# Capsule Research

Canonical page: https://capsules.run/research/

The research section organizes the intellectual, technical, and applied work behind Capsule.

## Foundational Papers

- Capsule Maturity Levels: continuity-of-work scale from static artifact to cross-environment continuity.
- hello.capsule: the first public high-volume, multi-actor capsule experiment.
- [Capsule as a Primitive for Portable Work](/research/portable-work-primitive/): why the technical moat is melting and why the artifact has to hold.
- [X2X Communication Model](/research/x2x-communication-model/): humans, AI systems, software, and capsules as protocol-equivalent actors.
- Formal Semantics: event chains, actors, state folds, and composition.
- Design Rationale: why ZIP_STORED, JSONL, JCS, SHA-256, Ed25519, and total ordering.

## Architecture Papers

- Integrity Without Infrastructure
- Event Ledger Model
- Delegation and Composition
- Threat Model and Security Analysis
- Capsule Interoperability
- [The Capsule Platform](/research/capsule-platform-architecture/)
- [Skills, Capsules, and Portable AI Capabilities](/research/capsule-skills-portable-capabilities/)
- [Cryptographic redesign from v0.5 to v0.6](/research/v0.5-to-v0.6-cryptographic-redesign/)


## New Publish-Track Drafts

- [Capsule as a Primitive for Portable Work](/research/portable-work-primitive/): the portable control-plane framing for AI-mediated work.
- [The X2X Communication Model](/research/x2x-communication-model/): agent-to-agent communication through sealed, hydratable capsule artifacts.
- [Data Infrastructure Capsules](/research/data-infrastructure-capsules/): flattening relational, graph, document, and vector layers for small projects and model-cooperative workflows.
- [Verified Code Deployment with Capsules](/research/verified-code-deployment-capsules/): code, checks, deployment instructions, approvals, and runtime results as one tracked work artifact.
- [The Capsule Collaboration Bridge](/research/capsule-collaboration-bridge/): user-to-user and AI-to-AI continuity through a shared verifiable artifact, now grounded in the MCP-Hydrate relay experiment.
- [Capsules, Google Cloud Agents, and MongoDB Atlas](/research/google-cloud-agents-mongodb-capsules/): authorized database access and agent deployment instructions through capsules.
- [Google AI Edge Gallery Skills and Portable Document Capsules](/research/google-ai-edge-gallery-portable-documents/): extending offline model work to portable document formats.

## Companion Examples

- [capsules-extra](https://github.com/virionai/capsules-extra)
- [Data infrastructure examples](https://github.com/virionai/capsules-extra/tree/main/capsule-examples/public/data-infra)
- [Hello artifact deployment example](https://github.com/virionai/capsules-extra/tree/main/capsule-examples/public/hello-artifact)
- [Use-case lab](https://github.com/virionai/capsules-extra/tree/main/use-cases)
- [MOGO research artifacts](https://github.com/virionai/capsules-extra/tree/main/MOGO/Research)

## Applied Papers

- [Local-first multimodal medical records](/research/local-first-multimodal-medical-records/)
- Proofs of Concept Mapped to Maturity
- Capsule for Regulated Workflows
- Demo Script

## Forward-Looking Papers

- Low Tech Rules!
- Capsules as Executable Orchestration Artifacts
- UI Portability and Capability-Negotiated Rendering
- Trust Without Identity

## hello.capsule Experiment

`hello.capsule` will be published while we work through multi-actor, multi-LLM contribution and finish the bridge that lets capsules communicate with other capsules. The experiment is deliberately high-volume: we will invite 1,000 users into a connected-capsules experiment and attempt to have them write to the same capsule. The resulting event chains, failures, forks, and handoffs will stress-test the protocol and reveal limits and opportunities for improvement.

Public example: `/examples/hello.capsule`