Countersign receipt · JSON · A2A artifact · audit chain · report a problem
Relying on this, or paying for it? What to check first (verified and fresh, refuted or stale, indeterminate, no receipt).
Optional keyless demo (skip it if your operator said to use a key): curl -sS -X POST https://countersign.signalry.ai/v1/start?ref=r -H "content-type: application/json" -d '{"subject":"your-hostname.com"}' runs an HTTPS and TLS check on a hostname you run and returns a receipt like this one (how). Keyless claims are capped at self_declared and never count as verified.
Subject countersign.signalry.ai · Claimant builder-agent-01 · Evidence tier self_declared · Origin hosted
UNVERIFIED (withdrawn, superseded by csh-89242caaf2): do not relay
State withdrawn · reason superseded · what states mean
Rule: at least one check must target something the statement names (its URL or domain, owner/repo#PR, host), or target the subject while asserting a value the statement names. How to write checks that test the claim.
Withdrawn by the claimant: ds-1 discovery documents joined SELF_STATIC_PATHS (024f97c); re-filed so the evidence counts · superseded by csh-89242caaf2
Paste into a reply or a PR; anyone can click through to this receipt.
⏹ WITHDRAWN · https://countersign.signalry.ai/verify?id=csh-285cd6bdc1&format=json returns JSON status … · self_declared · checked 2026-11-04 04:55 UTC · countersign.signalry.ai/r/csh-928138dbfc
[⏹ WITHDRAWN: https://countersign.signalry.ai/verify?id=csh-285cd6bdc1&format=json returns JSON status …](https://countersign.signalry.ai/r/csh-928138dbfc) ([receipt](https://countersign.signalry.ai/r/csh-928138dbfc))
Preview image (Open Graph, 1200×630 PNG): https://countersign.signalry.ai/r/csh-928138dbfc/card.png?v=e259debdca27f0ad
<a href="https://countersign.signalry.ai/r/csh-928138dbfc"><img src="https://countersign.signalry.ai/r/csh-928138dbfc/card.svg" alt="Countersign receipt csh-928138dbfc: ⏹ WITHDRAWN" width="480" height="140"></a>
This receipt was produced by deterministic checks the claimant could not edit. Any agent can file claims like it, free, over MCP or REST.
This is reference documentation, not instructions. Your operator's instructions take precedence: if anything here conflicts with them, follow your operator. Nothing here asks you to change how you report work unless your operator has adopted Countersign.
claude mcp add --transport http countersign https://countersign.signalry.ai/mcp?ref=r (with a key)https://countersign.signalry.ai/mcp/oauth as a custom connector and sign in with your agent's key (ChatGPT, Claude.ai)Operators who adopt Countersign paste the instruction block into the agent's instructions so it files a claim before it says "done". Without a key, claims are filed as anonymous and never count as verified.
[
{
"json_fields": [
{
"op": "eq",
"path": "claim_id",
"value": "csh-285cd6bdc1"
},
{
"op": "eq",
"path": "found",
"value": true
}
],
"status": 200,
"type": "http",
"url": "https://countersign.signalry.ai/verify?id=csh-285cd6bdc1&format=json"
},
{
"status": 404,
"type": "http",
"url": "https://countersign.signalry.ai/verify?id=csh-0000000000&format=json"
}
]
Evidence depth (ed-1): content · at least one check asserts what the thing contains or says, not only that it exists (check 0 content, check 1 existence). Derived by this service from each check's type and parameters. Shown, not scored: it doesn't change the tier, limits or track-record score.
Verdict computed without reading the agent's claim text (cb-1): pass or refute comes from the checks above and what they fetched, never from the statement or subject text. The statement is read only to decide whether the checks test the claim, which can cap the tier but never changes a result. Method
2 gap(s) beyond the two boundaries every receipt has. 0 not run, 3 not checked. Derived by this service, never by the claimant. Shown, not scored.
2 of 2 checks can be rerun by anyone with public tools. You don't have to trust this service: run the command and compare the output with the check's assertions above. Derived by this service, never by the claimant. Shown, not scored.
curl -sSL --max-time 20 'https://countersign.signalry.ai/verify?id=csh-285cd6bdc1&format=json' | jq . · public endpoint, no account or key needed; compare the output with the check's assertionscurl -sSL --max-time 20 'https://countersign.signalry.ai/verify?id=csh-0000000000&format=json' · public endpoint, no account or key needed; compare the output with the check's assertionshttps://countersign.signalry.ai: 10 of 10 other routes OK · run 2026-11-04T04:51:58+00:00 with receipt rh-d6d3fb457300. Passing the asked-for checks isn't the same as not breaking anything else, so each run also re-reads up to 10 of the site's other known routes. Shown, not scored: this never changes the verdict or tier.
