download torrent from hash The torrent info_hash parameter. How does one calculate the info_hash parameter ? Aka the hash corresponding to the info dictionar?? From official specs: info_hash The 20 byte sha1 hash of the bencoded form of the info value from the metainfo file. Note that this is a substring of the metainfo file. This value will almost certainly have to be escaped. Does this mean simply get the substring from the meta-info file and do a sha-1 hash on the reprezentative bytes?? . because this is how i tried 12 times but without succes meaning I have compared the resulting hash with the one i should end up with..and they differ ..that + tracker response is FAILURE, unknown torrent . or something. How to Add Info Hash to UTorrent. Whatever website you use to download content via uTorrent, the process is usually the same. You click on the magnet link, confirm the download or select the files within the folder, and wait for the data to download to your device. However, you may have a file’s info hash that you can use for downloading, especially on websites that require you to create an account to download files. If you want to know how to add info hash to your torrent software, this article has got you covered. Downloading Torrents via Info Hash. Do you happen to have the info hash belonging to a torrent? If so, you can use this code to download the files without accessing any of the popular websites. You may also stumble upon a file you’d like to download, but you can’t find the magnet link to get it the conventional way. This is where info hash comes in handy. Also, many torrent websites allow you to download files without creating an account. Say you finally find the desired torrent on a site that requires you to register before downloading. But you can’t be bothered to sign up. If that’s the case, you can follow the steps below to download the movie or game using the info hash. Some websites even display this code in the torrent info that you can access before you create an account. Regardless of the way you got the info hash, here’s how to add it to uTorrent and download the desired file: Launch uTorrent on your computer. Find the link icon just above the list of downloaded torrents. It’s next to the plus icon. When you hover the pointer over it, it will say Add Torrent from URL. Click on it. Paste the info hash to the empty field within the pop-up window. Click OK. Your torrent will start downloading. Where to Find the Info Hash. Where you’ll find the info hash depends on the website that you download files from. You might’ve received the info hash from a friend or copied it from a forum discussion. Alternatively, you might’ve found it on a torrent website. For example, if you use Pirate Bay, type in the name of the desired file in the search field. Then select it from the search results. When you open the file, you’ll see more details about it, as well as the info hash. Bear in mind that you can download from Pirate Bay without being registered on the website. You can also see the info hash after you start downloading the file. In case you ever need to provide someone with this code, you can find it in uTorrent instead of looking it up all over again. Here’s how: Open uTorrent on your computer. Select the desired torrent from the list of downloaded files. Below this list, choose Info from the options bar. Scroll to the bottom, and you’ll see Hash, among other details about the torrent. Right-click on the info hash to copy it. Generating a Magnet Link. Another way is to use the info hash to generate a magnet link to download the torrent. Here’s how you can do it: Find an online magnet link generator, such as https://hardrisk.github.io/magnet/. Paste the info hash in the corresponding field. Give your torrent a name. This step is optional. Click on Generate. Click on Magnet Link or copy the generated link and go to uTorrent. Click on Add Torrent from URL and paste the link in the corresponding field. Click OK to start downloading. Magnet Links and Info Hash. The info hash contains all the relevant torrent info and content: its name, and other data necessary to download it. When you have a torrent file’s info hash, you don’t need anything else. If your info hash isn’t working, try converting it into a magnet link and adding it to uTorrent to finish the download. If that doesn’t help either, simply try finding another website to download the file from, or look for another info hash that’s working. How do you typically download files? Have you ever used info hash? Let us know in the comments section below. What exactly is the info_Hash in a torrent file. I am reading lately a lot about hash from torrents, and magnetic links, etc. But there is a question I don't understand. hash of a file and the infohash of a torrent. Is the infohash = hash of the file ? If yes what if the torrent describes 6 Files to download? If no what does it stand for? 3 Answers 3. So I finally figured it out. The “infohash” is the SHA1 Hash over the part of a torrent file that includes: ITEM: length(size) and path (path with filename) Name: The name to search for Piece length: The length(size) of a single piece Pieces: SHA1 Hash of EVERY piece of this torrent Private: flag for restricted access. To show this a little more I took a random torrent file and used the “BEncode Editor” from Ultima to make it more clearly to me. As you can see the the red box marked the information part of the torrent file. The torrent file includes not the Hash of the items, but the hashes of every piece. For item1 