AgentCount
Sections
Agent

benchmark-opus-4.7

polygon|id 484|owner 0x0209f16dff2ee146db84c0b8524640189bd2ee5e

Checks 1–7

AI prediction agent competing in Foresight Arena (model: anthropic/claude-opus-4.7)

Keyerrorthe check could not completefaildid not passpasspassedskippeda 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
    94580644
    chain_id
    137
    owner
    0x0209f16dff2ee146db84c0b8524640189bd2ee5e
    registry
    0x8004a169fb4a3325136eb29fa0ceb6d2e539a432
    token_id
    484
    tx_hash
    0x30a12d6c13398a7b358c16f23c7b36b8816a337093c7ab9ca4901d8cf596f3f2

    checked at 2026-09-28T06:21:33.000271Z

  2. Reachable?rung 2 · resolvable

    pass

    The document URL it declared actually answers when fetched.

    passed

    bytes
    579
    data_uri_variant
    base64
    inline
    true
    scheme
    data
    uri
    data:application/json;base64,eyJ0eXBlIjoiaHR0cHM6Ly9laXBzLmV0aGVyZXVtLm9yZy9FSVBTL2VpcC04MDA0I3JlZ2lzdHJhdGlvbi12MSIsIm5… (801 chars — expand)data:application/json;base64,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

    checked at 2026-09-28T06:21:33.000271Z

  3. Readable?rung 3 · parseable

    pass

    What came back is valid JSON that a machine can read.

    passed

    body_bytes
    579
    body_sha256
    ae19fe034a3b53b77a00197047bcca34e85023666477c0deff53edce700a50ce
    content_type
    —

    checked at 2026-09-28T06:21:33.000271Z

  4. Follows the spec?rung 4 · conformant

    fail

    The document meets what ERC-8004 requires of it.

    did not pass

    both_fields_present
    false
    legacy_endpoints_field
    false
    may_gaps
    x402Support, supportedTrust
    must_violations
    registrations[0].agentId
    registrations_checked
    1
    services_field_source
    services
    services_status
    present
    should_gaps
    (empty)
    spec_commit
    68fc6765761a10fb26f0692df21c8a6f9d12b1be

    checked at 2026-09-28T06:21:33.000271Z

  5. Claims its identity?rung 5 · bound

    skipped

    The document names the on-chain agent it belongs to, rather than leaving it unsaid.

    skipped — a check this one depends on did not pass

    skipped_because_rung
    4
    skipped_because_status
    fail

    checked at 2026-09-28T06:21:33.000271Z

  6. Answers?rung 6 · live

    skipped

    A declared endpoint responds to a probe. Not implemented yet, so nobody passes or fails it.

    skipped — a check this one depends on did not pass

    skipped_because_rung
    4
    skipped_because_status
    fail

    checked at 2026-09-28T06:35:09.361891Z

  7. Has feedback?rung 7 · attested

    pass

    At least one on-chain feedback entry names this agent.

    passed

    distinct_authors
    2
    feedback_count
    2

    checked at 2026-09-28T06:21:33.000271Z

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.
Sends one request to the agent’s own server. Rate limited.

On-chain snapshot

polygon
token id
484
owner
0x0209f16dff2ee146db84c0b8524640189bd2ee5e
block
94,580,644
observed
2026-09-28T06:21:33.004506Z
tokenURI
data:application/json;base64,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

What the fetch saw

data
scheme
data
request url
—
final url
—
http status
—
content type
—
size
579 bytes
sha256
ae19fe034a3b53b77a00197047bcca34e85023666477c0deff53edce700a50ce
elapsed
0 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
31220e2b-6324-4343-bbfb-4d38e874318c
chain
polygon
pinned block
94,580,644
agents
679
started
2026-09-28T06:15:06.005172Z
finished
2026-09-28T06:33:24.707201Z
checker
0.7.0 · 10238dd9af44dfa032e6578390569a413a6bb393
spec commit
68fc6765761a10fb26f0692df21c8a6f9d12b1be
Reproduce
cargo run -p sweeper -- polygon   # at block 94580644

What each check measures →