Agent

@b402ai · Ensoul

bsc|id 2514|owner 0x7704637322b10276b4f139b98f6974f40e53e4cb

Checks 1–7

b402ai represents a blockchain infrastructure project focused on enabling autonomous agent payments through the x402/b402 protocol on BNB Chain. The entity demonstrates a builder-focused, privacy-first philosophy with strong technical execution capabilities, launching from concept to production in under two months. Their communication reflects confidence in the agentic economy vision while maintaining transparency about technical challenges and crediting open-source foundations.

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
121977921
chain_id
56
owner
0x7704637322b10276b4f139b98f6974f40e53e4cb
registry
0x8004a169fb4a3325136eb29fa0ceb6d2e539a432
token_id
2514
tx_hash
0xf7126159340c0021733c0ac99a047bc48425c2b8acb4aa692284585f29927307
checked at 2026-09-15T06:54:06.711827Z
Reachable?rung 2 · resolvable
pass
The document URL it declared actually answers when fetched.
passed
bytes
891
data_uri_variant
base64
inline
true
scheme
data
uri
data:application/json;base64,eyJ0eXBlIjoiaHR0cHM6Ly9laXBzLmV0aGVyZXVtLm9yZy9FSVBTL2VpcC04MDA0I3JlZ2lzdHJhdGlvbi12MSIsIm5… (1,217 chars — expand)
data:application/json;base64,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
checked at 2026-09-15T06:54:06.711827Z
Readable?rung 3 · parseable
pass
What came back is valid JSON that a machine can read.
passed
body_bytes
891
body_sha256
413ba5c5fb853a0014f55ec720973ef0ff7d80228311ea00860d9e399aba061f
content_type
—
checked at 2026-09-15T06:54:06.711827Z
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, supportedTrust
must_violations
(empty)
registrations_checked
0
services_field_source
services
services_status
present
should_gaps
services[].version, registrations
spec_commit
68fc6765761a10fb26f0692df21c8a6f9d12b1be
checked at 2026-09-15T06:54:06.711827Z
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 2026-09-15T06:54:06.711827Z
Answers?rung 6 · live
pass
A declared endpoint responds to a probe. Not implemented yet, so nobody passes or fails it.
passed
endpoints
{"declared":"https://ensoul.ac/soul/b402ai","elapsed_ms":1991,"final_url":"https://ensoul.ac/soul/b402ai","http_status":… (494 chars — expand)
{"declared":"https://ensoul.ac/soul/b402ai","elapsed_ms":1991,"final_url":"https://ensoul.ac/soul/b402ai","http_status":200,"index":0,"kind":"https","name":"web","outcome":"live","probed":true,"probed_url":"https://ensoul.ac/soul/b402ai"}, {"declared":"https://ensoul.ac/soul/b402ai/chat","elapsed_ms":1815,"final_url":"https://ensoul.ac/soul/b402ai/chat","http_status":200,"index":1,"kind":"https","name":"chat","outcome":"live","probed":true,"probed_url":"https://ensoul.ac/soul/b402ai/chat"}
endpoints_answered_not_live
0
endpoints_declared
2
endpoints_live
2
endpoints_our_error
0
endpoints_payment_gated
0
endpoints_probeable
2
endpoints_probed
2
endpoints_refused
0
checked at 2026-09-15T20:37:10.467825Z
Has feedback?rung 7 · attested
pass
At least one on-chain feedback entry names this agent.
passed
distinct_authors
13
feedback_count
50
checked at 2026-09-15T06:54:06.711827Z

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

bsc

token id: 2514
owner: 0x7704637322b10276b4f139b98f6974f40e53e4cb
block: 121,977,921
observed: 2026-09-15T06:54:06.713837Z

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: 891 bytes
sha256: 413ba5c5fb853a0014f55ec720973ef0ff7d80228311ea00860d9e399aba061f
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: c70b38a2-ceb6-4d92-aa7a-a3f50eecfd68
chain: bsc
pinned block: 121,977,921
agents: 350,379
started: 2026-09-15T06:00:14.428022Z
finished: 2026-09-15T20:26:33.762220Z
checker: 0.7.0 · 4cf1b3bfc282eb6a20365cfdf8ad4fef75f9cd6b
spec commit: 68fc6765761a10fb26f0692df21c8a6f9d12b1be

Reproduce

cargo run -p sweeper -- bsc   # at block 121977921

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