poor man's copyright
(informal) The practice of mailing a sealed, dated copy of one's work to oneself as a proof of copyright ownership, rather than registering the work with a copyright office.
(sociology) Opposition to classism.
(algebra) A variable (usually x, y or z) whose value is to be found. / Any thing, place, or situation about which nothing is known; an unknown fact or piece of information.
plural of eco-region
多くの作家は、作品を封をして日付を入れた写しを自分宛に郵送して著作権の証拠とするという低コストの方法を、原稿の完成時期を記録する手段として利用しています。
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DiQt
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