Abstract: Object to be solved is to achieve novel information management. In order to solve the above circumstances, the present invention provides an information management system including: a blockchain stored in first and second nodes, in which the first or second node includes an authenticating means that executes an authentication process on a basis of feature data, the first node includes a first signing means that generates a first transaction signature and adds the first transaction signature to an unfinalized block in the blockchain, the second node includes a second signing means that generates a second transaction signature and adds the second transaction signature to the unfinalized block on a basis of a result of the authentication process and the first transaction signature, and the first node includes a chain updating means that hashes the unfinalized block and generates a block on a basis of the second transaction signature.

Abstract: Object to be solved is to achieve novel information management. In order to solve the above circumstances, the present invention provides an information management system including: a blockchain stored in first and second nodes, in which the first or second node includes an authenticating means that executes an authentication process on a basis of feature data, the first node includes a first signing means that generates a first transaction signature and adds the first transaction signature to an unfinalized block in the blockchain, the second node includes a second signing means that generates a second transaction signature and adds the second transaction signature to the unfinalized block on a basis of a result of the authentication process and the first transaction signature, and the first node includes a chain updating means that hashes the unfinalized block and generates a block on a basis of the second transaction signature.

Abstract: To implement an electronic ticket management system having tamper-resistance and promptness.

Abstract: A modification method of functional group on the surface of a pressure-sensitive adhesive by fixing a functional group to the surface of the pressure-sensitive adhesive by an interfacial contact reaction between the pressure-sensitive adhesive phase and the phase containing a functional group-containing compound.By the modification method, a functional group effective for the improvement and control of an adhesive property can stably be introduced at high density to the surface of the pressure-sensitive adhesive.

Abstract: This invention relates to a conducting organic polymer formed by doping an organic polymer with a protonic acid having a dissociation constant value pKa of less than 4.8, wherein the organic polymer has, as the main repeating unit, a compound represented by the general formula: ##STR1## wherein, m and n, respectively, show the molar fraction of the quinonediimine structural unit and phenylenediamine structural unit in the repeating unit, and 0<m<1, 0<n<1, and m+n=1; and the organic polymer is soluble in an organic solvent in the undoped state, and has an intrinsic viscosity ?.eta.! of more than 0.4 dl/g measured in N-methyl-2-pyrrolidone at 30.degree. C. This invention also relates to a film formed of the conducting organic polymer and a conducting organic polymer composition.

Abstract: This invention relates to an organic polymer having, as the main repeating unit, the compound represented by the general formula: ##STR1## (wherein, m and n respectively show the molar fraction of quinonediimine structure unit and phenylenediamine structure unit in the repeating unit, and 0<m<1, 0<n<1, and m+n=1.), and soluble in an organic solvent in an undoped state, and having the intrinsic viscocity [.eta.] of more than 0.4 dl/g measured in N-methyl-2-pyrrolidone at 30.degree. C., and a conducting organic polymer formed by doping a protonic acid to such a polymer.