ComfyUI workflows are stored as JSON objects that describe every node, connection, and parameter in the generation graph. When a PNG image is generated, ComfyUI embeds two key metadata chunks: the "workflow" (full node graph for the UI) and the "prompt" (flattened execution parameters).
These workflow JSON objects are the most complete provenance records available in the AI image generation ecosystem. They capture not just the prompt text and seed, but the exact model, VAE, LoRA weights, sampler, scheduler, and every post-processing step. Preserving workflow JSON is essential for reproducibility and compliance.
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Numonic automatically captures provenance, preserves metadata, and makes every AI-generated asset searchable and reproducible.