# Time Checkpoint memory backend for LangGraph: restart continuity + SHA receipts (private eval)

**URL:** <https://forum.langchain.com/t/time-checkpoint-memory-backend-for-langgraph-restart-continuity-sha-receipts-private-eval/2662>\
**Category:** Fleet\
**Created:** [January 5, 2026, 1:48am UTC](https://forum.langchain.com/t/time-checkpoint-memory-backend-for-langgraph-restart-continuity-sha-receipts-private-eval/2662 "2026-01-05T01:48:19Z")\
**Posts on this page:** 1\
**Page:** 1

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**Author:** ![Empire.Tech](https://avatars.discourse-cdn.com/v4/letter/e/dec6dc/32.png) [@Empire.Tech](https://forum.langchain.com/u/Empire.Tech)\
**Post date:** [January 5, 2026, 1:48am UTC](https://forum.langchain.com/t/time-checkpoint-memory-backend-for-langgraph-restart-continuity-sha-receipts-private-eval/2662/1 "2026-01-05T01:48:19Z")

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Hi LangChain community,

LangChain Support suggested I share this here to route it to the right place.

I’ve built a standalone Time Checkpoint / Memory Folding Engine demo that behaves like an agent-memory backend with:

- Deterministic time checkpoints (folded state snapshots over time)

- Restart continuity (stop the process, restart, continue from the same truth state)

- SHA-256 receipts + audit trail (verifiable artifacts written to disk)

- Two integration shapes: library mode (direct calls) or local HTTP service (simple endpoints like state/checkpoint/restore)

This is packaged as a turnkey Windows/Python demo intended for private technical evaluation (not a public code drop). I’m happy to share an evaluator checklist and provide the demo pack privately to the appropriate LangGraph/LangChain contact.

Question: Who is the best person/team to evaluate this as a LangGraph memory provider / checkpoint backend (checkpoint/restore/audit) for a confidential review?

Preferred contact: DM me here, or email [ristuben.tech@gmail.com](mailto:ristuben.tech@gmail.com).

Thanks,

John