Agent

korsun

billions|id 16148|owner 0x4ee1f061f38735511996ac87c21ad527fc518e9a

Checks 1–7

Korsun Agent is a practical coordination agent by Kolyan. It helps turn supplied notes into short working summaries, checklists, gap checks, and handoff notes for A2A workflows.

Keyfaildid not passpasspassedskippeda 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
6813672
chain_id
45056
owner
0x4ee1f061f38735511996ac87c21ad527fc518e9a
registry
0x8004a169fb4a3325136eb29fa0ceb6d2e539a432
token_id
16148
tx_hash
0xc4603961763ebc6a51d6d409be97e47f300b672388846f207737d730f89c66a8
checked at 2026-08-17T09:58:26.480407Z
Reachable?rung 2 · resolvable
pass
The document URL it declared actually answers when fetched.
passed
bytes
1632
data_uri_variant
base64
inline
true
scheme
data
uri
data:application/json;base64,ewogICJ0eXBlIjogImh0dHBzOi8vZWlwcy5ldGhlcmV1bS5vcmcvRUlQUy9laXAtODAwNCNyZWdpc3RyYXRpb24tdjE… (2,205 chars — expand)
data:application/json;base64,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
checked at 2026-08-17T09:58:26.480407Z
Readable?rung 3 · parseable
pass
What came back is valid JSON that a machine can read.
passed
body_bytes
1632
body_sha256
4bfdb907fbbb8a632b98ddc20ddb5c041df48dc9a726faba828e07ef0800361e
content_type
—
checked at 2026-08-17T09:58:26.480407Z
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
image, registrations
spec_commit
68fc6765761a10fb26f0692df21c8a6f9d12b1be
checked at 2026-08-17T09:58:26.480407Z
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 2026-08-17T09:58:26.480407Z
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://korsun-agent.vercel.app/.well-known/agent-card.json","elapsed_ms":643,"final_url":"https://korsun-a… (635 chars — expand)
{"declared":"https://korsun-agent.vercel.app/.well-known/agent-card.json","elapsed_ms":643,"final_url":"https://korsun-agent.vercel.app/.well-known/agent-card.json","http_status":200,"index":0,"kind":"https","name":"A2A","outcome":"live","probed":true,"probed_url":"https://korsun-agent.vercel.app/.well-known/agent-card.json"}, {"declared":"https://korsun-agent.vercel.app/.well-known/mcp.json","elapsed_ms":424,"final_url":"https://korsun-agent.vercel.app/.well-known/mcp.json","http_status":200,"index":1,"kind":"https","name":"MCP","outcome":"live","probed":true,"probed_url":"https://korsun-agent.vercel.app/.well-known/mcp.json"}
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 2026-08-17T10:14:16.160895Z
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 2026-08-17T09:58:26.480407Z

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

billions

token id: 16148
owner: 0x4ee1f061f38735511996ac87c21ad527fc518e9a
block: 6,813,672
observed: 2026-08-17T09:58:26.483067Z

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: 1,632 bytes
sha256: 4bfdb907fbbb8a632b98ddc20ddb5c041df48dc9a726faba828e07ef0800361e
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: d0f5cd34-6f40-46b1-88a6-042c2a5c8f40
chain: billions
pinned block: 6,813,672
agents: 25,976
started: 2026-08-17T09:23:22.142865Z
finished: 2026-08-17T10:14:01.923517Z
checker: 0.7.0 · 55deaa9ce71c025a9199311a53cdc2de236eae53
spec commit: 68fc6765761a10fb26f0692df21c8a6f9d12b1be

Reproduce

cargo run -p sweeper -- billions   # at block 6813672

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