Open Problems

Watermarking & Deepfake Detection

Black-Box and Architecture-Agnostic Watermarking and Defense for Diffusion Models

Barrier to removePartly addressed
Possible candidate · 3/5 runs4 papers report this100% from 2025+

Generated automatically from the limitations stated in 4 papers (ICML, ICCV, NeurIPS), listed under Evidence. It is not a paper, and it does not come from papers submitted to CSPaper.

The problem

Current proactive watermarking, attribution, and anti-customization defenses structurally assume white-box access to target latent diffusion models, requiring direct inspection of latent spaces, VAE fine-tuning, or gradient backpropagation through internal U-Net attention layers. In practical deployment scenarios, defenders and copyright holders must protect content against proprietary black-box APIs, pixel-space diffusion models, or non-VAE architectures where internal activations and weights are inaccessible. Because existing methods are tethered to specific LDM preconditions, there is currently no verified mechanism to provide provenance or anti-fine-tuning protection across arbitrary or black-box diffusion pipelines.

Why it matters

Enables copyright protection, model attribution, and deepfake prevention across closed-source generative APIs and emerging non-LDM diffusion architectures.

Ways to approach it

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  1. 1

    Cross-Architecture Transferability Benchmark: Implement standard surrogate-based watermarking and adversarial perturbation techniques on open-source LDMs and measure their attribution retention and attack success rate when transferred blindly to pixel-space diffusion models and non-VAE generative architectures.

  2. 2

    Purely Pixel-Space Watermarking and Verification: Construct a diffusion-independent, pixel-space watermarking pipeline operating strictly on image inputs and outputs without intervening in latent encodings or attention layers, measuring bit recovery accuracy, visual fidelity (FID/PSNR), and robustness against post-processing across diverse generative backbones.

  3. 3

    Zeroth-Order Query-Based Protection: Formulate black-box anti-customization perturbation generation using score-based or zeroth-order optimization over output queries rather than white-box U-Net attention gradients, measuring protection success against unauthorized fine-tuning under strict query budgets.

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Why it might fail

Black-box query costs for generating reliable perturbations without gradient access may prove too high for practical adoption, or cross-architecture perturbation transferability from surrogate models might be fundamentally too weak against modern image-to-image fine-tuning pipelines.

Evidence

Each paper's own statement of the limitation, verbatim.

Nearest existing work

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Watermarking & Deepfake Detection

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Black-Box Verification and Trigger Generation for Model Watermarking and Detection

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Generated automatically, not curated by hand. Automated prior-work checks catch about a third of existing work, so treat this problem as a lead to investigate.