Design and development of computer hardware and software as part of a digital hallmarking service; data encryption and decoding services as part of a digital hallmarking service; encryption, decryption and verification of information, messages and data as part of a digital hallmarking service; establishing cryptographic means for providing general information on the websites of and the products and services for others as part of a digital hallmarking service; digital watermarking; development of digital watermarks and digital seals as part of a digital hallmarking service