feat: add validator 187 on mainnet

[Hazzzzzzzzze]

No description provided.

[greptile-apps]

Greptile Summary

This PR adds a new mainnet validator entry for Kiln (validator id 187) by submitting a JSON metadata file. The file is mostly well-formed, but it is missing the required x field, which will cause the repository's CI schema validation script (scripts/validate.py) to fail and block merging.

The x (Twitter/X profile URL) field is defined in the example schema and is enforced by the check_schema() function in the validation script — its absence will produce ❌ Missing field: 'x' and a non-zero exit code. All other fields (id, name, secp, bls, website, description, logo) are present and correctly typed, and the filename correctly matches the secp key value as required.

Confidence Score: 2/5

• Not safe to merge — the missing x field will cause CI validation to fail.
• The file structure is otherwise correct, but the missing required x field is a hard blocker: the validation script's check_schema() function compares against the example schema and exits with a non-zero code when any field is absent, so the GitHub Actions check will fail and prevent merging.
• mainnet/0389f4d29ac3ddbd010f2ba6874c29695ec187ce32d9f8941ecf1a01642cadaf52.json — Missing required x field

Flowchart

%%{init: {'theme': 'neutral'}}%%
flowchart TD
    A[PR: Add validator JSON file] --> B[CI: scripts/validate.py]
    B --> C{JSON loadable?}
    C -- No --> FAIL1[❌ Invalid JSON]
    C -- Yes --> D{check_schema\nAll 8 fields present?\nid, name, secp, bls,\nwebsite, description,\nlogo, x}
    D -- Missing 'x' field --> FAIL2[❌ Schema check failed\nMissing field: 'x']
    D -- Pass --> E{name non-empty?}
    E -- Fail --> FAIL3[❌ Invalid name]
    E -- Pass --> F{Logo URL valid\nHTTPS + returns image?}
    F -- Fail --> FAIL4[❌ Logo check failed]
    F -- Pass --> G{On-chain SECP\n& BLS match?}
    G -- Mismatch --> FAIL5[❌ Key mismatch]
    G -- Match --> H{Filename == secp.json?}
    H -- Mismatch --> FAIL6[❌ Filename mismatch]
    H -- Match --> SUCCESS[🎉 Validation successful]

    style FAIL2 fill:#ff4444,color:#fff
    style FAIL1 fill:#ff8888,color:#fff
    style FAIL3 fill:#ff8888,color:#fff
    style FAIL4 fill:#ff8888,color:#fff
    style FAIL5 fill:#ff8888,color:#fff
    style FAIL6 fill:#ff8888,color:#fff
    style SUCCESS fill:#44bb44,color:#fff
    style D fill:#ffcccc

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_{Last reviewed commit: 6de6b02}