1,721,459 research outputs found

    Private transactions on Ethereum

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    Private transactions are transactions that are confirmed but are not publicly visible in the mempool, which is a pool of unconfirmed transactions that are broadcast to the network. These transactions can be confirmed through direct channels with miners, such as MEV Boost. To identify private transactions, we use a combination of full nodes and API subscriptions to QuickNode and Infura to collect pending transactions as they enter the mempool. We then compare this data to the on-chain transactions to identify private transactions. Our data collection process is described in more detail at https://mempool.guru. Currently, this dataset includes private transactions from block 15449618 to block 16308189. More data will be uploaded in the future. It's important to note that it is possible, though unlikely, that some private transactions in our dataset may be false positives, meaning that they might have appeared in other mempools but not ours due to mempools not being synchronized. We use multiple nodes to minimize the risk of false positives and recommend cross-checking with other data sources, such as ZeroMEV, to further ensure accuracy.</p

    Going Beyond Counting First Authors in Author Co-citation Analysis

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    The present study examines one of the fundamental aspects of author co-citation analysis (ACA) - the way co-citation counts are defined. Co-citation counting provides the data on which all subsequent statistical analyses and mappings are based, and we compare ACA results based on two different types of co-citation counting - the traditional type that only counts the first one among a cited work's authors on the one hand and a non-traditional type that takes into account the first 5 authors of a cited work on the other hand. Results indicate that the picture produced through this non-traditional author co-citation counting contains more coherent author groups and is therefore considerably clearer. However, this picture represents fewer specialties in the research field being studied than that produced through the traditional first-author co-citation counting when the same number of top-ranked authors is selected and analyzed. Reasons for these effects are discussed

    Variations on the Author

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    “Variations on the Author” discusses two of Eduardo Coutinho’s recent films (Um Dia na Vida, from 2010, and Últimas Conversas, posthumously released in 2015) and their contribution to the general question of documentary authorship. The director’s filmography is characterized by a consistent yet self-effacing form of authorial self-inscription: Coutinho often features as an interviewer that rather than express opinions propels discourses; an interviewer that is good at listening. This mode of self-inscription characterizes him as an author who is not expressive but who is nonetheless markedly present on the screen. In Um Dia na Vida, however, Coutinho is completely absent form the image, while Últimas Conversas, on the contrary, includes a confessional prologue that moves the director from the margins to the center of his films. This article examines the ways in which these works stand out in the filmography of a director who offers new insights into the notion of cinematic authorship
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