Immutable settlement protocols for real-world assets: deployed, ownerless, open templates
Source: Dev.to
Overview
I have deployed a collection of independent smart‑contract protocols on Ethereum mainnet. Each protocol is a finished piece of infrastructure with no governance hooks, admin functions, or upgradeability. Ownership is renounced on all contracts at deployment.
Protocol Structure
Each protocol follows a two‑component structure:
- ERC primitive – represents a physical or digital asset on‑chain.
- Immutable settlement contract – handles neutral, deterministic settlement.
This is the complete structure. The contracts are verified on Etherscan, and their addresses are listed in the individual protocol repositories.
Quick‑Start Templates
Every protocol has a minimal reference implementation repository (not an SDK or framework). The templates are:
- Readable – clear code that shows the correct way to interact with the protocol.
- Forkable – anyone can fork and deploy them.
- Open – the template path is always accessible; no platform can close it.
Protocols
| Protocol | Purpose | Deployment |
|---|---|---|
| DeDe | Parcel delivery settlement | November 2025 |
| DROP | Physical storage settlement | April 2025 |
| CUT | Digital ownership and rights settlement | May 2026 |
| KEY | Vehicle ownership and sale settlement | May 2026 |
| STAY | Commodity settlement | May 2026 |
| ACT | Physical service settlement | May 2026 |
Architecture & Isolation
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Each protocol is a self‑contained microservice with a single responsibility and a deterministic interface.
-
No protocol knows about the others; there is no shared state, internal coupling, or common coordinator.
-
Platforms orchestrate protocols at a higher layer without modifying the protocols themselves.
- Example: a logistics platform might combine DeDe and DROP.
- Example: a vehicle marketplace might use KEY alone.
- Example: a media platform might use CUT alone.
The key difference from conventional microservices is permanence: these contracts cannot be taken down, modified, or redeployed by their operator. Their behavior is fixed forever.
Substrate Index
A documentation index that aggregates all protocol repositories, template repositories, contract addresses, and orchestration examples:
https://github.com/pablo-chacon/substrate