Method for validating additively manufactured components, comprising the steps of: transmitting, to a distributed validation network implementing a block-chain protocol by mans of a print job entity, printing specification data for a component that is to be additively manufactured; validating the printing specification data by means of the distributed validation network, and concatenating the printing specification data as block to a print history ledger managed by the distributed validation network together with a cryptographically encoded checksum being formed by a hash function that comprises the transmitted printing specification data and the cryptographically encoded checksum of the last block of the print history ledger as the function argument; transmitting the printing specification data by means of the print job entity to a 3D printing device; implementing a generative manufacturing process for the component that is to be additively manufactured, by means of the 3D printing device and in accordance with the transmitted printing specification data, characterised in that, while the generative manufacturing process is being carried out, in each case following specified manufacturing stages, a plurality of manufacturing parameters prevailing in the preceding manufacturing stage are transmitted to the distributed validation network, and in that subsequent manufacturing stages are released by the distributed validation network in order to be implemented in the 3D printing device only if the transmitted manufacturing parameters have been successfully matched to the printing specification data stored in the print history ledger, the method further comprising the steps of: creating, by means of a certification point, a certificate, regarding successful validation of the generative manufacturing process, for the additively manufactured component if each of the manufacturing stages of the generative manufacturing process has been released by the distributed validation network; and adding the certificate, together with a cryptographically encoded checksum, to the print history ledger, wherein the 3D printing device applies a check code, corresponding to the certificate, to the additively manufactured component using a generative manufacturing method. transmitting, to a distributed validation network implementing a block-chain protocol by mans of a print job entity, printing specification data for a component that is to be additively manufactured; validating the printing specification data by means of the distributed validation network, and concatenating the printing specification data as block to a print history ledger managed by the distributed validation network together with a cryptographically encoded checksum being formed by a hash function that comprises the transmitted printing specification data and the cryptographically encoded checksum of the last block of the print history ledger as the function argument; transmitting the printing specification data by means of the print job entity to a 3D printing device; implementing a generative manufacturing process for the component that is to be additively manufactured, by means of the 3D printing device and in accordance with the transmitted printing specification data, characterised in that, while the generative manufacturing process is being carried out, in each case following specified manufacturing stages, a plurality of manufacturing parameters prevailing in the preceding manufacturing stage are transmitted to the distributed validation network, and in that subsequent manufacturing stages are released by the distributed validation network in order to be implemented in the 3D printing device only if the transmitted manufacturing parameters have been successfully matched to the printing specification data stored in the print history ledger, the method further comprising the steps of: creating, by means of a certification point, a certificate, regarding successful validation of the generative manufacturing process, for the additively manufactured component if each of the manufacturing stages of the generative manufacturing process has been released by the distributed validation network; and adding the certificate, together with a cryptographically encoded checksum, to the print history ledger, wherein the 3D printing device applies a check code, corresponding to the certificate, to the additively manufactured component using a generative manufacturing method. creating, by means of a certification point, a certificate, regarding successful validation of the generative manufacturing process, for the additively manufactured component if each of the manufacturing stages of the generative manufacturing process has been released by the distributed validation network; and adding the certificate, together with a cryptographically encoded checksum, to the print history ledger, wherein the 3D printing device applies a check code, corresponding to the certificate, to the additively manufactured component using a generative manufacturing method.