Patent ID: 8296212

Claim:
An issuing system for transacting a hardcopy certificate of a newly-issued security or financing instrument, comprising: a server; and a plurality of issuing machines connected to the server via a network, each of the issuing machines including: a receiver for receiving an identification (ID) recording medium provided by a potential purchaser; information retrieving reader for retrieving identification recoded in the received ID recording medium; input device for the potential purchaser to input request for a transaction of a security or financing instrument; transaction processor for processing the requested transaction of the security or financing instrument by retrieving information via a network from a server; a printer for printing out said hardcopy certificate of the security or financing instrument as purchased by the potential purchaser and a cryptographic checksum thereon; a scanner for scanning a hardcopy document inserted by a holder; and a controller for determining whether the hardcopy document was issued as said hardcopy certificate of the security or financing instrument by another one of the issuing machines or an issuing machine linked therewith according to at least a scanned cryptographic checksum, wherein said cryptographic checksum is generated by using a cryptographic algorithm of a keyed-hash function H and information other than said cryptographic checksum to be printed on said hardcopy certificate.