← The evidence ledger
Evidence row 3005988
Observed , by sync.mcp_registry/1.
- Kind
- listing
- About
- source_record mcp_registry:com.ahrefs/mcp
- Recorded
- Previous row
- None: the first of its kind about this subject
- Body SHA-256
- 8b34d36e849a504ae0c886ac19d42232d0703cc04fb68c23390f4fe3e6f44e9a
- Leaf
- 0xe1555f7afc519eef8c39007e4a24441b565ad7c3025caecac3228fb5c6e170ec
What was observed
{
"endpoints": [
[
"web",
"https://ahrefs.com/mcp"
],
[
"mcp",
"https://api.ahrefs.com/mcp/mcp"
]
],
"name": "Ahrefs",
"owner_address": null,
"raw": {
"_meta": {
"io.modelcontextprotocol.registry/official": {
"isLatest": true,
"publishedAt": "2026-11-04T11:24:31.237889Z",
"status": "active",
"statusChangedAt": "2026-11-04T11:24:31.237889Z",
"updatedAt": "2026-11-04T11:24:31.237889Z"
}
},
"server": {
"$schema": "https://static.modelcontextprotocol.io/schemas/2025-12-11/server.schema.json",
"description": "Official Ahrefs MCP server. Access SEO data, including backlinks, keywords, and competitor research.",
"name": "com.ahrefs/mcp",
"remotes": [
{
"type": "streamable-http",
"url": "https://api.ahrefs.com/mcp/mcp"
}
],
"title": "Ahrefs",
"version": "1.0.0",
"websiteUrl": "https://ahrefs.com/mcp"
}
},
"source": "mcp_registry",
"summary": "Official Ahrefs MCP server. Access SEO data, including backlinks, keywords, and competitor research."
}What the leaf hashes
{"body":"8b34d36e849a504ae0c886ac19d42232d0703cc04fb68c23390f4fe3e6f44e9a","id":3005988,"kind":"listing","method":"sync.mcp_registry/1","observed_us":1793794829706437,"prev":null,"subject":"mcp_registry:com.ahrefs/mcp","subject_kind":"source_record"}Proof
Fold these into the leaf in order, hashing each sorted pair with keccak256, to reach the root of (424109 rows).
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- Day root
- 0xd4eed8c0ea3c90ec6f262b19fcc3b849f30cb82a0f84b8b89569e48af7d0c1ee
- Chained
- 0x59305749c32724a02a23c368834d8a36ae9908da93a915e2962fffe01b4e591b
- Published
- On Arc Testnet, block 70772483: 0x813d56041c1efd407e56047129b597b154a1cb26458bb2768fd0a4630ac97345