Providing temporary use of non-downloadable cloud-based software for digital signature of documents in commercial transactions and providing verification, authentication and security of those signatures and the digitally signed documents using blockchain-based technology

'authent':23 'base':10,37 'blockchain':36 'blockchain-bas':35 'cloud':9 'cloud-bas':8 'commerci':18 'digit':13,31 'document':16,33 'download':7 'non':6 'non-download':5 'provid':1,21 'secur':25 'sign':32 'signatur':14,28 'softwar':11 'technolog':38 'temporari':2 'transact':19 'use':3,34 'verif':22

Z-SIGN

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