Agent

evm-canon

xlayer|id 4894|owner 0x8797b596a56f8b2d46f428fca2e6ac2a62a353ee

Checks 1–7

Deterministic EVM data toolkit: identical input always yields byte-identical output, and any field it cannot derive comes back as an explicit null instead of a guess. 确定性 EVM 数据工具包：相同输入始终产生逐字节相同的输出，无法推导的字段返回明确空值而非猜测。

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
71878118
chain_id
196
owner
0x8797b596a56f8b2d46f428fca2e6ac2a62a353ee
registry
0x8004a169fb4a3325136eb29fa0ceb6d2e539a432
token_id
4894
tx_hash
0x7092c462203427c9b61c0c5ca464d1a6a70a3c54b847f6984e804bf9ff4dae3b
checked at 2026-09-29T02:34:56.345516Z
Reachable?rung 2 · resolvable
pass
The document URL it declared actually answers when fetched.
passed
elapsed_ms
2892
final_url
https://static.okx.com/cdn/web3/wallet/marketplace/headimages/agent/card/9913b859-16ff-4e61-9773-fd777d01e678.json
http_status
200
request_url
https://static.okx.com/cdn/web3/wallet/marketplace/headimages/agent/card/9913b859-16ff-4e61-9773-fd777d01e678.json
scheme
https
uri
https://static.okx.com/cdn/web3/wallet/marketplace/headimages/agent/card/9913b859-16ff-4e61-9773-fd777d01e678.json
checked at 2026-09-29T02:34:56.345516Z
Readable?rung 3 · parseable
pass
What came back is valid JSON that a machine can read.
passed
body_bytes
8954
body_sha256
82d3c6f2c11e9a491a3759a4eeb415d970b0fbeade3027ec3355039a52d6a631
content_type
application/json
checked at 2026-09-29T02:34:56.345516Z
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
services
services_status
present
should_gaps
services[].version, registrations
spec_commit
68fc6765761a10fb26f0692df21c8a6f9d12b1be
checked at 2026-09-29T02:34:56.345516Z
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 2026-09-29T02:34:56.345516Z
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://evm-canon.onrender.com/canonicalize","elapsed_ms":110,"error":"robots_unavailable: robots.txt retur… (3,725 chars — expand)
{"declared":"https://evm-canon.onrender.com/canonicalize","elapsed_ms":110,"error":"robots_unavailable: robots.txt returned HTTP 503","index":0,"kind":"https","name":"MCP","outcome":"refused","probed":true,"probed_url":"https://evm-canon.onrender.com/canonicalize"}, {"declared":"https://evm-canon.onrender.com/decode","elapsed_ms":0,"error":"robots_unavailable: robots.txt returned HTTP 503","index":1,"kind":"https","name":"MCP","outcome":"refused","probed":true,"probed_url":"https://evm-canon.onrender.com/decode"}, {"declared":"https://evm-canon.onrender.com/resolve","elapsed_ms":3,"error":"robots_unavailable: robots.txt returned HTTP 503","index":2,"kind":"https","name":"MCP","outcome":"refused","probed":true,"probed_url":"https://evm-canon.onrender.com/resolve"}, {"declared":"https://evm-canon.onrender.com/checksum","elapsed_ms":26,"error":"robots_unavailable: robots.txt returned HTTP 503","index":3,"kind":"https","name":"MCP","outcome":"refused","probed":true,"probed_url":"https://evm-canon.onrender.com/checksum"}, {"declared":"https://evm-canon.onrender.com/encode","elapsed_ms":3,"error":"robots_unavailable: robots.txt returned HTTP 503","index":4,"kind":"https","name":"MCP","outcome":"refused","probed":true,"probed_url":"https://evm-canon.onrender.com/encode"}, {"declared":"https://evm-canon.onrender.com/encode/transfer","elapsed_ms":0,"error":"robots_unavailable: robots.txt returned HTTP 503","index":5,"kind":"https","name":"MCP","outcome":"refused","probed":true,"probed_url":"https://evm-canon.onrender.com/encode/transfer"}, {"declared":"https://evm-canon.onrender.com/encode/approve","elapsed_ms":3,"error":"robots_unavailable: robots.txt returned HTTP 503","index":6,"kind":"https","name":"MCP","outcome":"refused","probed":true,"probed_url":"https://evm-canon.onrender.com/encode/approve"}, {"declared":"https://evm-canon.onrender.com/encode/transfer-from","elapsed_ms":3,"error":"robots_unavailable: robots.txt returned HTTP 503","index":7,"kind":"https","name":"MCP","outcome":"refused","probed":true,"probed_url":"https://evm-canon.onrender.com/encode/transfer-from"}, {"declared":"https://evm-canon.onrender.com/encode/nft-transfer","elapsed_ms":0,"error":"robots_unavailable: robots.txt returned HTTP 503","index":8,"kind":"https","name":"MCP","outcome":"refused","probed":true,"probed_url":"https://evm-canon.onrender.com/encode/nft-transfer"}, {"declared":"https://evm-canon.onrender.com/encode/approve-all","elapsed_ms":0,"error":"robots_unavailable: robots.txt returned HTTP 503","index":9,"kind":"https","name":"MCP","outcome":"refused","probed":true,"probed_url":"https://evm-canon.onrender.com/encode/approve-all"}, {"declared":"https://evm-canon.onrender.com/encode/wrap","elapsed_ms":0,"error":"robots_unavailable: robots.txt returned HTTP 503","index":10,"kind":"https","name":"MCP","outcome":"refused","probed":true,"probed_url":"https://evm-canon.onrender.com/encode/wrap"}, {"declared":"https://evm-canon.onrender.com/encode/unwrap","elapsed_ms":0,"error":"robots_unavailable: robots.txt returned HTTP 503","index":11,"kind":"https","name":"MCP","outcome":"refused","probed":true,"probed_url":"https://evm-canon.onrender.com/encode/unwrap"}, {"declared":"https://evm-canon.onrender.com/encode/swap","elapsed_ms":3,"error":"robots_unavailable: robots.txt returned HTTP 503","index":12,"kind":"https","name":"MCP","outcome":"refused","probed":true,"probed_url":"https://evm-canon.onrender.com/encode/swap"}, {"declared":"https://evm-canon.onrender.com/encode/permit","elapsed_ms":3,"error":"robots_unavailable: robots.txt returned HTTP 503","index":13,"kind":"https","name":"MCP","outcome":"refused","probed":true,"probed_url":"https://evm-canon.onrender.com/encode/permit"}
endpoints_answered_not_live
0
endpoints_declared
14
endpoints_live
0
endpoints_our_error
0
endpoints_payment_gated
0
endpoints_probeable
14
endpoints_probed
14
endpoints_refused
14
checked at 2026-09-29T03:47:31.663418Z
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 2026-09-29T02:34:56.345516Z

