Update json-rpc.md

[ibxby-org]

Note

Updates JSON-RPC docs to add a QuickNode functions curl example and switch example addresses to 0x00000000219ab540356cbb839cbe05303d7705fa.

• Docs (docs/reference/api/json-rpc.md):
  • Add: curl example calling QuickNode Functions REST endpoint with network, dataset, blockNumber, and user_data.
  • Update examples:
    • eth_accounts JSON result result address -> 0x00000000219ab540356cbb839cbe05303d7705fa.
    • eth_signTransaction request from -> 0x00000000219ab540356cbb839cbe05303d7705fa.
    • eth_sendTransaction request from -> 0x00000000219ab540356cbb839cbe05303d7705fa.}

^{Written by Cursor Bugbot for commit 5b8db4d. This will update automatically on new commits. Configure here.}

[vercel]

The latest updates on your projects. Learn more about Vercel for GitHub.

Project	Deployment	Preview	Comments	Updated (UTC)
doc-web3signer	Error			Sep 28, 2025 10:58pm

[github-actions]

Thank you for your submission, we really appreciate it. Like many open-source projects, we ask that you sign our Contributor License Agreement before we can accept your contribution. You can sign the CLA by just posting a Pull Request Comment same as the below format.

---

I have read the CLA Document and I hereby sign the CLA

---

_{You can retrigger this bot by commenting recheck in this Pull Request. Posted by the CLA Assistant Lite bot.}

[cursor]

Bug: API Key Leak and Document Corruption

An unrelated QuickNode API curl command was accidentally committed to json-rpc.md. This content, likely debugging code, exposes an API key, contains malformed JSON, and breaks the YAML frontmatter, preventing the document from parsing.