HOW MUCH YOU NEED TO EXPECT YOU'LL PAY FOR A GOOD COPYRIGHT

?ок?а??й?е ?во? знанн? й о??им?й?е о??анн? ?н?о?ма???Blockchains are special in that, after a transaction has actually been recorded and verified, it may possibly?�t be altered. The ledger only permits a single-way data modification.?лок?ейн ?оби?? благод?йн???? б?л?? п?озо?о?, е?ек?ивно? ?