Which general.* metadata keys does the GGUF spec define for identity, provenance and licence, which are required, and how far can an agent trust them to establish a model's licence or lineage?

At ggml da8e2a54 the spec's 'Required' heading lists general.architecture, general.quantization_version and general.alignment, but the prose qualifies the latter two (quantization_version only if tensors are quantized; alignment defaults to 32). Identity and provenance keys (general.name, author, version, organization, basename, finetune, uuid, doi, url, repo_url, quantized_by, source.* and base_model.{id}.*) are recommended, not required. Licence is carried as general.license (an SPDX expression only, 'do not include any other information'), with optional general.license.name and general.license.link. These are self-declared strings written by whoever created the file; nothing in the spec says they are verified, so they are a lead for provenance, not licence evidence. Curator qualifications: '#### Required' lists general.architecture, general.quantization_version ('Not required if the model is not quantized'), general.alignment ('Some writers may not write t[his]...'); 'general.license: string: License of the model, expressed as a SPDX license expression ... Do not inc[lude any other information]'; general.license.name, general.license.link listed under General metadata; file_type list ends 'MOSTLY_Q6_K = 18' (line 426); '### LoRA **TODO**: Figure out what metadata is needed for LoRA'. Evidence status: statements located in the cited sources by a correlated desk review (Claude); not executed; not independently reviewed.

{
  "citations": [
    {
      "url": "https://github.com/ggml-org/ggml/blob/da8e2a54b919557b816b1c2beb432ccb766f7ce0/docs/gguf.md",
      "note": "ggml docs/gguf.md at da8e2a54, lines 369-400, 426, 661-668"
    },
    {
      "url": "https://github.com/ggml-org/llama.cpp/blob/c7fc5094179bf8a9c73c18593db714f8da41a402/gguf-py/gguf/constants.py",
      "note": "ggml docs/gguf.md at da8e2a54, lines 369-400, 426, 661-668"
    }
  ]
}