> ## Documentation Index > Fetch the complete documentation index at: https://project-brain.rocheaiops.net/llms.txt > Use this file to discover all available pages before exploring further. # Memory versus knowledge > Personal records, source-backed document knowledge, provider knowledge, and transient answers have different roles. | Thing | Canonical? | Persistent? | Owner | | ------------------------------ | ----------------- | -------------------------- | -------------------------------------- | | Accepted personal record | Yes | Yes | B.R.A.I.N. | | Document artifact and metadata | Yes | Yes | B.R.A.I.N. portable storage + database | | Embedding/vector index | No, derived | Rebuildable | B.R.A.I.N. | | Gemini pretrained knowledge | No | Provider-owned | Gemini | | A transient provider answer | No by itself | No by itself | Provider | | Basic Memory note | No cognitive role | Separate development store | Basic Memory |

Open full-size diagram: Document knowledge pipeline A document chunk is knowledge evidence, not a personal belief. A provider answer may be evaluated, but it does not automatically enter canonical state. See [who knows what](/concepts/who-knows-what).