Show HN: Subth.ink – 写点什么，看看有多少人写了同样的内容

Show HN: Subth.ink – write something and see how many others wrote the same

subth.ink 分享你的想法，匿名进行。看看是否有人与你想法相同。输入你的想法 0 / 256 提交如何运作？你的文本不会被存储，而是存储了它的加盐 SHA256 哈希值。一个未加盐的 MD5 哈希值也被存储，但不会在这里显示。它（MD5 哈希值）未来可能会被发布，当某个想法的计数超过某个阈值时（待定）。这可能会使恢复某些流行的简短想法成为可能。CLI 访问 echo "hello world" | curl -d @- https://subth.ink 热门想法加载中... API 模式 POST /api/thoughts 请求: {"contents": "hello world"} 响应: {"contents": "hello world", "count": 3, "hashed": "a591a6d4...", "createdAt": 1737000000, "updatedAt": 1737000000} GET /api/thoughts/top 响应: {"top": [{"hashed": "a591a6d4...", "count": 3}, ...]} subth.ink | 2026

## Subth.ink: A Fun Haskell Project & Discussion on Thought Similarity A developer shared **Subth.ink**, a small web application built with Haskell (Scotty, SQLite, Redis, Caddy) that checks how many other users have typed the exact same text. The project served as a learning experience for Haskell web development, which the creator found challenging due to its multiple string types and the need to understand monad transformers. The post sparked a lively discussion. Users tested the site with common phrases like "hello world" and humorous inputs, discovering varying degrees of shared thoughts. Concerns were raised about potential ranking manipulation and the limitations of exact-match hashing – slight variations prevent recognition of similar ideas. Suggestions included using LM embeddings for semantic similarity and exploring decentralized approaches like the Scuttlebutt protocol. One user even shared a related project, **Nanotimestamps**, offering a cryptocurrency-based solution for permanently timestamping text, potentially enabling a decentralized, anonymous link shortener built on top of WallofText.com.

Share your thoughts anonymously. See if anyone else thinks the same thing.

<button id="submitBtn" onclick="submitThought()" aria-label="Submit your thought">Submit</button>

<hr/>
    <h3>How does it work?</h3>
    <p>
      Your text is not stored, but rather a salted SHA256 hash of it is.<br/>An unsalted MD5 hash is also stored, but not displayed here.<br/>It (the MD5 hash) might be published in the future when a thought's count passes a certain threshold (TBD). This might
      make it possible to recover certain short thoughts that were popular.
    </p>

<hr/>

<h3>CLI Access</h3>
    <code class="curl">
      echo "hello world" | curl -d @- https://subth.ink
    </code>

<hr/>
    <h3 id="topThoughtsHeading">Top Thoughts</h3>
    <p>Loading...</p>

<hr/>
    <h3>API Schema</h3>
    <div class="api-schema" readability="16">
      <p>POST /api/thoughts</p>
      <pre>Request:  {"contents": "hello world"}
Response: {"contents": "hello world", "count": 3, "hashed": "a591a6d4...", "createdAt": 1737000000, "updatedAt": 1737000000}</pre>

<p>GET /api/thoughts/top</p>
      <pre>Response: {"top": [{"hashed": "a591a6d4...", "count": 3}, ...]}</pre>
    </div>
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