Sproutly and Carbify are not just planting trees; they're redefining how ecological impact is measured, verified, and tokenised through cutting-edge blockchain technology.

End-to-End Smart Contract Infrastructure

Our system runs on a robust, audited network of smart contracts, currently deployed on Polygon and soon expanding fully to Base. Each agroforestry system is represented by a unique NFTree, tied to:

• Geo-coordinates

• Tree species metadata

• Carbon absorption data

• Certification status via the Global Carbon Standard

Through our ERC-1155-based architecture, we link every kilogram of CO₂ to specific trees and their verified lifecycle, creating a transparent, traceable, and immutable carbon ledger.

Key contracts include:

• NFTrees & Saplings (multiple batches deployed)

• $aCO₂ tokens, 1:1 representation of real-world CO₂ absorption

• CarbonCertificate generator provides verifiable, on-chain carbon offset documentation

• $SEED and $CBY tokens, with burn logic, staking, and governance mechanisms

• Bridge contracts, enabling cross-chain asset portability (Polygon <-> Ethereum <-> BASE)

• Staking contracts, supporting single-sided and tree-linked staking (Batch 1–15)

• Virtual land plot contracts, enabling reward multipliers and gamified impact

• On-chain NFT marketplace, deployed and live

Unparalleled Traceability

Every NFTree links back to a satellite-monitored master tree of a 15- 25 m2 agroforestry system and is tracked in real-time for CO₂ capture. Each NFT contains:

• Timestamped planting data

• On-chain updates per growth audit (verified by 3rd party)

• Region-specific performance benchmarks

• Lifecycle-based CO₂ output projections (e.g., 25kg in year 1, 175+ kg/year after year 4)

Dynamic Growth via the Virtualiser

All NFTree evolution and metadata updates are managed through the Virtualiser, a smart contract layer that governs the visual and functional transformation of trees over time. Based on verified data such as CO₂ absorption, compost usage, and staking duration, the Virtualiser:

• Updates NFTree visuals (e.g., sapling → mature tree)

• Applies new traits and yield changes

• Tracks evolution milestones (e.g., “Biodiversity Verified”)

This system bridges real-world ecological data with immersive Web3 mechanics, ensuring each NFTree becomes a living asset that grows in value, function, and visual richness as its real counterpart matures.

Users and corporates can click on any tree and view its:

• Absorption stats

• Location and species

• Stake status (locked, NFTree pool, game tree, etc.)

• Contribution to offset certificates

• Satellite images