← The evidence ledger
Evidence row 38311
Observed , by baseline/1.
- Kind
- listing
- About
- source_record mcp_registry:io.github.herve-coulon/tax-retirement
- Recorded
- Previous row
- None: the first of its kind about this subject
- Body SHA-256
- 7eaa66480d5992435287deb98d5074ece1cb53bb6e92b8cfdbfc26f6fb477e6f
- Leaf
- 0x864fb9ff590e150fb056412b9ac9159d040aa3425ae50fd388cf712eccecce7d
What was observed
{
"endpoints": [
[
"mcp",
"https://app.qotien.fr/api/fiscal/v1/mcp"
],
[
"web",
"https://qotien.fr/"
]
],
"name": "io.github.herve-coulon/tax-retirement",
"owner_address": null,
"raw": {
"_meta": {
"io.modelcontextprotocol.registry/official": {
"isLatest": true,
"publishedAt": "2026-09-17T13:14:10.181345Z",
"status": "active",
"statusChangedAt": "2026-09-17T13:14:10.181345Z",
"updatedAt": "2026-09-17T13:14:10.181345Z"
}
},
"server": {
"$schema": "https://static.modelcontextprotocol.io/schemas/2025-07-09/server.schema.json",
"_meta": {
"io.modelcontextprotocol.registry/publisher-provided": {
"capabilities": [
"impôt sur le revenu",
"TMI",
"IFI",
"PER (plafond & gain)",
"CEHR / CDHR",
"plus-value immobilière",
"retraite (32 régimes)"
],
"confidence_model": "fiable | estimé | partiel | non calculable (par réponse)",
"contact": "contact@qotien.fr",
"coverage": "France — millésime fiscal 2026",
"links": {
"developers": "https://qotien.fr/developpeurs",
"manifest": "https://app.qotien.fr/api/fiscal/v1/manifest",
"openapi": "https://app.qotien.fr/openapi.json",
"sources": "https://qotien.fr/sources"
},
"payment": "API payante x402 v2 (USDC sur Base) ; évaluation via clé d'essai nominative",
"pricing": {
"bareme": "0,05 USD",
"etude": "0,25 USD",
"optimiseur": "1,00 USD",
"protocole": "0"
},
"summary": "API de calcul fiscal et retraite français, millésime 2026, sourcée (CGI/BOFiP) et datée. Chaque réponse porte son niveau de confiance : fiable / estimé / partiel / non calculable.",
"title": "Qotien — Fiscal & Retraite FR"
}
},
"description": "Calcul fiscal (IR, IFI, PER, plus-value) et retraite français — 32 régimes, sourcé et daté.",
"name": "io.github.herve-coulon/tax-retirement",
"remotes": [
{
"type": "streamable-http",
"url": "https://app.qotien.fr/api/fiscal/v1/mcp"
}
],
"repository": {
"source": "github",
"url": "https://github.com/herve-coulon/qotien-mcp"
},
"version": "0.1.2",
"websiteUrl": "https://qotien.fr"
}
},
"source": "mcp_registry",
"summary": "Calcul fiscal (IR, IFI, PER, plus-value) et retraite français — 32 régimes, sourcé et daté."
}What the leaf hashes
{"body":"7eaa66480d5992435287deb98d5074ece1cb53bb6e92b8cfdbfc26f6fb477e6f","id":38311,"kind":"listing","method":"baseline/1","observed_us":1793025391691373,"prev":null,"subject":"mcp_registry:io.github.herve-coulon/tax-retirement","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