Initial checkin

README.md

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+# ctfetch
+
+Fetch and dump leaf entries from Certificate Transparency logs.
+
+## Install
+
+```bash
+go install
+```
+
+## Usage
+
+```bash
+ctfetch [--dumpall] <log-url> <leaf-index>
+```
+
+### Examples
+
+Dump a specific entry:
+```bash
+ctfetch https://halloumi2026h1.mon.ct.ipng.ch 629794635
+```
+
+Dump all entries in the tile:
+```bash
+ctfetch --dumpall https://halloumi2026h1.mon.ct.ipng.ch 629794635
+```
+
+## Options
+
+- `--dumpall`: Dump all entries in the tile instead of just the specified leaf