Programmer Bram Cohen designed the protocol in April 2001, and released the first available version on 2 July 2001.[4] On 15 May 2017, BitTorrent, Inc. (later renamed Rainberry, Inc.) released BitTorrent v2 protocol specification.[5][6] libtorrent was updated to support the new version on 6 September 2020.[7]
By convention, the name of a torrent file has the suffix .torrent. Torrent files use the Bencode file format, and contain an "announce" section, which specifies the URL of the tracker, and an "info" section, containing (suggested) names for the files, their lengths, the piece length used, and a SHA-1 hash code for each piece, all of which are used by clients to verify the integrity of the data they receive. Though SHA-1 has shown signs of cryptographic weakness, Bram Cohen did not initially consider the risk big enough for a backward incompatible change to, for example, SHA-3. As of BitTorrent v2 the hash function has been updated to SHA-256.[29]
Episode dated 25 February 2001 720p torrent
24 is an American crime drama television series created by Joel Surnow and Robert Cochran for Fox. The series stars Kiefer Sutherland as counter-terrorist agent Jack Bauer. Each season covers 24 consecutive hours in Bauer's life using the real time method of narration. Multiple interrelated plots are featured in each episode, which often include Bauer's contacts in perilous crisis. The show premiered on November 6, 2001, and spanned 204 episodes over nine seasons, with the series finale broadcast on July 14, 2014. In addition, the television film 24: Redemption aired between seasons six and seven, on November 23, 2008. 24 is a joint production by Imagine Television and 20th Century Fox Television.
The pilot for 24 was pitched to Fox who immediately bought it, saying they felt that the idea for the series was one that would "move the form of television forward".[16] The episode had a $4 million budget with filming in March 2001. The set of CTU was initially done in a Fox Sports office, with the set reproduced once the series was picked up for the season.[17][18] The series was supposed to be filmed in Toronto, but due to the variability of Canadian weather, Los Angeles was chosen as a filming location.[19]
The pilot of the series was well received by critics, and was signed on for an initial thirteen episodes. Production began in July 2001, and the premiere was planned for October 30, but because of the September 11 attacks, delayed until November 6.[20][21][22] After the first three episodes, Fox greenlit the remaining filmed 11 episodes and following Kiefer Sutherland's Golden Globe win, Fox ordered the second half of the season.[23]
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