Harvesting & Grading Smart Contract Module

Agarwood Traceability Blockchain Platform – Technical Specification

1. Objective

The Harvesting & Grading Module formalizes the economic realization event in the agarwood lifecycle.

It ensures:

  • Verified harvest eligibility
  • Transparent weight and yield recording
  • Standardized grading documentation
  • Tamper-proof valuation records
  • Buyer-verifiable authenticity

This is the most critical valuation checkpoint for investors and exporters.

2. Harvest Eligibility Validation

Before harvest is permitted, the system verifies:

  • Minimum post-inoculation maturation period
  • Growth Monitoring compliance
  • Health status above threshold
  • No active compliance flags
  • Plantation geo-verification

If validated, smart contract status updates to: “Harvest Approved”

3. Data Fields Captured at Harvest

A. Tree / Block Identification

CategoryData Captured
Plantation IDLinked to registered plantation
Tree or Block IDUnique blockchain reference
Inoculation Event IDLinked to induction record
Harvest DateTimestamp
Operator IDDigital signature
Supervisor IDCo-signature

B. Physical Yield Metrics

ParameterData Captured
Total Wood Weightkg
Resinous Wood Weightkg
Moisture Content%
Resin DensityLab-tested
Wood-to-Resin RatioCalculated
Grade ClassificationA / B / C / Oil-grade
Photo EvidenceHashed reference

4. Grading Framework

The grading algorithm considers:

  • Resin saturation level
  • Color depth
  • Aroma intensity
  • Density
  • Resin distribution pattern

Grading can be:

  • Manual expert input (digitally signed)
  • AI-assisted image analysis
  • Lab-verified density scoring

Final grade is locked via smart contract.

5. Blockchain Workflow

Step 1: Harvest Declaration

Field operator logs harvest via mobile app.

Step 2: Smart Contract Execution

Harvest & Grading Smart Contract:

  • Validates tree eligibility
  • Records weight metrics
  • Anchors grading data
  • Hashes lab certificates
  • Generates valuation snapshot

Step 3: Batch Consolidation

Individual trees grouped into:

  • Harvest Batch ID
  • Export Batch ID (if applicable)

Each batch receives a unique QR-linked blockchain record.

6. On-Chain vs Off-Chain Data

On-Chain:

  • Harvest Batch ID
  • Linked Inoculation Event
  • Grade
  • Weight
  • Timestamp
  • Operator & Supervisor signatures
  • GPS hash

Off-Chain:

  • Lab analysis reports
  • HD photos
  • Video grading evidence
  • Moisture test sheets

All off-chain documents hashed and anchored immutably.

7. Fraud Mitigation Controls

  • No harvest allowed without inoculation record
  • No grading allowed without harvest record
  • Multi-signature validation
  • Geo-verified harvesting
  • Duplicate batch detection
  • AI anomaly detection (e.g., unrealistic resin ratios)

This protects against artificial grade inflation.

8. Financial & Valuation Layer

The module can integrate:

  • Market price feeds per grade
  • Real-time valuation per batch
  • Revenue forecast modeling
  • Export price benchmarking

Investors can see:

  • Verified asset value per hectare
  • Realized yield vs predicted yield
  • ROI per inoculation cycle

9. Buyer-Facing Authentication

Upon grading:

  • QR code generated for batch
  • Buyer scans QR
  • System displays:
    • Plantation origin
    • Inoculation date
    • Growth history
    • Harvest date
    • Grade certification

This increases international trust, especially in premium GCC markets.

10. Strategic Impact

This module transforms agarwood from a trust-based commodity into a data-verified asset class.

For the market:

  • Reduces disputes
  • Strengthens export credibility
  • Supports premium pricing

For investors:

  • Locks valuation event immutably
  • Reduces fraud risk
  • Enables securitization potential