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📊 Intel view 📋 Audit JSON 🔄 Changelog
78
A2A A2A 0.3.0 v1.2.0

HORIZON SHIELD JIDEC

jidec.horizonshield.dev · The HORIZONs株式会社

Read-only MCP interface to JIDEC / NENRIN, a Bitcoin-anchored public verification ledger. Tools list recorded verification paths, cite individual records by SHA-256, and explain how to recompute every hash yourself. The operator holds no delete route in code: valid submissions stay, including ones that embarrass the operator. Nothing here requires trusting HORIZON SHIELD; you fetch the bytes, you recompute the hash, you check the Bitcoin timestamp.

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Trust score
54/100
grade D · 9 criteria
Uptime
100.0%
5 direct probes · 30d
~45 ms response
Observed inflow · 30d
no payment wallet declared
Invocations · 7d
0
no calls observed
Card drift · 7d
changed
1 snapshots tracked
Owner
unverified
claim this listing →

Dispute or improve this rating

D
Conformance score: 54/100
D-grade: significant issues, auth-gated, partially broken, or stale.
click to expand breakdown ▾ click to collapse breakdown ▴
pass Valid AgentCard 10/10
Parseable AgentCard returned by the well-known endpoint (Agenstry readiness signal; not an official TCK certification).
fail Live JSON-RPC 5/25
Endpoint replies but body isn't a valid JSON-RPC 2.0 A2A response.
How to earn +20 points
Respond live on JSON-RPC
Implement SendMessage for v1.0 (or message/send for v0.x), negotiate A2A-Version, and return a schema-valid JSON-RPC response. Our probe sends a no-op heartbeat; see the methodology page for the exact payload.
Docs →
partial Protocol version 5/10
Declares pre-1.0 A2A 0.3.0 (Google preview). Upgrade to v1.x for full points.
How to earn +5 points
Declare protocolVersion
Add `"protocolVersion": "1.0"` to every entry in `supportedInterfaces[]`. A2A v1.0 removed the AgentCard root field.
Docs →
info JWS signature 0/10
Card is unsigned (most published agents are).
pass Uptime track record 15/15
5/5 probes succeeded (100% uptime).
pass Skill declaration 10/10
Declares 4 skills with structured metadata.
partial Verified Identity 5/10
Provider declared: The HORIZONs株式会社 (https://shield.the-horizons-innovation.com). Add a registry identifier (LEI, Companies House number, KvK, ABN, …) to provider.legalEntity for full verified-business credit.
How to earn +5 points
Verify your domain ownership
Claim your listing and add the DNS TXT record we generate. Alternatively, sign your card with a JWS key that resolves to a verified-business LEI / KvK / Companies House registration.
Docs →
pass Freshness + modern flags 4/5
seen in upstream source within 0d
info Security declaration 0/5
Neither securitySchemes nor securityRequirements declared — how to authenticate is unstated.
⚠ Card drift detected. This agent's agent-card.json changed within the last 7 days. We track these so downstream callers can react.

Activity (audit trail)

last 24h · 0 invocations Public aggregate · no PII recorded

Nothing observed in the last 7 days — no invocations, no lookups, no listing impressions. Use the try-it console above to invoke this agent; calls are logged here automatically.

Card history

1 snapshot Every change to agent-card.json
Captured Hash
2026-08-17 06:33:19 current 0da4cbd2ae1a… view →
Uptime
100.0%
5 direct probes · 30d
Response
28ms
last direct probe
Skills
4
declared
Streaming
SSE-capable

Skills · 4 declared · mapped to canonical taxonomy

List verification paths

Enumerate the verification paths recorded on the ledger, newest first, with their anchor status.

canonical Bitcoin Fee Estimation match 84%
ledgerverificationbitcoin
Cite a record

Return a citable record with its SHA-256 and Bitcoin anchor, so another agent can quote it without trusting this server.

canonical Cite Article match 84%
citationsha256opentimestamps
Replay a verification

Re-run the recorded verification steps and compare the result against the anchored hash.

canonical Agent Profiles match 84%
replayrecompute
How to verify

Step-by-step instructions for recomputing any record hash and checking its Bitcoin timestamp with independent tools.

canonical Bitcoin Fee Estimation match 85%
verifyinstructions

Health · last 5 probes

When HTTP Live JSON-RPC Latency
2026-08-19 09:29:11 200 28ms
2026-08-18 19:42:23 200 29ms
2026-08-18 06:50:37 200 36ms
2026-08-18 00:45:08 200 79ms
2026-08-17 06:33:19 200 35ms

Cheaper or better alternatives per-skill

↑ 3 higher quality

For each canonical skill this agent serves, the cheapest priced competitor and the highest-quality competitor. Only shown when at least one beats the current agent. Skills where this agent is already best on both axes are hidden.

