O ASTR 1350-850 · UNOMAHA SUMMER 2026 Astronomy on the Web
Course PDF Hunter
📖 Textbook 📑 Reader 🗺 Mind Map ⌂ Course home

★ Bennett 9e · The Cosmic Perspective

Required text for this course. 163 MB · ISBN 9780135794982 · MD5 44c8e20b6652f3806616f7e11dfe5253

Hunt a PDF

Paste an Anna's Archive URL, MD5 hash, or IPFS CID. Generates a ranked mirror chain.

Accepts: MD5 (32 hex), annas-archive.gl/md5/… URL, IPFS CID (Qm… or bafy…). Enter to hunt · Ctrl+L to focus this input.

Five free routes (+ one paid)

Ranked by real-world speed

1. Libgen.li mirror

Click GET on the libgen.li page — gives you a direct CDN link. No throttle, often 5+ MB/s. Best free route for most files.

~5–20 MB/s · no login
🌐

2. IPFS gateway

Anna's Archive lists IPFS CIDs. Public gateways (dweb.link, w3s.link, 4everland) serve them directly. Best second-bet when libgen is sluggish.

~1–10 MB/s · varies by gateway
🖥

3. Local IPFS node

Run ipfs daemon (or IPFS Desktop). ipfs get <CID> bypasses every gateway rate-limit. Slowest startup, fastest steady-state.

unlimited · install once
🐢

4. Anna's slow servers

"Slow partner" download — free but capped at ~20 KB/s with hourly cooldown. Only as last resort, or for <5 MB files.

~20 KB/s · cooldown gate
📚

5. Z-Library (Tor)

z-library.sk via Tor browser. Daily download limit on free account; no throttle on speed.

~1–5 MB/s · 5/day limit
💰

(Donor) Fast servers

Anna's Archive accepts a small donation for unrate-limited fast partner servers. Not free, but bookmark this if your time is worth more than $5/mo.

unlimited · ~$5/mo

Workflow

Five steps to a local PDF

Get the MD5

From an Anna's Archive page like annas-archive.gl/md5/<hash>. Copy the 32-character hex string and paste above.

Hit "Hunt"

You get a ranked mirror list. Top mirror in green = fast partner server (libgen.li). Yellow = IPFS gateway. Red = throttled fallback.

Click the top mirror

It opens in a new tab. Libgen pages need one extra click on the GET button — that lands the direct download.

Save to _books/

Drop the file at unomaha-fall2026/_books/bennett_cosmic.pdf (site root). Reader's fetch("../_books/…") hits that path automatically; annotations restore via SHA-256 hash.

Open the Reader

If the file's in _books/ the textbook page status pill turns green. Otherwise the file picker in Reader will accept it manually.

Recent hunts

localStorage — never leaves this browser

Why the libgen.li GET button isn't a direct link

Each "GET" page generates a one-time key (?md5=…&key=XXXXXXXX) and the file URL behind that key expires in minutes. Hunter fetches the ads.php page, scrapes the current key, and gives you a fresh direct link. If a link 404s after sitting too long, just re-hunt.