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Agent

ducengineer

billions|id 19857|owner 0x59357ae8aea59b4e4ba6521895c95b35634c3572

Checks 1–7

ducengineer AI Agent

Keyfaildid 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

6 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
    6914383
    chain_id
    45056
    owner
    0x59357ae8aea59b4e4ba6521895c95b35634c3572
    registry
    0x8004a169fb4a3325136eb29fa0ceb6d2e539a432
    token_id
    19857
    tx_hash
    0x3b9a810b8ef097cb83ce0d17fc5ecb6c6e5f60cdef9556909234b96ef7b762f2

    checked at 2026-08-24T10:25:17.442683Z

  2. Reachable?rung 2 · resolvable

    pass

    The document URL it declared actually answers when fetched.

    passed

    bytes
    822
    data_uri_variant
    base64
    inline
    true
    scheme
    data
    uri
    data:application/json;base64,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

    checked at 2026-08-24T10:25:17.442683Z

  3. Readable?rung 3 · parseable

    pass

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

    passed

    body_bytes
    822
    body_sha256
    f99a2f70205c9db5a2ffd2e1b8d5b218d6179d2422511990224ca33422433c99
    content_type
    —

    checked at 2026-08-24T10:25:17.442683Z

  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
    x402Support, active, supportedTrust
    must_violations
    (empty)
    registrations_checked
    0
    services_field_source
    neither
    services_status
    absent
    should_gaps
    type, image, services, registrations
    spec_commit
    68fc6765761a10fb26f0692df21c8a6f9d12b1be

    checked at 2026-08-24T10:25:17.442683Z

  5. Claims its identity?rung 5 · bound

    unclaimed

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

    unclaimed — the document made no claim to check

    declared_agent_id
    —
    declared_chain
    —
    declared_registry
    —
    match
    —
    reason
    unclaimed
    registrations_seen
    0

    checked at 2026-08-24T10:25:17.442683Z

  6. Answers?rung 6 · —

    not checked

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

    not checked — this check was never asked

    This run never reached this check for this agent.

  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 2026-08-24T10:25:17.442683Z

On-chain snapshot

billions
token id
19857
owner
0x59357ae8aea59b4e4ba6521895c95b35634c3572
block
6,914,383
observed
2026-08-24T10:25:17.445014Z
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
822 bytes
sha256
f99a2f70205c9db5a2ffd2e1b8d5b218d6179d2422511990224ca33422433c99
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
b05a52b0-6b21-436d-bdb4-48a9a85389f6
chain
billions
pinned block
6,914,383
agents
25,976
started
2026-08-24T09:44:35.474930Z
finished
2026-08-24T10:34:37.919133Z
checker
0.7.0 · 9d5393c75e1c70208ad73f51dc4685b4e5f5c37d
spec commit
68fc6765761a10fb26f0692df21c8a6f9d12b1be
Reproduce
cargo run -p sweeper -- billions   # at block 6914383

What each check measures →