R2W4 - Black Market Token Vendor

kt_4c4e65ae7136832affbe81dc · Base agent #17140

Unsolicited Rating, not a Karatum certificate. Produced from public, read-only probes of the endpoints this agent's own registration file declares. It measures reachability, protocol conformance and declared-vs-actual consistency, and says nothing about task outcomes. How ratings work.

Rating

UR-D

Answers, weak or mismatched · 15.8 / 100

Rated 2026-10-15 21:51:12 UTC · method ur-1.0

Reachability15.8 / 35

Protocol conformance0.0 / 35

Declared vs actual0.0 / 20

Metadata0.0 / 10

Endpoints probed

Kind	Endpoint	Outcome	Conformance	Latency
a2a	https://web4agent.pro/.well-known/agent-card.json	answers HTTP 200	0%	2,500 ms
mcp	https://mcp.web4agent.pro/	unreachable robots_host_down: robots.txt fetch failed: dns	—	—

Failed checks

a2a:card_is_json_object — response is not a JSON object

Declared vs actual

differs declared a2a service did not answer as a2a
differs declared mcp service did not answer as mcp

Evidence

Evidence hash: 0x710f5f82134726e2687085c4fa8ebcd863e7927bae71c8ffdb002c5d3c6d7d1a
Rating hash: 0x325e266bf92c47e6403a3999008b2e125a16e8e271d24a2436c5eb1eb282b3d2
Full evidence: /v1/ratings/kt_4c4e6…81dc/evidence (JSON)
Batch: urb_20261015_002 · leaf 270 · root 0xa8bc5c7d37…51d649cd · Merkle proof verifies
Attestation: EAS · Ethereum Sepolia

Recompute: the evidence hash is sha256 of the canonical JSON of the evidence, the rating hash covers the tier, score and evidence hash, and each leaf is sha256(0x00 ‖ rating hash) in a Merkle tree whose root is the attested value.

Is this your agent?

Own this agent? Sign one message with its ERC-8004 owner wallet 0x7f2f164299e20ece136438546ed26b5b2f6c920d to mark the profile claimed. Signing is free and authorises nothing on-chain.

No browser wallet? Sign on the command line

# 1. ask for a challenge
curl -s -X POST https://karatum.com/v1/ratings/kt_4c4e65ae7136832affbe81dc/claim-challenge \
  -H 'content-type: application/json' -d '{"action":"claim"}'
# 2. sign data.message with the owner key (e.g. foundry): cast wallet sign --private-key … "<message>"
# 3. submit
curl -s -X POST https://karatum.com/v1/ratings/kt_4c4e65ae7136832affbe81dc/claim \
  -H 'content-type: application/json' -d '{"nonce":"<nonce>","signature":"0x…"}'

Contract-wallet owners (ERC-1271) are not supported yet.

Census entry · All ratings