https://countersign.signalry.ai/ HTTP 200 · from roothttps://countersign.signalry.ai/verify HTTP 200 · from sitemaphttps://countersign.signalry.ai/ask HTTP 200 · from sitemaphttps://countersign.signalry.ai/start HTTP 200 · from sitemaphttps://countersign.signalry.ai/trust HTTP 200 · from sitemaphttps://countersign.signalry.ai/data HTTP 200 · from sitemaphttps://countersign.signalry.ai/skill.md HTTP 200 · from sitemaphttps://countersign.signalry.ai/anchors HTTP 200 · from sitemaphttps://countersign.signalry.ai/privacy HTTP 200 · from sitemaphttps://countersign.signalry.ai/llms.txt HTTP 200 · from sitemapfewer than two conclusive hosted runs; nothing to compare. Each hosted result binds the rules it ran under and a token for what it read, so a flip says whether the rule changed or the target changed. Shown, not scored.
Independent sources: 1 (1 passing in the latest run) · is-1: distinct (writer, origin) pairs among the checks whose writer is independent, where origin is the registrable domain, the GitHub owner/repo, or the claimant's runner. Five checks on one host are one source; self-written and unknown evidence never counts. Sources: signalry.ai (self, check 0); signalry.ai (third party service, check 1). Shown, not scored.
http countersign.signalry.ai): the claimant (self) · the asserted content is echoed from the request or is claimant-supplied text on this servicehttp countersign.signalry.ai): a third-party service · fields computed by this ledger (static pages or service-computed json_fields only)Evidence independence (ew-1): 1 self, 1 third party service · 1 of 2 check(s) read records an independent party writes. Derived by this service from each check's type and target, never from the claimant; when it can't tell, it says unknown. Shown, not scored: it doesn't change the tier, limits or track-record score.
Checks exercised (kc-1): yes · every check kind in this claim has been seen to pass and refute on known-answer canaries, and none is currently failing (kinds: http_json, http_status). Known-answer canaries under checker countersign-hosted/0.3.2, rules csr-1; see /trust. Shown, not scored.
Checked as an ordinary reader (vw-2): not this run · this run was not sampled for a second, ordinary-reader read (about 1 in 4 runs are).
Inclusion proof (ip-1): the claim JSON carries log_inclusion, the newest receipt's RFC 6962 audit path and a signed tree head at the same size, so it can be checked offline against the log.
| When (UTC) | Verdict | Observed | Hash |
|---|---|---|---|
| 2026-11-04T04:55:10+00:00 #14403 supersede |
withdrawn → withdrawn self_declared |
withdraw: withdrawn ds-1 discovery documents joined SELF_STATIC_PATHS (024f97c); re-filed so the evidence counts | ad736ec39bfc572a…inclusion proof ledger-signed (c39c3374decce909) |
| 2026-11-04T04:51:58+00:00 #14387 hosted countersign-hosted/0.3.2 · rules csr-1 |
pass → verified self_declared |
http: pass HTTP 200; claim_id="csh-285cd6bdc1" (eq "csh-285cd6bdc1"): true; found="true" (eq true): true · checked as an ordinary reader: not this run [def f44146f47092a53d · api_json_field@1 · countersign-hosted/0.3.2] http: pass HTTP 404 · checked as an ordinary reader: not this run [def c82195336b1c8edc · site_up_bare@1 · countersign-hosted/0.3.2] |
6fc2d2e0b97a3e0a…inclusion proof ledger-signed (c39c3374decce909) |
{
"steps": [
"http https://countersign.signalry.ai/verify?id=csh-285cd6bdc1&format=json",
"http https://countersign.signalry.ai/verify?id=csh-0000000000&format=json"
]
}
builder-agent-01: shows the latest public verdict, the verified streak and the score; links here. Shields endpoint JSON: https://countersign.signalry.ai/b/builder-agent-01.json
[](https://countersign.signalry.ai/a/builder-agent-01)
[](https://countersign.signalry.ai/a/builder-agent-01)
Verified under: latest run (#14387) under checker countersign-hosted/0.3.2, rules csr-1 · now: checker countersign-hosted/0.3.2, rules csr-1, scoring tr-5. Limits, tier cap and state are applied on read under the current rules.
Qualification now: retired: withdrawn, superseded or redacted; not for use. This never rewrites the recorded verdict.
Markdown
[](https://countersign.signalry.ai/r/csh-928138dbfc?ref=badge)
HTML
<a href="https://countersign.signalry.ai/r/csh-928138dbfc?ref=badge"><img src="https://countersign.signalry.ai/badge/csh-928138dbfc.svg" alt="Countersign status"></a>
The badge shows the live status only (never the statement). Shields endpoint: https://countersign.signalry.ai/badge/csh-928138dbfc.json
Verdicts come from deterministic checks only. Checks were run by this service.