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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.

  1. Registered?rung 1 · registered

    pass

    The agent exists in the on-chain registry, with an owner and a document URL.

    passed

    block_number
    25824613
    chain_id
    1
    owner
    0xbf56c7852700328b23055a4b5dce27cfc9f0d1d3
    registry
    0x8004a169fb4a3325136eb29fa0ceb6d2e539a432
    token_id
    27911
    tx_hash
    0xae000e5912b4098ff3f23c2e6e5686cf75098fbcaddc78c549f2f19d8fc7708f

    checked at 2026-08-24T11:37:23.570211Z

  2. Reachable?rung 2 · resolvable

    pass

    The document URL it declared actually answers when fetched.

    passed

    elapsed_ms
    524
    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 2026-08-24T11:37:23.570211Z

  3. 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 2026-08-24T11:37:23.570211Z

  4. 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 2026-08-24T11:37:23.570211Z

  5. 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 2026-08-24T11:37:23.570211Z

  6. 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":1713,"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":1047,"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":1004,"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":1040,"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 2026-08-24T13:24:55.917314Z

  7. 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 2026-08-24T11:37:23.570211Z

On-chain snapshot

mainnet
token id
27911
owner
0xbf56c7852700328b23055a4b5dce27cfc9f0d1d3
block
25,824,613
observed
2026-08-24T11:37:23.572660Z
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
524 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
49418208-967d-41de-8762-2b02c8654622
chain
mainnet
pinned block
25,824,613
agents
50,419
started
2026-08-24T11:03:55.159273Z
finished
2026-08-24T12:45:59.131330Z
checker
0.7.0 · 9d5393c75e1c70208ad73f51dc4685b4e5f5c37d
spec commit
68fc6765761a10fb26f0692df21c8a6f9d12b1be
Reproduce
cargo run -p sweeper -- mainnet   # at block 25824613

What each check measures →