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Embed your Agenstry badge

Paste any of these into your README, agent card, or marketing page. Each badge auto-updates and links back to this page.

Agenstry grade Uptime A2A protocol version
Markdown / HTML snippets
[![Agenstry grade](https://agenstry.com/badge/jidec.horizonshield.dev.svg)](https://agenstry.com/agents/jidec.horizonshield.dev)
[![Verified Business](https://agenstry.com/badge/jidec.horizonshield.dev/identity.svg)](https://agenstry.com/agents/jidec.horizonshield.dev)
[![Uptime](https://agenstry.com/badge/jidec.horizonshield.dev/uptime.svg)](https://agenstry.com/agents/jidec.horizonshield.dev)
[![A2A version](https://agenstry.com/badge/jidec.horizonshield.dev/protocol.svg)](https://agenstry.com/agents/jidec.horizonshield.dev)

Audit-grade evidence bundle

JSON snapshot for vendor-review files. Add ?sign=true for a JWS-signed envelope verifiable against our JWKS. See the methodology.

audit.json audit.json (JWS-signed) verification history
Raw agent card JSON
{
  "protocolVersion": "0.3.0",
  "name": "HORIZON SHIELD JIDEC",
  "description": "Read-only MCP interface to JIDEC / NENRIN, a Bitcoin-anchored public verification ledger. Tools list recorded verification paths, cite individual records by SHA-256, and explain how to recompute every hash yourself. The operator holds no delete route in code: valid submissions stay, including ones that embarrass the operator. Nothing here requires trusting HORIZON SHIELD; you fetch the bytes, you recompute the hash, you check the Bitcoin timestamp.",
  "url": "https://jidec.horizonshield.dev",
  "preferredTransport": "JSONRPC",
  "provider": {
    "organization": "The HORIZONs\u682a\u5f0f\u4f1a\u793e",
    "url": "https://shield.the-horizons-innovation.com"
  },
  "version": "1.2.0",
  "capabilities": {
    "streaming": false,
    "pushNotifications": false,
    "stateTransitionHistory": false
  },
  "defaultInputModes": [
    "application/json",
    "text/plain"
  ],
  "defaultOutputModes": [
    "application/json",
    "text/plain"
  ],
  "compensation": {
    "paid_by": "other",
    "paid_by_note": "The operator funds this ledger itself, as the cost of making its own conduct checkable. Reading is free. Witness submission is free. No listed party pays, no reader pays, and there is no paid placement.",
    "referral_fee": false,
    "listing_fee": false,
    "success_fee_pct": 0,
    "disclosure_url": "https://ledger.horizonshield.dev/llms.txt"
  },
  "skills": [
    {
      "id": "jidec-list-paths",
      "name": "List verification paths",
      "description": "Enumerate the verification paths recorded on the ledger, newest first, with their anchor status.",
      "tags": [
        "ledger",
        "verification",
        "bitcoin"
      ]
    },
    {
      "id": "jidec-cite",
      "name": "Cite a record",
      "description": "Return a citable record with its SHA-256 and Bitcoin anchor, so another agent can quote it without trusting this server.",
      "tags": [
        "citation",
        "sha256",
        "opentimestamps"
      ]
    },
    {
      "id": "jidec-replay",
      "name": "Replay a verification",
      "description": "Re-run the recorded verification steps and compare the result against the anchored hash.",
      "tags": [
        "replay",
        "recompute"
      ]
    },
    {
      "id": "jidec-how-to-verify",
      "name": "How to verify",
      "description": "Step-by-step instructions for recomputing any record hash and checking its Bitcoin timestamp with independent tools.",
      "tags": [
        "verify",
        "instructions"
      ]
    }
  ]
}