Core Principle & Problem Statement
Commercial courier services charge ₹80–₹150 and require 24–48 hours to transport books or drafting instruments across campus zones. Meanwhile, hundreds of college students travel daily along identical road corridors with empty bags and pillion capacity.
0.0 g
Additional CO₂ Emissions
< 35 min
Avg. Transit Delivery
₹20–₹35
Legal Fuel Share Contribution
Authorized Category Whitelist Matrix
To guarantee zero liability and student safety, CPP only permits non-hazardous academic essentials:
Engineering Drafter & Drawing Sheet
Max 1.5 kgMini-drafters, T-squares, drafting clipboards, and cylindrical sheet containers.
Academic Textbooks & References
Max 2.0 kgSemester reference books, university syllabus texts, GATE and competitive exam manuals.
Scientific Calculator & Peripherals
Max 0.8 kgApproved FX-991 series calculators, drawing compass sets, geometric instruments.
Handwritten Class Notes & PYQ Banks
Max 1.0 kgSpiral-bound notes, lab manuals, university previous year question solutions.
Laboratory Apron & Workshop Coats
Max 0.5 kgChemistry white aprons, mechanical workshop dungarees, safety goggles.
Electronics exceeding 2 kg, laptops, smartphones, unsealed liquids, food items, cash, exam answer scripts, and commercial merchandise are strictly rejected by the protocol. Any attempt to carry unauthorized items results in instant suspension of college SSO credentials.
Spatial Corridor Matching & Route Deviation (RDI)
Unlike commercial delivery drivers who make arbitrary trips, CPP matches requests strictly to students already traveling along a verified commuter corridor.
Route Deviation Index (RDI) Constraint
RDI = (Detour Route Distance - Direct Route Distance) / Direct Route Distance ≤ 0.15
A student commuter is only prompted if the pickup and drop-off points add less than 15% deviation to their normal college journey. This keeps trips safe, punctual, and non-commercial.
Dual-Party Cryptographic Handshake
To eliminate delivery disputes and parcel theft, CPP implements a two-stage cryptographic handshake with dynamic 6-digit one-time PINs and HMAC-SHA256 tokens:
The sender presents a 6-digit Pickup PIN or QR code to the commuter. The commuter enters or scans it to transition the status from accepted to in_transit.
Upon arriving at the destination campus, the recipient inspects the item and provides their dynamic Delivery PIN. Verification automatically completes the record and logs the carbon savings.
15-Minute Timeout & Campus Fallback Engine
No Student Left Stranded
Automated transition to campus library and peer barter listings
If no commuter along the corridor accepts a parcel request within 15 minutes, the system does not leave the student waiting. It automatically notifies the requester and queries the local campus exchange database to display matching items available for immediate borrowing or exchange on campus.
Motor Vehicles Act & Non-Commercial Compliance
CPP is strictly non-commercial. Suggested contributions cover only the actual shared fuel expenditure of the journey calculated from ARAI engine displacement specs (e.g. 100cc–150cc motorcycles with 45–60 km/l mileage). BatchLoop charges zero transaction commissions.