with: 1069496548 and item2 with: 223 It is together: 1069496771 With a piece size of: 524288 There are 2040 pieces. (1069496771/524288=2039.9032 approximately) The pieces section includes 40800 byte of data what are 81600 + 2 chars in the file. the +2 because 0x marks that this is hexadecimal. A SHA1 hash has 40 0x chars or 20 Byte of data what are 2040 SHA1 hashes. I am sorry that this information is about a torrent that leads to a illegal movie, but i wanted to use a torrent that realy exists. I wanted to add another example, slightly more concrete. We start with one of the smallest .torrent files i have: If we decode the BEncoding: Or, in pseudo-json: InfoHash is hash of the info. The InfoHash is the SHA-1 hash of the info dictionary contents. We want to take the SHA-1 hash of value of the info dictionary key: We run all these bytes together: And then take the SHA-1 hash to generate a 160-bit (20-byte) digest: Which is the right answer: Here's how to pull the pertinent segment of a *.torrent datum for a bittorrent “info hash”. I made this for an example. The content of the “info” key is between (inclusive) offsets 0x4D and 0xA7. So… You should see this: Here is the xxd output, in–lieu of shasum , for more elucidation: You can refer to The BitTorrent Protocol Specification for an explanation, albeit a terse and rather grammatically inelegant one, as to their nomenclature and why the final 0x65 needs be excluded. Concisely: the entire datum is encased in a pair of US-ASCII ‘d’ and ‘e’; the content of the “info” key, or field, is similarly so encased. You want everything between the first 0x64 — ‘d’, — which succeeds the US-ASCII string 4:info , and the terminal 0x65 — ‘e’, — which is paired with the aforementioned 0x64. Torrent Hash Extractor. Extractor of SHA-1 hashes from torrents. As its name suggests, Torrent Hash Extractor is designed to help you calculate the SHA-1 hash code for TORRENT files. Installation is not required: just open the archive and run the executable file, without worrying that your registry might be affected in any way. The application is designed with simplicity in mind and the interface makes no difference. It only comprises a few buttons and a pane where you can view the files and their hash codes. You can add the TORRENT files that you want to process, but the application can also open a whole directory and automatically identify the torrents, so you don't have to search for them manually. Once the desired files are in the list, just press the 'Start' button and let the program do the rest. The generated code can be easily copied to your clipboard or saved to a text file in your computer, for later reference. Only the TORRENT file format is supported, so any other file type that you add to the list is not processed and the program displays the 'Not a TORRENT file' message. You can delete the file list and start over using the 'Clear' button. That's about all that this application does. It's only function is to determine the hash code of TORRENT files, thus helping you determine their integrity and identify if the file content is changed. It only comes with support for this type of file and can only calculate the SHA-1 hash. Torrent Hash Extractor is very easy to use, but the program could benefit from some additional features that other similar applications include, such as support for more algorithm types and file formats. Torrent File Hash Checker. Verify the integrity of any two torrents by comparing their checksums, in order to find out of any of the two files is corrupt or incompletely downloaded. Torrent File Hash Checker is a simple-to-use application designed to verify the integrity of torrents by comparing them with the downloaded files. If the files are not identical, this could mean that one of them might be incomplete or corrupt. Check the integrity of torrent files. When it comes to the interface, Torrent File Hash Checker opts for a standard window with a neatly structured layout, which reveals all settings put at your disposal. All you have to do is indicate the torrent file and data path, as well as click a button to compare the two items. The application doesn't show the checksum of the items. Instead, it lets you know whether or not the two files are identical. If they don't match, the program shows an error. There are no other notable options available here. Unfortunately, it doesn't support batch processing, which means that you cannot check the integrity of more than one file at a time. No installation necessary, besides .NET Framework. The program's not packed in a setup kit. Instead, you can save the downloaded files anywhere on the disk or copy them to a USB flash drive, in order to effortlessly run Torrent File Hash Checker on any PC. It doesn't change the system registry configuration or create files on the disk without asking for permission. In order to uninstall it, you simply have to delete the two files. Just keep in mind that you must have .NET Framework installed. Evaluation and conclusion. We haven't experienced any stability issues in our tests, thanks to the fact that the software program didn't freeze, crash or prompt error messages. Unsurprisingly, it left a small footprint on system resources usage, thanks to the fact that it needed a low amount of CPU and RAM to work properly. Although it doesn't come bundled with a particularly rich set of features, Torrent File Hash Checker offers a simple and straightforward solution for finding out if any two torrent files are identical or different by comparing their hash.