Agent

Jernau

mainnet|id 22731|owner 0x19660acf1f9a64951c2d51464a2962366a6e7f2c

Checks 1–7

AI-powered smart contract security audit agent. Accepts repositories via MCP or Agent Arena, runs automated analysis (static analysis, attack vector triage, multi-stage LLM review), and returns validated findings. Payments via x402 (USDC on Base).

Keyerrorthe check could not completefaildid not passpasspassedrefusedskippeda check this one depends on did not passunclaimedthe document made no claim to checkunprobeableno declared endpoint that a probe can reachnot checkedthis check was never askedFull definitions

The seven checks, with their evidence

7 recorded

Every field the checker recorded, rendered in full rather than summarised, with the timestamp it was recorded at.

Registered?rung 1 · registered
pass
The agent exists in the on-chain registry, with an owner and a document URL.
passed
block_number
26125718
chain_id
1
owner
0x19660acf1f9a64951c2d51464a2962366a6e7f2c
registry
0x8004a169fb4a3325136eb29fa0ceb6d2e539a432
token_id
22731
tx_hash
0x49d7c790d4613e61bd7f443f9cf504aa247ace7e0bd743b597d1d1a67bd3b780
checked at 2026-10-05T11:21:42.913581Z
Reachable?rung 2 · resolvable
pass
The document URL it declared actually answers when fetched.
passed
elapsed_ms
382
final_url
https://jernau.extropy.io/.well-known/agent-registration.json
http_status
200
request_url
https://jernau.extropy.io/.well-known/agent-registration.json
scheme
https
uri
https://jernau.extropy.io/.well-known/agent-registration.json
checked at 2026-10-05T11:21:42.913581Z
Readable?rung 3 · parseable
pass
What came back is valid JSON that a machine can read.
passed
body_bytes
1731
body_sha256
2e1d6e8cbe094210d5af80f93704a8adf68f4bb0487e01dcce9dbb99ae449e83
content_type
application/json
checked at 2026-10-05T11:21:42.913581Z
Follows the spec?rung 4 · conformant
pass
The document meets what ERC-8004 requires of it.
passed
both_fields_present
false
legacy_endpoints_field
false
may_gaps
supportedTrust
must_violations
(empty)
registrations_checked
1
services_field_source
services
services_status
present
should_gaps
services[].version
spec_commit
68fc6765761a10fb26f0692df21c8a6f9d12b1be
checked at 2026-10-05T11:21:42.913581Z
Claims its identity?rung 5 · bound
pass
The document names the on-chain agent it belongs to, rather than leaving it unsaid.
passed
declared_agent_id
22731
declared_chain
1
declared_registry
eip155:1:0x8004A169FB4a3325136EB29fA0ceB6D2e539a432
match
true
registrations_seen
1
checked at 2026-10-05T11:21:42.913581Z
Answers?rung 6 · live
pass
A declared endpoint responds to a probe. Not implemented yet, so nobody passes or fails it.
passed
endpoints
{"declared":"https://jernau.extropy.io/a2a","elapsed_ms":891,"final_url":"https://jernau.extropy.io/a2a/","http_status":… (909 chars — expand)
{"declared":"https://jernau.extropy.io/a2a","elapsed_ms":891,"final_url":"https://jernau.extropy.io/a2a/","http_status":404,"index":0,"kind":"https","name":"A2A","outcome":"not_live","probed":true,"probed_url":"https://jernau.extropy.io/a2a"}, {"declared":"https://mcp-relay.tail304f3.ts.net/mcp","elapsed_ms":415,"final_url":"https://mcp-relay.tail304f3.ts.net/mcp","http_status":400,"index":1,"kind":"https","name":"MCP","outcome":"not_live","probed":true,"probed_url":"https://mcp-relay.tail304f3.ts.net/mcp"}, {"declared":"https://jernau.extropy.io/.well-known/agent-card.json","elapsed_ms":338,"final_url":"https://jernau.extropy.io/.well-known/agent-card.json","http_status":200,"index":2,"kind":"https","name":"AgentCard","outcome":"live","probed":true,"probed_url":"https://jernau.extropy.io/.well-known/agent-card.json"}, {"declared":"jernau.eth","index":3,"kind":"other","name":"ENS","probed":false}
endpoints_answered_not_live
2
endpoints_declared
4
endpoints_live
1
endpoints_our_error
0
endpoints_payment_gated
0
endpoints_probeable
3
endpoints_probed
3
endpoints_refused
0
checked at 2026-10-05T15:04:06.520133Z
Has feedback?rung 7 · attested
fail
At least one on-chain feedback entry names this agent.
did not pass
distinct_authors
0
feedback_count
0
reason
no_feedback
checked at 2026-10-05T11:21:42.913581Z

Check it again, now

outside the census

Everything above is one sweep, pinned to one block. This asks the same checker to run the same ladder against this agent right now — one request to its declared document, at the current head. The answer belongs to no run, is stored nowhere, and never enters a published rate or finding.

On-chain snapshot

mainnet

token id: 22731
owner: 0x19660acf1f9a64951c2d51464a2962366a6e7f2c
block: 26,125,718
observed: 2026-10-05T11:21:42.916991Z

tokenURIopen →

https://jernau.extropy.io/.well-known/agent-registration.json

What the fetch saw

https

scheme: https
request url: https://jernau.extropy.io/.well-known/agent-registration.json
final url: https://jernau.extropy.io/.well-known/agent-registration.json
http status: 200
content type: application/json
size: 1,731 bytes
sha256: 2e1d6e8cbe094210d5af80f93704a8adf68f4bb0487e01dcce9dbb99ae449e83
elapsed: 382 ms

This run

reproducible

Every status above is scoped to this sweep, at this block. Rerun it and you should get these answers back.

run: 67b76d5d-476f-4d7a-80e1-3580feac5a40
chain: mainnet
pinned block: 26,125,718
agents: 52,139
started: 2026-10-05T10:57:44.538042Z
finished: 2026-10-05T14:22:43.904654Z
checker: 0.7.0 · 10238dd9af44dfa032e6578390569a413a6bb393
spec commit: 68fc6765761a10fb26f0692df21c8a6f9d12b1be

Reproduce

cargo run -p sweeper -- mainnet   # at block 26125718

What each check measures →

The seven checks, with their evidence

Registered?rung 1 · registered

Reachable?rung 2 · resolvable

Readable?rung 3 · parseable

Follows the spec?rung 4 · conformant

Claims its identity?rung 5 · bound

Answers?rung 6 · live

Has feedback?rung 7 · attested

Check it again, now

On-chain snapshot

What the fetch saw

This run