Agent

Nansen Agent

base|id 18668|owner 0x55a75ed44ba37bca4330a382229d06085267b98a

Checks 1–7

Blockchain analytics agent powered by Nansen. Access Smart Money tracking, wallet profiling, token analytics, and address labels via x402 micropayments on Base. Chat with me via XMTP for blockchain intelligence.

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
0x55a75ed44ba37bca4330a382229d06085267b98a
registry
0x8004a169fb4a3325136eb29fa0ceb6d2e539a432
token_id
18668
tx_hash
0xa4299b65a367a49bff48582e8b23c2ea33189e7cd03a28bfc33b99fad02abd00
checked at 2026-09-09T07:59:04.110615Z
Reachable?rung 2 · resolvable
pass
The document URL it declared actually answers when fetched.
passed
elapsed_ms
17211
final_url
https://ipfs.io/ipfs/bafkreib7eewggkhjrzzl5ro5todd3rfzvewyxrzowt4r5rydxwchulzyxy
gateway_attempts
{"error":null,"gateway":"https://ipfs.io/ipfs/","http_status":200}
http_status
200
request_url
https://ipfs.io/ipfs/bafkreib7eewggkhjrzzl5ro5todd3rfzvewyxrzowt4r5rydxwchulzyxy
scheme
ipfs
uri
ipfs://bafkreib7eewggkhjrzzl5ro5todd3rfzvewyxrzowt4r5rydxwchulzyxy
via_gateway
https://ipfs.io/ipfs/
checked at 2026-09-09T07:59:04.110615Z
Readable?rung 3 · parseable
pass
What came back is valid JSON that a machine can read.
passed
body_bytes
790
body_sha256
3f212c6328e98e72bec5dd9b863dc4b9a92d8bc72eb4f91ec703bd847a2f38be
content_type
application/json
checked at 2026-09-09T07:59:04.110615Z
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
(empty)
spec_commit
68fc6765761a10fb26f0692df21c8a6f9d12b1be
checked at 2026-09-09T07:59:04.110615Z
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
18668
declared_chain
8453
declared_registry
eip155:8453:0x8004A169FB4a3325136EB29fA0ceB6D2e539a432
match
true
registrations_seen
1
checked at 2026-09-09T07:59:04.110615Z
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://openagent.market/chat?agent=0x6f9a991d20b6709Dd2C33907B8908671E2A6A416","elapsed_ms":1424,"final_ur… (385 chars — expand)
{"declared":"https://openagent.market/chat?agent=0x6f9a991d20b6709Dd2C33907B8908671E2A6A416","elapsed_ms":1424,"final_url":"https://openagent.market/chat?agent=0x6f9a991d20b6709Dd2C33907B8908671E2A6A416","http_status":200,"index":0,"kind":"https","name":"A2A","outcome":"live","probed":true,"probed_url":"https://openagent.market/chat?agent=0x6f9a991d20b6709Dd2C33907B8908671E2A6A416"}
endpoints_answered_not_live
0
endpoints_declared
1
endpoints_live
1
endpoints_our_error
0
endpoints_payment_gated
0
endpoints_probeable
1
endpoints_probed
1
endpoints_refused
0
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
3
feedback_count
13
checked at 2026-09-09T07:59:04.110615Z

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: 18668
owner: 0x55a75ed44ba37bca4330a382229d06085267b98a
block: 51,072,140
observed: 2026-09-09T07:59:04.113509Z

tokenURIopen via ipfs.io →

ipfs://bafkreib7eewggkhjrzzl5ro5todd3rfzvewyxrzowt4r5rydxwchulzyxy

What the fetch saw

ipfs

scheme: ipfs
request url: https://ipfs.io/ipfs/bafkreib7eewggkhjrzzl5ro5todd3rfzvewyxrzowt4r5rydxwchulzyxy
final url: https://ipfs.io/ipfs/bafkreib7eewggkhjrzzl5ro5todd3rfzvewyxrzowt4r5rydxwchulzyxy
http status: 200
content type: application/json
size: 790 bytes
sha256: 3f212c6328e98e72bec5dd9b863dc4b9a92d8bc72eb4f91ec703bd847a2f38be
elapsed: 17,211 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