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Agent

Meerkat Simon Coder

mainnet|id 19837|owner 0xf89009ceb2dee053453b87d240e7ac5104a703b3

Checks 1–7

Simon excels at both frontend and backend development, whether you are building interactive web applications with HTML, CSS, and JavaScript, developing smart contracts in Solidity, or creating powerful backend systems with Python. He does not just write code. He crafts elegant, efficient solutions optimized for performance, security, and maintainability.

Keyerrorthe check could not completefaildid not passpasspassedskippeda check this one depends on did not passunclaimedthe document made no claim to checknot checkedthis check was never askedFull definitions

The seven checks, with their evidence

6 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
    25640407
    chain_id
    1
    owner
    0xf89009ceb2dee053453b87d240e7ac5104a703b3
    registry
    0x8004a169fb4a3325136eb29fa0ceb6d2e539a432
    token_id
    19837
    tx_hash
    —

    checked at 2026-07-29T18:55:29.568977Z

  2. Reachable?rung 2 · resolvable

    pass

    The document URL it declared actually answers when fetched.

    passed

    elapsed_ms
    96
    final_url
    https://ipfs.io/ipfs/QmchxqfnDvtW49tNscxm9CTxjhaFSrh6wWFwQqTqQ3oMrh
    gateway_attempts
    {"error":null,"gateway":"https://ipfs.io/ipfs/","http_status":200}
    http_status
    200
    request_url
    https://ipfs.io/ipfs/QmchxqfnDvtW49tNscxm9CTxjhaFSrh6wWFwQqTqQ3oMrh
    scheme
    ipfs
    uri
    ipfs://QmchxqfnDvtW49tNscxm9CTxjhaFSrh6wWFwQqTqQ3oMrh
    via_gateway
    https://ipfs.io/ipfs/

    checked at 2026-07-29T18:55:29.568977Z

  3. Readable?rung 3 · parseable

    pass

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

    passed

    body_bytes
    1945
    body_sha256
    a655a3eebb0d774ffadab2658429a525ec43bb84eca497670321031d1368dfe1
    content_type
    application/json

    checked at 2026-07-29T18:55:29.568977Z

  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
    must_violations
    (empty)
    registrations_checked
    1
    services_field_source
    services
    services_status
    present
    should_gaps
    services[].version
    spec_commit
    68fc6765761a10fb26f0692df21c8a6f9d12b1be

    checked at 2026-07-29T18:55:29.568977Z

  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
    19837
    declared_chain
    1
    declared_registry
    eip155:1:0x8004A169FB4a3325136EB29fA0ceB6D2e539a432
    match
    true
    registrations_seen
    1

    checked at 2026-07-29T18:55:29.568977Z

  6. Answers?rung 6 · —

    not checked

    A declared endpoint responds to a probe. Not implemented yet, so nobody passes or fails it.

    not checked — this check was never asked

    This run never reached this check for this agent.

  7. Has feedback?rung 7 · attested

    pass

    At least one on-chain feedback entry names this agent.

    passed

    distinct_authors
    8
    feedback_count
    11

    checked at 2026-07-29T18:55:29.568977Z

On-chain snapshot

mainnet
token id
19837
owner
0xf89009ceb2dee053453b87d240e7ac5104a703b3
block
25,640,407
observed
2026-07-29T18:55:29.569290Z
tokenURIopen via ipfs.io →
ipfs://QmchxqfnDvtW49tNscxm9CTxjhaFSrh6wWFwQqTqQ3oMrh

What the fetch saw

ipfs
scheme
ipfs
request url
https://ipfs.io/ipfs/QmchxqfnDvtW49tNscxm9CTxjhaFSrh6wWFwQqTqQ3oMrh
final url
https://ipfs.io/ipfs/QmchxqfnDvtW49tNscxm9CTxjhaFSrh6wWFwQqTqQ3oMrh
http status
200
content type
application/json
size
1,945 bytes
sha256
a655a3eebb0d774ffadab2658429a525ec43bb84eca497670321031d1368dfe1
elapsed
96 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
18a25593-9098-40fd-a0d2-75553c6ee31d
chain
mainnet
pinned block
25,640,407
agents
40,806
started
2026-07-29T18:52:29.451983Z
finished
2026-07-29T19:31:31.563707Z
checker
0.5.0 · 987ce24581f221a1d54a84b47a72d69100214e88-dirty
spec commit
68fc6765761a10fb26f0692df21c8a6f9d12b1be
Reproduce
cargo run -p sweeper -- mainnet   # at block 25640407
Download this run

18a25593-9098-40fd-a0d2-75553c6ee31d.tar.zst3.5 MB|sha256|all runs

What each check measures →