← The evidence ledger
Evidence row 45765
Observed , by baseline/1.
- Kind
- listing
- About
- source_record mcp_registry:io.github.physics-star-cat/databutler-uk-exams
- Recorded
- Previous row
- None: the first of its kind about this subject
- Body SHA-256
- e79f245c656bde0871f50a5e9ee5fdf7187ca1338caeaf02f88aad459a9f0d72
- Leaf
- 0xcc75b7009e9ceb5614351f0376b296b7c296589839968ad6e11d9808f686972f
What was observed
{
"endpoints": [
[
"mcp",
"https://databutler.dev/api/mcp/uk-exams"
],
[
"web",
"https://databutler.dev/api"
]
],
"name": "io.github.physics-star-cat/databutler-uk-exams",
"owner_address": null,
"raw": {
"_meta": {
"io.modelcontextprotocol.registry/official": {
"isLatest": true,
"publishedAt": "2026-08-31T12:37:03.288288Z",
"status": "active",
"statusChangedAt": "2026-08-31T12:37:03.288288Z",
"updatedAt": "2026-08-31T12:37:03.288288Z"
}
},
"server": {
"$schema": "https://static.modelcontextprotocol.io/schemas/2025-12-11/server.schema.json",
"description": "UK exam-board spec data: which paper is a topic on, spec structures, past-paper links. Verified.",
"name": "io.github.physics-star-cat/databutler-uk-exams",
"remotes": [
{
"type": "streamable-http",
"url": "https://databutler.dev/api/mcp/uk-exams"
}
],
"repository": {
"source": "github",
"url": "https://github.com/physics-star-cat/databutler"
},
"version": "1.0.0",
"websiteUrl": "https://databutler.dev/api"
}
},
"source": "mcp_registry",
"summary": "UK exam-board spec data: which paper is a topic on, spec structures, past-paper links. Verified."
}What the leaf hashes
{"body":"e79f245c656bde0871f50a5e9ee5fdf7187ca1338caeaf02f88aad459a9f0d72","id":45765,"kind":"listing","method":"baseline/1","observed_us":1793025406976556,"prev":null,"subject":"mcp_registry:io.github.physics-star-cat/databutler-uk-exams","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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- Day root
- 0xf43e8dcc3d451a4788b26be904c55e8c4c0fa75c9666796c51db38d37e2c0df8
- Chained
- 0x702d5ac508f08b0d1accf36af25822d8e5660367494edd17a642fb61e158a57a
- Published
- On Arc Testnet, block 69251483: 0x495162f8936e19f0039918feebe6c307f327cd6bf8c37219620b1970041fa9ae