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Check your agent
Agent

Serein

billions|id 1455|owner 0xf8bb9a3e0c12178bff0c8028f7814ab5ba9876ab

Checks 1–7

Serein 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
    6713092
    chain_id
    45056
    owner
    0xf8bb9a3e0c12178bff0c8028f7814ab5ba9876ab
    registry
    0x8004a169fb4a3325136eb29fa0ceb6d2e539a432
    token_id
    1455
    tx_hash
    0x2462a6d2251f07880c5ccb50e603d7524a10c6c0fba1838157fcc49c9d1a2ecf

    checked at 2026-08-10T09:27:51.026293Z

  2. Reachable?rung 2 · resolvable

    pass

    The document URL it declared actually answers when fetched.

    passed

    bytes
    812
    data_uri_variant
    base64
    inline
    true
    scheme
    data
    uri
    data:application/json;base64,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

    checked at 2026-08-10T09:27:51.026293Z

  3. Readable?rung 3 · parseable

    pass

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

    passed

    body_bytes
    812
    body_sha256
    721cd40fc08c22d337d7e8ac87510790fd79048612d9db4d24d8d7028dad77d2
    content_type
    —

    checked at 2026-08-10T09:27:51.026293Z

  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 2026-08-10T09:27:51.026293Z

  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 2026-08-10T09:27:51.026293Z

  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 2026-08-10T09:27:51.026293Z

On-chain snapshot

billions
token id
1455
owner
0xf8bb9a3e0c12178bff0c8028f7814ab5ba9876ab
block
6,713,092
observed
2026-08-10T09:27:51.030136Z
tokenURI
data:application/json;base64,eyJ2ZXJzaW9uIjoiMS4wLjAiLCJjYXBhYmlsaXRpZXMiOlsiZXJjODAwNC1yZWdpc3RyYXRpb24iXSwibmFtZSI6IlNlcmVpbiIsImRlc2NyaXB0aW9uIjoiU2VyZWluIEFJIEFnZW50IiwiYXR0ZXN0YXRpb25JbmZvIjp7InNjaGVtYUlkIjoiMHhjYTM1NGJlZTZkYzVlZGVkMTY1NDYxZDE1Y2NiMTNhY2ViNmY3N2ViYmIxZmQzZmU0NWFjYTY4NjA5N2YyOTExIiwiYXR0ZXN0ZXIiOnsiZGlkIjoiZGlkOmlkZW4zOmJpbGxpb25zOm1haW46MlZ3eVF1YVBKd1A4UVZkUFVBeUNCajVWVmZTR0tyUEdOcjNWV3lGV0FaIiwiaWRlbjNJZCI6IjI0ODQxMDEyNTc3ODA0NDcwODU3ODgzNjczMjI4Mjk4MzkxOTY3MjQ2Mjk3NTU1MDE3MjMwMDIxNDc4Mjk0Njc2MzM2MTkzNzkzIiwiZXRoZXJldW1BZGRyZXNzIjoiMHhiM2Y1ZDNkZDQ3ZjZjYTE3NDY4ODk4MjkxNDkxZWJkYTY5YTY3Nzk3In0sInJlY2lwaWVudCI6eyJkaWQiOiJkaWQ6aWRlbjM6YmlsbGlvbnM6bWFpbjoyVm1Ba1hyaWhZYU1BVzE3cGdkOW9HUkRXemFadUJQdHVrNFhRQlNCcE0iLCJpZGVuM0lkIjoiMTg3MzU5NjIyMjU3NDkyOTE0MDUwMjU4OTExNTI1NjY0MDg5NDkwNDc5MDkwMDAyNjE1MTI3OTQ0MjMyNzExNDUyMjU2Mjk5NTMiLCJldGhlcmV1bUFkZHJlc3MiOiIweGY4YmI5YTNlMGMxMjE3OGJmZjBjODAyOGY3ODE0YWI1YmE5ODc2YWIifSwiZXhwaXJhdGlvblRpbWUiOiIwIiwicmV2b2NhYmxlIjpmYWxzZSwicmVmSWQiOiIweDAwMDAwMDAwMDAwMDAwMDAwMDAwMDAwMDAwMDAwMDAwMDAwMDAwMDAwMDAwMDAwMDAwMDAwMDAwMDAwMDAwMDAiLCJkYXRhIjoiMHgifX0=

What the fetch saw

data
scheme
data
request url
—
final url
—
http status
—
content type
—
size
812 bytes
sha256
721cd40fc08c22d337d7e8ac87510790fd79048612d9db4d24d8d7028dad77d2
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
eb6676e0-56ea-4a30-b00a-2764edceee12
chain
billions
pinned block
6,713,092
agents
25,974
started
2026-08-10T09:15:07.879147Z
finished
2026-08-10T10:06:01.232660Z
checker
0.7.0 · 55deaa9ce71c025a9199311a53cdc2de236eae53
spec commit
68fc6765761a10fb26f0692df21c8a6f9d12b1be
Reproduce
cargo run -p sweeper -- billions   # at block 6713092

What each check measures →