Agent Registry
Provides an onchain structure for registering and managing CeloHT agents and their operational status.
Programmable infrastructure
CeloHT Smart Contracts
Programmable infrastructure for transparent digital payments, community services, education, and measurable impact across the Celo ecosystem.
CeloHT uses smart contracts as a programmable infrastructure layer for coordinating digital payments, agent-based services, education initiatives, donations, and impact-oriented activities. The architecture is designed to provide transparent, verifiable, and permission-aware interactions onchain.
Modular by designPermission-aware
Agent Registry
Service Payments
Education
CeloHT
Smart Contract Layer
Donations & Impact
Reforestation
Governance & Access Control
Core components
Smart Contract Architecture
The CeloHT smart-contract layer is organized around modular components that support different parts of the ecosystem while maintaining clear separation of responsibilities.
Service Payments
Provides programmable infrastructure for service-related payments and community transactions using supported assets within the Celo ecosystem.
Education
Supports blockchain-based education infrastructure, including verifiable participation, learning records, and credential-oriented functionality where applicable.
Donations & Impact
Provides programmable mechanisms for connecting contributions with CeloHT community and impact initiatives while enabling transparent onchain records.
Reforestation
Supports onchain structures for recording and coordinating environmental initiatives and measurable reforestation-related impact.
Governance & Access Control
Provides permission and administrative controls for managing authorized protocol operations and protecting privileged functionality.
Interaction model
How CeloHT Smart Contracts Connect the Ecosystem
User / Agent
CeloHT Application
Wallet
Celo Network
CeloHT Smart Contracts
Onchain Events & Records
CommunityServicesEducationImpact
CeloHT applications interact with the smart-contract layer through wallet-based transactions and onchain calls. Contract events and transaction records can provide a transparent foundation for applications, analytics, and impact tracking.
User-controlled interaction
Designed for Transparent, Non-Custodial Interactions
The CeloHT architecture emphasizes non-custodial interaction patterns where appropriate, allowing users and agents to interact through their own wallets while smart contracts provide programmable coordination and verification.
This architecture-level description does not assume that every component follows the same custody model. The appropriate interaction pattern depends on the service and its documented contract responsibilities.
Celo-native payment layer
Built on the Celo Ecosystem
Celo
The underlying network environment for CeloHT applications and contract interactions.
CELO
Used for network and gas functionality where applicable, not as a CeloHT-issued asset.
USDm
The CeloHT payment and stable-value asset where applicable. CeloHT does not introduce its own cryptocurrency or token.
Protection by design
Security by Architecture
Role-based permissions
Controlled administrative operations
Separation of responsibilities
Multisignature governance where applicable
Least-privilege principles
Transparent onchain execution
Security is treated as a core architectural concern. The contract layer uses explicit roles and bounded responsibilities, with test-driven contract development supporting review of behavior and invariants. Critical production contracts should be designed for independent security review and audit; this architecture overview does not claim that such a review has occurred.
Technical foundation
Technology Stack
Solidity
EVM-compatible
Celo
USDm
Wallets
CeloHT Applications
Publicly inspectable foundations
Onchain Transparency
Blockchain transactions provide publicly verifiable records of contract interactions. The architecture can support transparent application and impact records without relying on private reporting alone.
Transaction verification
Event tracking
Agent activity records
Payment records
Impact records
Application analytics
Composable foundation
Modular by Design
Agent Registry
Service Payments
Education
Donations & Impact
Reforestation
Governance & Access Control
Separating components allows CeloHT to evolve individual services without unnecessarily coupling every application feature to a single contract. Each domain can retain a clear responsibility while sharing a coherent access-control and payment model.
Design principles
Smart Contract Development Principles
Transparency
Onchain interactions should be independently verifiable.
Modularity
Contract responsibilities should remain clearly separated.
Security
Privileged operations should be protected by explicit access controls.
Interoperability
The architecture should integrate with the Celo ecosystem and compatible wallets and applications.
Non-Custodial Design
User interactions should avoid unnecessary custody of user assets.
Upgrade Discipline
Changes to critical contract logic should follow controlled review, testing, and governance processes.
From people to protocol
Ecosystem Connection
CeloHT Users
Wallets
CeloHT DApp / Applications
CeloHT Smart Contract Layer
Celo Network
USDm / CELO ecosystem infrastructure
Designed to connect CeloHT's real-world initiatives with programmable blockchain infrastructure.
Explore the CeloHT Smart Contract Code
Explore the open-source smart-contract architecture and implementation.