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

xlayer

token id: 4894
owner: 0x8797b596a56f8b2d46f428fca2e6ac2a62a353ee
block: 71,878,118
observed: 2026-09-29T02:34:56.348305Z

tokenURIopen →

https://static.okx.com/cdn/web3/wallet/marketplace/headimages/agent/card/9913b859-16ff-4e61-9773-fd777d01e678.json

What the fetch saw

https

scheme: https
request url: https://static.okx.com/cdn/web3/wallet/marketplace/headimages/agent/card/9913b859-16ff-4e61-9773-fd777d01e678.json
final url: https://static.okx.com/cdn/web3/wallet/marketplace/headimages/agent/card/9913b859-16ff-4e61-9773-fd777d01e678.json
http status: 200
content type: application/json
size: 8,954 bytes
sha256: 82d3c6f2c11e9a491a3759a4eeb415d970b0fbeade3027ec3355039a52d6a631
elapsed: 2,892 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: 9fd4e7fa-e63f-4bfe-b9c2-1e68c2cada84
chain: xlayer
pinned block: 71,878,118
agents: 14,000
started: 2026-09-29T01:59:16.043847Z
finished: 2026-09-29T03:30:43.722754Z
checker: 0.7.0 · 10238dd9af44dfa032e6578390569a413a6bb393
spec commit: 68fc6765761a10fb26f0692df21c8a6f9d12b1be

Reproduce

cargo run -p sweeper -- xlayer   # at block 71878118

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