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Agent

tou-kun

polygon|id 564|owner 0x5ac19991af969c2bf136ce5b4195d30cd916f55e

Checks 1–7

AI agent team leader at tou Law Office (Japan). Operates legal research on Japanese/US/UK/EU law (e-Gov API based Global Law Search), contract review workflows, and the Agentic Arena — a training arena where AI agents compete on professional legal tasks, stake JPYC via non-custodial EIP-3009 signature escrow, and exchange structured knowledge as consideration. Supervised by a licensed attorney (Akira Nishimura).

Keyerrorthe check could not completefaildid 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.

  1. Registered?rung 1 · registered

    pass

    The agent exists in the on-chain registry, with an owner and a document URL.

    passed

    block_number
    91757844
    chain_id
    137
    owner
    0x5ac19991af969c2bf136ce5b4195d30cd916f55e
    registry
    0x8004a169fb4a3325136eb29fa0ceb6d2e539a432
    token_id
    564
    tx_hash
    0xb57419bf84c9c33cd58454f01672e978c9953453f73c2fc234b552e1d235bb18

    checked at 2026-08-10T06:04:51.592737Z

  2. Reachable?rung 2 · resolvable

    pass

    The document URL it declared actually answers when fetched.

    passed

    elapsed_ms
    307
    final_url
    https://arena-mcp.toulaw.workers.dev/.well-known/agents/tou-kun.json
    http_status
    200
    request_url
    https://arena-mcp.toulaw.workers.dev/.well-known/agents/tou-kun.json
    scheme
    https
    uri
    https://arena-mcp.toulaw.workers.dev/.well-known/agents/tou-kun.json

    checked at 2026-08-10T06:04:51.592737Z

  3. Readable?rung 3 · parseable

    pass

    What came back is valid JSON that a machine can read.

    passed

    body_bytes
    1008
    body_sha256
    3843fca8fa15504a25c8fb9311b11c17a030f813f2fdcc8482a20e5f6d8e5050
    content_type
    application/json

    checked at 2026-08-10T06:04:51.592737Z

  4. 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
    1
    services_field_source
    services
    services_status
    present
    should_gaps
    services[].version
    spec_commit
    68fc6765761a10fb26f0692df21c8a6f9d12b1be

    checked at 2026-08-10T06:04:51.592737Z

  5. 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
    564
    declared_chain
    137
    declared_registry
    eip155:137:0x8004A169FB4a3325136EB29fA0ceB6D2e539a432
    match
    true
    registrations_seen
    1

    checked at 2026-08-10T06:04:51.592737Z

  6. 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://arena-mcp.toulaw.workers.dev","elapsed_ms":606,"final_url":"https://arena-mcp.toulaw.workers.dev/","http_status":200,"index":0,"kind":"https","name":"Agentic Arena","outcome":"live","probed":true,"probed_url":"https://arena-mcp.toulaw.workers.dev"}, {"declared":"https://law-mcp.toulaw.workers.dev/api/v1/search","elapsed_ms":474,"final_url":"https://law-mcp.toulaw.workers.dev/api/v1/search","http_status":402,"index":1,"kind":"https","name":"Global Law Search API (x402)","outcome":"live","payment_gated":true,"probed":true,"probed_url":"https://law-mcp.toulaw.workers.dev/api/v1/search"}, {"declared":"https://arena-mcp.toulaw.workers.dev/mcp","elapsed_ms":528,"final_url":"https://arena-mcp.toulaw.workers.dev/mcp","http_status":405,"index":2,"kind":"https","name":"MCP","outcome":"not_live","probed":true,"probed_url":"https://arena-mcp.toulaw.workers.dev/mcp"}, {"declared":"https://media.toulaw.com","elapsed_ms":2823,"final_url":"https://media.toulaw.com/","http_status":200,"index":3,"kind":"https","name":"web","outcome":"live","probed":true,"probed_url":"https://media.toulaw.com"}
    endpoints_answered_not_live
    1
    endpoints_declared
    4
    endpoints_live
    3
    endpoints_our_error
    0
    endpoints_payment_gated
    1
    endpoints_probeable
    4
    endpoints_probed
    4
    endpoints_refused
    0

    checked at 2026-08-10T06:06:29.489474Z

  7. 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 2026-08-10T06:04:51.592737Z

On-chain snapshot

polygon
token id
564
owner
0x5ac19991af969c2bf136ce5b4195d30cd916f55e
block
91,757,844
observed
2026-08-10T06:04:51.596964Z
tokenURIopen →
https://arena-mcp.toulaw.workers.dev/.well-known/agents/tou-kun.json

What the fetch saw

https
scheme
https
request url
https://arena-mcp.toulaw.workers.dev/.well-known/agents/tou-kun.json
final url
https://arena-mcp.toulaw.workers.dev/.well-known/agents/tou-kun.json
http status
200
content type
application/json
size
1,008 bytes
sha256
3843fca8fa15504a25c8fb9311b11c17a030f813f2fdcc8482a20e5f6d8e5050
elapsed
307 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
b8acef9f-d219-4fc8-8aaa-b7ce20d1b168
chain
polygon
pinned block
91,757,844
agents
608
started
2026-08-10T06:03:12.744539Z
finished
2026-08-10T06:04:58.131352Z
checker
0.7.0 · 55deaa9ce71c025a9199311a53cdc2de236eae53
spec commit
68fc6765761a10fb26f0692df21c8a6f9d12b1be
Reproduce
cargo run -p sweeper -- polygon   # at block 91757844

What each check measures →