Engineering drawing drawing on A3 may be enlarged to A2 or reduced to A4. The U.S. customary "A-size" corresponds to "letter" size, and "B-size" corresponds to "ledger" or "tabloid" size. There were also once British paper sizes, which went by names rather than alphanumeric designations. American Society of Mechanical Engineers (ASME) ANSI/ASME Y14.1, Y14.2, Y14.3, and Y14.5 are commonly referenced standards in the U.S. Technical lettering is the process of forming letters, numerals, and other characters in technical drawing. It is used to describe, or provide detailed specifications for an object. With the goals of legibility and uniformity, styles are standardized and
Ledger (journal) timestamped into the bitcoin blockchain. Authors are also asked to include a personal bitcoin address in the first page of their papers. Ledger (journal) Ledger is the first peer-reviewed academic journal dedicated to cryptocurrency and blockchain technology research. The journal covers aspects of mathematics, computer science, engineering, law, economics and philosophy that relates to cryptocurrencies such as bitcoin. "Ledger" is an open access journal published by the University Library System (ULS) of the University of Pittsburgh and is cosponsored by the University of Pittsburgh Press. The journal expects to release full-publications twice a year and additional articles throughout. Individuals such