Method, device, and computer program product for embedding watermark

An electronic device, comprising:

• at least one processor;
• and
• memory coupled to the at least one processor and having instructions stored therein, wherein the instructions, when executed by the at least one processor, cause the electronic device to perform actions comprising:
• generating, by a content generation model, first content based on a user-inputted instruction;
• generating a first watermark for determining a user source based on a user identifier;
• generating a second watermark for determining a model source based on a model parameter of the content generation model;
• and
• embedding the first watermark and the second watermark into the first content to generate second content with dual watermarks;
• wherein the first watermark is generated at least in part as a function of (i) a local feature, the local feature being determined based on the user identifier and at least one key associated with the user identifier, and (ii) at least one random feature.

A computer program product comprising a non-transitory computer-readable medium having machine-executable instructions stored therein, wherein the machine-executable instructions, when executed by a machine, cause the machine to perform actions comprising:

• generating, by a content generation model, first content based on a user-inputted instruction;
• generating a first watermark for determining a user source based on a user identifier;
• generating a second watermark for determining a model source based on a model parameter of the content generation model;
• and
• embedding the first watermark and the second watermark into the first content to generate second content with dual watermarks;
• wherein the first watermark is generated at least in part as a function of (i) a local feature, the local feature being determined based on the user identifier and at least one key associated with the user identifier, and (ii) at least one random feature.