# JIDEC: Bitcoin-anchored public verification ledger (NENRIN)

> Read agents' Bitcoin-anchored conduct history (NENRIN) and cite and recompute ledger records.

- name: io.github.ogasurfproject-jpg/jidec
- version: 1.3.0
- connection class: R0 (autonomous)
- trust: 93/100 flags: duplicate-repo
- quality: 91/100 (strong)
- owner: not claimed
- descriptor: https://api.protogrid.dev/v1/servers/io.github.ogasurfproject-jpg%2Fjidec
- tools: https://api.protogrid.dev/v1/servers/io.github.ogasurfproject-jpg%2Fjidec/tools

**An agent can connect right now, no human step.** Remote endpoint, no authentication, reachable on the last probe.

## Connection (mcpServers)

```json
{
  "mcpServers": {
    "jidec": {
      "type": "http",
      "url": "https://jidec.horizonshield.dev/mcp"
    }
  }
}
```


## Trust

- hygiene: 80
- liveness: 99
- freshness: 100
- provenance: 90
- drivers: +repository +namespace-matches-repo +website +reachable +uptime-97% +updated-21d-ago -duplicate-repo(9 names)
- Derived from observable signals (official registry feed and our own credential-free probes); no code audit performed.

## Quality 91/100 (strong)

### protocol: 75 (weight 25)

- warn `protocol.modern`: newest supported version is 2025-11-25; 2026-07-28 not supported, older versions are deprecated until 2027-07-28
- n/a `protocol.stateless`: only applies to 2026-07-28 servers
- pass `protocol.transport`: streamable HTTP
- n/a `protocol.list_ttl`: only applies to 2026-07-28 servers

### authorization: n/a (weight 15)

- n/a `auth.prm`, `auth.as_metadata`, `auth.cimd`: no remote uses OAuth
- n/a `auth.secret_in_url`: no templated URL

### tool hygiene: 100 (weight 30)

- pass `tools.descriptions`: every tool has a description
- pass `tools.description_length`: descriptions are concise
- pass `tools.schemas`: every tool has an object input schema
- pass `tools.annotations`: 9 of 9 tools declare readOnlyHint or destructiveHint
- pass `tools.directory_hints`: every tool declares readOnlyHint, destructiveHint, idempotentHint and openWorldHint
- pass `tools.token_cost`: about 1,222 tokens to load every tool
- pass `tools.api_dump`: tools are not a one-to-one API dump

### stability: 100 (weight 15)

- pass `stability.changes`: 5 tool changes in 30 days
- pass `stability.rug_pull`: no tool changed its meaning under the same name

### dependencies: n/a (weight 15)

- n/a `deps.known_vulns`, `deps.mcp_sdk_version`, `deps.resolvable`: no npm or PyPI package

- tools: 9, about 1,222 tokens to load them all
- tool set hash: e8b445f360a93c6dbb53faafd1f27493
- tools last changed: 2026-09-30T10:35:16.745Z
- badge: [![protogrid quality](https://protogrid.dev/badge/io.github.ogasurfproject-jpg/jidec.svg)](https://protogrid.dev/servers/io.github.ogasurfproject-jpg/jidec)
- Checks run on what our credential-free, read-only probes observe; tools are never called and no code audit is performed.

### Tool changes

- 2026-09-30 `nenrin_ledger_entry` added
  - Return ledger entry n as the ledger serves it: claim_sha256, the canonical record bytes, work description, OpenTimestamps status and Bitcoin block when anchored. Pair with jidec_how_to_verify to recompute it.
- 2026-09-30 `nenrin_ledger_head` added
  - Return the current head of the JIDEC/NENRIN ledger: entry count n, the head hash, and the end marker bound into the chain (jidec-head-v1) with the recipe to recompute it. Compare it with a head you saw earlier to detect truncation or rewrite.
- 2026-09-30 `nenrin_witness` added
  - Return one NENRIN witness record by its record SHA-256: pending or anchored, and when anchored, the ledger entry and batch that carry it. Use it to check a walk someone says they submitted.
- 2026-09-30 `nenrin_trust_signal` added
  - Return the compact NENRIN signal for an endpoint: counts of anchored measurements, witness diversity and freshness, in a shape a trust engine or orderer can read. No score, no allow or deny.
- 2026-09-30 `nenrin_resume` added
  - Return the NENRIN résumé of an agent or MCP endpoint: every recorded measurement that touches its origin (by the gate and by outside witnesses, signed or not), which are Bitcoin-anchored, discrepancies, rings, agreements, and the records not counted with the reason. Includes resume_sha256 and a recompute recipe. A history, not a score. Absent means no record, not a negative finding.

Full history: https://api.protogrid.dev/v1/servers/io.github.ogasurfproject-jpg%2Fjidec/changes

## Remotes

- https://jidec.horizonshield.dev/mcp (streamable-http, auth none, reachable true, uptime30d 0.96581197)

## Packages

_none_

## Tools (9)

- `jidec_cite`: Resolve and INDEPENDENTLY verify any JIDEC citation. Accepts 'jidec:path:<sha>', 'jidec:entry:<n>', a bare 64-hex id, or a ledger URL. Fetches the record's exact bytes, recomputes SHA-256 locally, and confirms it equals the cited id. Returns integrity, Bitcoin anchoring status, the parsed record (verification path, claim, or v0 spec entry), and an explicit statement of what the proof does and does not cover. No trust in HORIZON SHIELD is required to accept the result.
- `jidec_how_to_verify`: Return the step-by-step recipe for verifying a JIDEC record WITHOUT trusting HORIZON SHIELD: which bytes to fetch, which hashes to recompute, which OpenTimestamps proof to check, which algorithm commit to check out, and what must match. Use this when you want to confirm the result yourself rather than repeat an assertion.
- `jidec_list_paths`: List the anchored JIDEC verification paths (most recent first), with purpose, verdict and Bitcoin anchoring status.
- `jidec_replay`: Re-observe an anchored JIDEC verification path against the live system right now and report drift. Returns MATCH (the live system still matches what was anchored) or DRIFT (it changed), node by node. Nodes that cannot be re-observed server-side are reported as deferred, never counted as drift.
- `nenrin_ledger_entry`: Return ledger entry n as the ledger serves it: claim_sha256, the canonical record bytes, work description, OpenTimestamps status and Bitcoin block when anchored. Pair with jidec_how_to_verify to recompute it.
- `nenrin_ledger_head`: Return the current head of the JIDEC/NENRIN ledger: entry count n, the head hash, and the end marker bound into the chain (jidec-head-v1) with the recipe to recompute it. Compare it with a head you saw earlier to detect truncation or rewrite.
- `nenrin_resume`: Return the NENRIN résumé of an agent or MCP endpoint: every recorded measurement that touches its origin (by the gate and by outside witnesses, signed or not), which are Bitcoin-anchored, discrepancies, rings, agreements, and the records not counted with the reason. Includes resume_sha256 and a recompute recipe. A history, not a score. Absent means no record, not a negative finding.
- `nenrin_trust_signal`: Return the compact NENRIN signal for an endpoint: counts of anchored measurements, witness diversity and freshness, in a shape a trust engine or orderer can read. No score, no allow or deny.
- `nenrin_witness`: Return one NENRIN witness record by its record SHA-256: pending or anchored, and when anchored, the ledger entry and batch that carry it. Use it to check a walk someone says they submitted.