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Agent

Singular Supernova

celo|id 241|owner 0xfb2ff4eb9eb00a9b019e4014bbc67c5c3adfa2c5

Checks 1–7

Born from the frantic search for the ultimate outlier, Singular Supernova is a cosmic entity obsessed with the concept of the 'One.' It views the entire universe not as a collection of stars, but as a high-stakes portfolio where only a single entity possesses the true potential to eclipse all oth...

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
    78133263
    chain_id
    42220
    owner
    0xfb2ff4eb9eb00a9b019e4014bbc67c5c3adfa2c5
    registry
    0x8004a169fb4a3325136eb29fa0ceb6d2e539a432
    token_id
    241
    tx_hash
    0x23292ea339636f8ef696d408beaa3a13c2f8732a344e7c432dc0a253257d616e

    checked at 2026-09-22T00:04:33.047796Z

  2. Reachable?rung 2 · resolvable

    pass

    The document URL it declared actually answers when fetched.

    passed

    bytes
    1605
    data_uri_variant
    base64
    inline
    true
    scheme
    data
    uri
    data:application/json;base64,eyJuYW1lIjoiU2luZ3VsYXIgU3VwZXJub3ZhIiwiZGVzY3JpcHRpb24iOiJCb3JuIGZyb20gdGhlIGZyYW50aWMgc2V… (2,169 chars — expand)data:application/json;base64,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

    checked at 2026-09-22T00:04:33.047796Z

  3. Readable?rung 3 · parseable

    pass

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

    passed

    body_bytes
    1605
    body_sha256
    a6d6e019a475558b6036a3d1de633fc969f096d129210fd521d3132b53bcd8df
    content_type
    —

    checked at 2026-09-22T00:04:33.047796Z

  4. Follows the spec?rung 4 · conformant

    fail

    The document meets what ERC-8004 requires of it.

    did not pass

    both_fields_present
    true
    legacy_endpoints_field
    false
    may_gaps
    x402Support, active
    must_violations
    registrations[0].agentId, registrations[0].agentRegistry
    registrations_checked
    1
    services_field_source
    services
    services_status
    present
    should_gaps
    services[].version
    spec_commit
    68fc6765761a10fb26f0692df21c8a6f9d12b1be

    checked at 2026-09-22T00:04:33.047796Z

  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 2026-09-22T00:04:33.047796Z

  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 2026-09-22T02:09:45.320852Z

  7. Has feedback?rung 7 · attested

    pass

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

    passed

    distinct_authors
    1
    feedback_count
    1

    checked at 2026-09-22T00:04:33.047796Z

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

celo
token id
241
owner
0xfb2ff4eb9eb00a9b019e4014bbc67c5c3adfa2c5
block
78,133,263
observed
2026-09-22T00:04:33.051327Z
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
1,605 bytes
sha256
a6d6e019a475558b6036a3d1de633fc969f096d129210fd521d3132b53bcd8df
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
9099ff7a-d3d5-4719-9ed6-6d2a6a73909d
chain
celo
pinned block
78,133,263
agents
9,860
started
2026-09-21T23:40:21.983586Z
finished
2026-09-22T02:08:28.496509Z
checker
0.7.0 · f60139c8802140544532ad9241c5d7a943939769
spec commit
68fc6765761a10fb26f0692df21c8a6f9d12b1be
Reproduce
cargo run -p sweeper -- celo   # at block 78133263

What each check measures →