← The evidence ledger
Evidence row 32851
Observed , by baseline/1.
- Kind
- listing
- About
- source_record mcp_registry:io.github.al157/quarterlytax-mcp
- Recorded
- Previous row
- None: the first of its kind about this subject
- Body SHA-256
- 2cfb8bcf33061d349715c5dc0207456eac511c1755e07445c0d74810d64c67e0
- Leaf
- 0x7290232751d644a6a240eca173f378fd516ea95b3fe5e61887c3198658cb3545
What was observed
{
"endpoints": [
[
"mcp",
"https://mcp.quarterlytax.al157.xyz/mcp"
],
[
"web",
"https://quarterlytax.al157.xyz/"
]
],
"name": "Quarterly Tax Calculator",
"owner_address": null,
"raw": {
"_meta": {
"io.modelcontextprotocol.registry/official": {
"isLatest": true,
"publishedAt": "2026-10-15T06:09:25.071028Z",
"status": "active",
"statusChangedAt": "2026-10-15T06:09:25.071028Z",
"updatedAt": "2026-10-15T06:09:25.071028Z"
}
},
"server": {
"$schema": "https://static.modelcontextprotocol.io/schemas/2025-12-11/server.schema.json",
"_meta": {
"io.modelcontextprotocol.registry/publisher-provided": {
"tools": [
{
"description": "Estimate annual federal + state income tax, SE tax, and the 4 per-quarter installments for a self-employed person. Input: netProfit, filingStatus, state, taxYear, optional includeQBI. Read-only.",
"name": "estimateQuarterlyTax"
},
{
"description": "Return the 4 federal quarterly estimated tax due dates for a tax year, rolled past weekends and IRS holidays. Input: taxYear. Read-only.",
"name": "getPaymentCalendar"
}
]
}
},
"description": "US federal + state quarterly estimated tax estimates, SE tax, and quarterly payment due dates.",
"name": "io.github.al157/quarterlytax-mcp",
"remotes": [
{
"type": "streamable-http",
"url": "https://mcp.quarterlytax.al157.xyz/mcp"
}
],
"repository": {
"source": "github",
"subfolder": "mcp-server",
"url": "https://github.com/al157/quarterly-tax-calc"
},
"title": "Quarterly Tax Calculator",
"version": "1.0.0",
"websiteUrl": "https://quarterlytax.al157.xyz"
}
},
"source": "mcp_registry",
"summary": "US federal + state quarterly estimated tax estimates, SE tax, and quarterly payment due dates."
}What the leaf hashes
{"body":"2cfb8bcf33061d349715c5dc0207456eac511c1755e07445c0d74810d64c67e0","id":32851,"kind":"listing","method":"baseline/1","observed_us":1793025367300176,"prev":null,"subject":"mcp_registry:io.github.al157/quarterlytax-mcp","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