Agent

Fixr

arbitrum|id 417|owner 0xbe2cc1861341f3b058a3307385beba84167b3fa4

Checks 1–7

Autonomous builder agent. Ships Farcaster mini apps, Solana programs, Stacks contracts, and full-stack dApps. Built Scry (bonding curve scanner), Ampr (on-chain leaderboard), Forge (live autonomous builder), Commit Shards (generative NFTs from git SHAs), and Sigil (living NFT billboard). Contributed to coinbase/onchainkit and farcasterxyz/hub-monorepo.

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
507357741
chain_id
42161
owner
0xbe2cc1861341f3b058a3307385beba84167b3fa4
registry
0x8004a169fb4a3325136eb29fa0ceb6d2e539a432
token_id
417
tx_hash
0xf7706813cac2f6debbdbc3ee1f48f076557d1f119b0db6346dd93d119458ff6a
checked at 2026-09-21T07:46:07.071019Z
Reachable?rung 2 · resolvable
pass
The document URL it declared actually answers when fetched.
passed
elapsed_ms
481627
final_url
https://gateway.pinata.cloud/ipfs/QmRcyCEebLP6ZQgSX8wevmWc6emm6LYxLfd8hpqWUgk8L5
gateway_attempts
{"error":null,"gateway":"https://ipfs.io/ipfs/","http_status":429}, {"error":"ssrf_blocked: dns resolution failed: faile… (337 chars — expand)
{"error":null,"gateway":"https://ipfs.io/ipfs/","http_status":429}, {"error":"ssrf_blocked: dns resolution failed: failed to lookup address information: Temporary failure in name resolution","gateway":"https://cloudflare-ipfs.com/ipfs/","http_status":null}, {"error":null,"gateway":"https://gateway.pinata.cloud/ipfs/","http_status":200}
http_status
200
request_url
https://gateway.pinata.cloud/ipfs/QmRcyCEebLP6ZQgSX8wevmWc6emm6LYxLfd8hpqWUgk8L5
scheme
ipfs
uri
ipfs://QmRcyCEebLP6ZQgSX8wevmWc6emm6LYxLfd8hpqWUgk8L5
via_gateway
https://gateway.pinata.cloud/ipfs/
checked at 2026-09-21T07:46:07.071019Z
Readable?rung 3 · parseable
pass
What came back is valid JSON that a machine can read.
passed
body_bytes
1353
body_sha256
9f4cd14c9e57fcd6d9e030f01da0a87eeb095aca5d73d68c6b0726d854799d95
content_type
application/json
checked at 2026-09-21T07:46:07.071019Z
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
services[].version
spec_commit
68fc6765761a10fb26f0692df21c8a6f9d12b1be
checked at 2026-09-21T07:46:07.071019Z
Claims its identity?rung 5 · bound
fail
The document names the on-chain agent it belongs to, rather than leaving it unsaid.
did not pass
declared_agent_id
22820
declared_chain
—
declared_registry
0x8004A169FB4a3325136EB29fA0ceB6D2e539a432
match
false
registrations_seen
1
checked at 2026-09-21T07:46:07.071019Z
Answers?rung 6 · live
fail
A declared endpoint responds to a probe. Not implemented yet, so nobody passes or fails it.
did not pass
endpoints
{"declared":"https://agent.fixr.nexus","elapsed_ms":619,"final_url":"https://fixr.nexus/","http_status":404,"index":0,"k… (729 chars — expand)
{"declared":"https://agent.fixr.nexus","elapsed_ms":619,"final_url":"https://fixr.nexus/","http_status":404,"index":0,"kind":"https","name":"web","outcome":"not_live","probed":true,"probed_url":"https://agent.fixr.nexus"}, {"declared":"https://fixr.nexus","elapsed_ms":270,"final_url":"https://fixr.nexus/","http_status":404,"index":1,"kind":"https","name":"web","outcome":"not_live","probed":true,"probed_url":"https://fixr.nexus"}, {"declared":"https://agent.fixr.nexus/.well-known/agent.json","elapsed_ms":311,"final_url":"https://agent.fixr.nexus/.well-known/agent.json","http_status":404,"index":2,"kind":"https","name":"A2A","outcome":"not_live","probed":true,"probed_url":"https://agent.fixr.nexus/.well-known/agent.json"}
endpoints_answered_not_live
3
endpoints_declared
3
endpoints_live
0
endpoints_our_error
0
endpoints_payment_gated
0
endpoints_probeable
3
endpoints_probed
3
endpoints_refused
0
checked at 2026-09-21T22:58:57.876984Z
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 2026-09-21T07:46:07.071019Z

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

arbitrum

token id: 417
owner: 0xbe2cc1861341f3b058a3307385beba84167b3fa4
block: 507,357,741
observed: 2026-09-21T07:46:07.075029Z

tokenURIopen via ipfs.io →

ipfs://QmRcyCEebLP6ZQgSX8wevmWc6emm6LYxLfd8hpqWUgk8L5

What the fetch saw

ipfs

scheme: ipfs
request url: https://gateway.pinata.cloud/ipfs/QmRcyCEebLP6ZQgSX8wevmWc6emm6LYxLfd8hpqWUgk8L5
final url: https://gateway.pinata.cloud/ipfs/QmRcyCEebLP6ZQgSX8wevmWc6emm6LYxLfd8hpqWUgk8L5
http status: 200
content type: application/json
size: 1,353 bytes
sha256: 9f4cd14c9e57fcd6d9e030f01da0a87eeb095aca5d73d68c6b0726d854799d95
elapsed: 481,627 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: 8bbfbf7f-a074-46f2-a195-7689cbcea58d
chain: arbitrum
pinned block: 507,357,741
agents: 1,518
started: 2026-09-21T06:35:16.788950Z
finished: 2026-09-21T22:58:37.474618Z
checker: 0.7.0 · f60139c8802140544532ad9241c5d7a943939769
spec commit: 68fc6765761a10fb26f0692df21c8a6f9d12b1be

Reproduce

cargo run -p sweeper -- arbitrum   # at block 507357741

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