Immutable settlement protocols for real-world assets: deployed, ownerless, open templates

Published: (May 2, 2026 at 02:16 PM EDT)
2 min read
Source: Dev.to

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:

  1. ERC primitive – represents a physical or digital asset on‑chain.
  2. 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

ProtocolPurposeDeployment
DeDeParcel delivery settlementNovember 2025
DROPPhysical storage settlementApril 2025
CUTDigital ownership and rights settlementMay 2026
KEYVehicle ownership and sale settlementMay 2026
STAYCommodity settlementMay 2026
ACTPhysical service settlementMay 2026

Architecture & Isolation

  • 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

Contact

pablo-chacon-ai@proton.me

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