If you've built a RAG pipeline, you've already rented your AI's memory from someone else. Pinecone goes down — your embeddings are gone. You exceed your AWS budget — your vectors get deleted. The startup you're using pivots — your data disappears overnight. You have no cryptographic guarantee that anything you stored yesterday is still there today. That's not a product complaint. That's a structural problem with how centralized vector storage works. There's no proof. There's no enforcement. There's just trust and an SLA that doesn't actually protect you. We built Engram on Bittensor to fix this at the infrastructure layer. What Engram actually does Engram is a decentralized vector database on Bittensor subnet 450 (testnet). You send text or a pre-computed vector. Engram hashes it into a permanent content-addressed CID using SHA-256 — same input always produces the same identifier, forever.…