22d5e8389166ff582c58a4d","id":58957,"kind":"listing","method":"baseline/1","observed_us":1793025445590739,"prev":null,"subject":"mcp_registry:si.fourzerotwo/health","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).
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- 0x78d99099c37926443d7973cd4daabed69d7bcd850732aef0d2c07b767eb85913
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- 0xa4b9189598d706ecdab488c3e933c607e6817a22e0a6e51b979b85fc27ac6e6a
- 0xf9bb094e1acd7be4b4beb98112ab316bce1058e39d4851158c67ed3964395eb3
- 0xc3b00ef80ec0488533fb3558d456a54d3acd8eef3dda389d15349b73091f14ba
- 0xfaa340d4e4e92a29dd7b44c7a2a73e88b9560db124af82b55eaf45862431cc7d
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- 0x1260fd52e56d736b42c74dfff845b63de8feedbacd9ad7a312040b8a7a1859cf
- 0x40430b285418db6d3a5a2c626d90ef47fc069d45eb9e4fbee49da2a4e637758f
- 0x58f4330f9ac32da273a2a76d85bc0768d037638cddbd3d1f09d9b64094bfd942
- 0xd406739acce2ba016f8d49081b15f266a4ea4a0b0fc5ef171c89c8fd2dda4d80
- 0x8b27a4c21bf4ba962fd008c8f4300bc6953764a5032b9ab0cfe696b318c45326
- 0x4b52a97f7a80ff7778a702b85267b8d2e5c93ce160942656435c29ae7be68bf4
- 0x2e6a32eb32761c210560e852405e2f865f958ddbe01027894f8b9c1b3433b9f0
- 0x9a83be955a206deb65b995adfd92c58fa31c95fbbf926bd199d300e70b08b26d
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- 0x9b9ce5b74b9bab5121612ef6b64920a8d453cbf311096a423eef9702747e868a
- Day root
- 0xf43e8dcc3d451a4788b26be904c55e8c4c0fa75c9666796c51db38d37e2c0df8
- Chained
- 0x702d5ac508f08b0d1accf36af25822d8e5660367494edd17a642fb61e158a57a
- Published
- On Arc Testnet, block 69251483: 0x495162f8936e19f0039918feebe6c307f327cd6bf8c37219620b1970041fa9ae