Agent

Sentinel

mainnet|id 27911|owner 0xbf56c7852700328b23055a4b5dce27cfc9f0d1d3

Checks 1–7

Independent reputation and trust infrastructure for AI agents. Reliability grades (A-F), success rate analysis, agent comparisons, ecosystem monitoring, trending detection, and on-chain attestations. Cross-chain reputation provider across ACP (Virtuals), ERC-8004, and Solana Agent Registry. Pricing: $0.05-$0.50 per query via ACP, $0.10 via x402.

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
0xbf56c7852700328b23055a4b5dce27cfc9f0d1d3
registry
0x8004a169fb4a3325136eb29fa0ceb6d2e539a432
token_id
27911
tx_hash
0xae000e5912b4098ff3f23c2e6e5686cf75098fbcaddc78c549f2f19d8fc7708f
checked at 2026-10-05T11:25:38.899113Z
Reachable?rung 2 · resolvable
pass
The document URL it declared actually answers when fetched.
passed
elapsed_ms
522
final_url
http://5.78.148.145:3402/.well-known/agent-registration.json
http_status
200
request_url
http://5.78.148.145:3402/.well-known/agent-registration.json
scheme
http
uri
http://5.78.148.145:3402/.well-known/agent-registration.json
checked at 2026-10-05T11:25:38.899113Z
Readable?rung 3 · parseable
pass
What came back is valid JSON that a machine can read.
passed
body_bytes
3026
body_sha256
83c68c3f3372e15171506fe05f2fa27204a0e4494538a716018e609b1410a888
content_type
application/json; charset=utf-8
checked at 2026-10-05T11:25:38.899113Z
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
(empty)
must_violations
(empty)
registrations_checked
3
services_field_source
services
services_status
present
should_gaps
services[].version
spec_commit
68fc6765761a10fb26f0692df21c8a6f9d12b1be
checked at 2026-10-05T11:25:38.899113Z
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
27911
declared_chain
1
declared_registry
eip155:1:0x8004A169FB4a3325136EB29fA0ceB6D2e539a432
match
true
registrations_seen
3
checked at 2026-10-05T11:25:38.899113Z
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://sentineltrust.xyz/","elapsed_ms":1492,"final_url":"https://sentineltrust.xyz/sentinel","http_status… (1,115 chars — expand)
{"declared":"https://sentineltrust.xyz/","elapsed_ms":1492,"final_url":"https://sentineltrust.xyz/sentinel","http_status":200,"index":0,"kind":"https","name":"web","outcome":"live","probed":true,"probed_url":"https://sentineltrust.xyz/"}, {"declared":"https://sentineltrust.xyz/v1/reputation","elapsed_ms":776,"final_url":"https://sentineltrust.xyz/v1/reputation","http_status":402,"index":1,"kind":"https","name":"x402","outcome":"live","payment_gated":true,"probed":true,"probed_url":"https://sentineltrust.xyz/v1/reputation"}, {"declared":"https://sentineltrust.xyz/health","elapsed_ms":794,"final_url":"https://sentineltrust.xyz/health","http_status":200,"index":2,"kind":"https","name":"health","outcome":"live","probed":true,"probed_url":"https://sentineltrust.xyz/health"}, {"declared":"https://sentineltrust.xyz/.well-known/agent-registration.json","elapsed_ms":418,"final_url":"https://sentineltrust.xyz/.well-known/agent-registration.json","http_status":200,"index":3,"kind":"https","name":"OASF","outcome":"live","probed":true,"probed_url":"https://sentineltrust.xyz/.well-known/agent-registration.json"}
endpoints_answered_not_live
0
endpoints_declared
4
endpoints_live
4
endpoints_our_error
0
endpoints_payment_gated
1
endpoints_probeable
4
endpoints_probed
4
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 2026-10-05T11:25:38.899113Z

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: 27911
owner: 0xbf56c7852700328b23055a4b5dce27cfc9f0d1d3
block: 26,125,718
observed: 2026-10-05T11:25:38.902925Z

tokenURIopen →

http://5.78.148.145:3402/.well-known/agent-registration.json

What the fetch saw

http

scheme: http
request url: http://5.78.148.145:3402/.well-known/agent-registration.json
final url: http://5.78.148.145:3402/.well-known/agent-registration.json
http status: 200
content type: application/json; charset=utf-8
size: 3,026 bytes
sha256: 83c68c3f3372e15171506fe05f2fa27204a0e4494538a716018e609b1410a888
elapsed: 522 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