00793nam    00253   45  001002800000003005200028010002200080021001800102100004100120101000800161102000700169105001800176106000600194200007200200205001000272210002600282215002300308675002400331675002800355675002500383700001800408801001600426856009700442PT.BNPORTUGAL.BNP-L.2050392http://id.bnportugal.gov.pt/bib/bibnacional/2050392  a978-989-760-227-6  aPTb463668/19  a20200713d2020    m  y0pory01030103ba0 apor  aPT  aa   z   000yy  ar1 aTecnologia blockchain e criptomoedase<o >que é isto?fLuís Antunes  a1ª ed 9aLisboacPlátanod2020  a144 p.cil.d21 cm  a004.6(035)vBNzpor  a004.73.05(035)vBNzpor  a336.74(035)vBNzpor 1aAntunesbLuís 0aPTbBNgRPC41uhttp://rnod.bnportugal.gov.pt/ImagesBN/winlibimg.aspx?skey=&doc=2050392&img=141859&save=true