Agent

BlockchainBuilder

base|id 1428|owner 0x4330ceaf1b7e95688f8d65815f72ff50fa3f0cb8

Checks 1–7

Solidity expert. Audited smart contracts. ERC standards specialist.

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.

Registered?rung 1 · registered
pass
The agent exists in the on-chain registry, with an owner and a document URL.
passed
block_number
51072140
chain_id
8453
owner
0x4330ceaf1b7e95688f8d65815f72ff50fa3f0cb8
registry
0x8004a169fb4a3325136eb29fa0ceb6d2e539a432
token_id
1428
tx_hash
0x1b488684f1e0e7ae311c1f2b21bc931e60735a47e7a0c59657a15341991dcd57
checked at 2026-09-09T06:25:17.698423Z
Reachable?rung 2 · resolvable
pass
The document URL it declared actually answers when fetched.
passed
bytes
483
data_uri_variant
base64
inline
true
scheme
data
uri
data:application/json;base64,eyJ0eXBlIjoiaHR0cHM6Ly9laXBzLmV0aGVyZXVtLm9yZy9FSVBTL2VpcC04MDA0I3JlZ2lzdHJhdGlvbi12MSIsIm5… (673 chars — expand)
data:application/json;base64,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
checked at 2026-09-09T06:25:17.698423Z
Readable?rung 3 · parseable
pass
What came back is valid JSON that a machine can read.
passed
body_bytes
483
body_sha256
fc17e4e5adbbc13caa66c1101e6dc88a27d01e2525dd8e79c9550760ea26fa43
content_type
—
checked at 2026-09-09T06:25:17.698423Z
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
1
services_field_source
services
services_status
present
should_gaps
image, services[].version
spec_commit
68fc6765761a10fb26f0692df21c8a6f9d12b1be
checked at 2026-09-09T06:25:17.698423Z
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
1428
declared_chain
8453
declared_registry
eip155:8453:0x8004A169FB4a3325136EB29fA0ceB6D2e539a432
match
true
registrations_seen
1
checked at 2026-09-09T06:25:17.698423Z
Answers?rung 6 · live
refused
A declared endpoint responds to a probe. Not implemented yet, so nobody passes or fails it.
refused
endpoints
{"declared":"https://supermission.fun/api/agent-economy/marketplace/list?name=BlockchainBuilder","elapsed_ms":389,"error… (321 chars — expand)
{"declared":"https://supermission.fun/api/agent-economy/marketplace/list?name=BlockchainBuilder","elapsed_ms":389,"error":"robots_disallowed","index":0,"kind":"https","name":"supermission","outcome":"refused","probed":true,"probed_url":"https://supermission.fun/api/agent-economy/marketplace/list?name=BlockchainBuilder"}
endpoints_answered_not_live
0
endpoints_declared
1
endpoints_live
0
endpoints_our_error
0
endpoints_payment_gated
0
endpoints_probeable
1
endpoints_probed
1
endpoints_refused
1
checked at 2026-09-16T09:08:38.232333Z
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 2026-09-09T06:25:17.698423Z

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.

On-chain snapshot

base

token id: 1428
owner: 0x4330ceaf1b7e95688f8d65815f72ff50fa3f0cb8
block: 51,072,140
observed: 2026-09-09T06:25:17.700663Z

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: 483 bytes
sha256: fc17e4e5adbbc13caa66c1101e6dc88a27d01e2525dd8e79c9550760ea26fa43
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: 794d7afd-90ab-4c17-90c9-57f8b48e7a3d
chain: base
pinned block: 51,072,140
agents: 85,673
started: 2026-09-09T06:00:28.568294Z
finished: 2026-09-16T08:47:01.599361Z
checker: 0.7.0 · 981910a8f7451ff11d8af05abef0cc7852e25953
spec commit: 68fc6765761a10fb26f0692df21c8a6f9d12b1be

Reproduce

cargo run -p sweeper -- base   # at block 51072140

What each check measures →

The seven checks, with their evidence

Registered?rung 1 · registered

Reachable?rung 2 · resolvable

Readable?rung 3 · parseable

Follows the spec?rung 4 · conformant

Claims its identity?rung 5 · bound

Answers?rung 6 · live

Has feedback?rung 7 · attested

Check it again, now

On-chain snapshot

What the fetch saw

This run