Signed edge evidence
Weighbridge and site events signed with an Ed25519 device key at the source; unsigned or mis-signed events are rejected.
Verifiable EPR compliance
ProofCycle: proof that recycling actually happened.
ProofCycle turns what happens at a recycling site, material weighed, sorted and dispatched, into signed and independently verifiable evidence, and links India’s EPR certificates to recycling that can be proven.
Status: In development
The problem
India’s Extended Producer Responsibility system depends on certificates that say recycling took place. A Centre for Science and Environment investigation published in October 2024 found plastic EPR certificates issued far beyond the recycling capacity that could have produced them. Producers, importers and brand owners who buy those certificates carry the compliance risk, and under the Plastic Waste Management (Amendment) Rules, 2026 verification can be carried out by Registered Environment Auditors, who need evidence they can rely on.
How we approach it
Evidence is captured and signed where the material is. Weighbridge readings and site events are signed with a device key before they leave the site, and the platform rejects anything unsigned or altered. Each batch is reconciled against inbound and outbound records, a certificate can only be linked to mass that has been proven, and a certificate number can be linked once. Anyone can verify a certificate without an account.
Capabilities
What it is being built to do.
Batch reconciliation
Inbound and outbound mass reconciled per batch, with discrepancies flagged rather than averaged away.
Material classification
Computer vision checks the operator’s material tag, and disagreement between the two is reported for each batch.
Certificate linking
A certificate is bound to proven outbound mass and can be linked only once, closing the double-counting gap.
Public verification
Anyone holding a certificate number can check the evidence behind it, without creating an account.
Audit file
Evidence assembled in the form an environment auditor or regulator reviews.
Who it is for
Built for.
Producers, importers and brand owners
Buying EPR certificates they can defend in an audit.
Plastic, e-waste and battery recyclers
Showing that their certificates are backed by evidence, not only paperwork.
Registered Environment Auditors
Verifying compliance against signed site records.
Waste processors and aggregators
Passing verifiable records along the chain of custody.
Related
Built on this work.
AI & Intelligent Systems
We build applied AI systems - retrieval, agents, forecasting and vision - that sit inside real workflows and are evaluated against your data, not a public leaderboard.
Blockchain
Protocol, contract and integration work for cases where shared state has to be provable - with the gas, finality and upgrade constraints designed in from the start.
Data Services
We engineer scalable data infrastructure that transforms complex information into reliable, actionable intelligence.
FAQ
Questions we get asked.
Under India’s Extended Producer Responsibility rules, registered recyclers generate certificates for the waste they process. Producers, importers and brand owners buy them to show on the CPCB portal that their recycling obligations are met.
Most EPR software records and files what it is told. ProofCycle is built to verify the recycling event itself, using signed evidence from the site, so a certificate can be checked against proof rather than paperwork.
The data model covers all five CPCB EPR categories: plastic packaging, e-waste, batteries, tyres and used oil. Pilots start with one material category per site.
In development. We want to hear from recyclers, brand owners and auditors who need verifiable evidence behind EPR certificates.
Shape it with us.
We are looking for design partners who will use it in production. Tell us about your programme and we will show you where it stands.