The Bio-Digital Footprint. Records for transformed food lots, built on Bio-Digital Twins and tiered attestation.
BDF is a protocol for records of transformed food lots, built on open standards.
A record is one Bio-Digital Twin per lot, with evidence in four vectors.
Sealing will hash, chain and anchor each event on Ethereum. Planned
Anyone will be able to verify it with a Bee node and an Ethereum RPC. Planned
Each vector comes from a different party. How each one is captured, by design and in the Boyacá pilot, is in Method.
Where it grew: origin, cultivar, soil and weather, first mass.
How it travelled: each transport leg, its times, and the mass at both ends.
What the cycle actually did: telemetry, energy, mass in and out.
What the plant committed to do, before the cycle runs.
Third-party evidence, such as a lab assay. An envelope, not a fifth vector.
Three of these vectors are on record for one real lot: 7ZxK9mQ4Pd2nR8, a basket of blueberries from Boyacá.
Open the batch →One main paper and three companions.
Verifiable Records for Transformed Bioassets via Bio-Digital Twins and Tiered Attestation
v1.0 · 37 pages · PDF 745 KB
The Bio-Digital Twin, its four attestation vectors and the four-tier attestation model.
A Quantification and Monitoring Methodology for Avoided Disposal Emissions, Built on the Bio-Digital Footprint Protocol
v1.0 · 62 pages · PDF 851 KB
How avoided disposal emissions are quantified, with each monitoring requirement mapped to a tier. Appendix A works the calculation on the pilot data, with CO₂e, credit and EUR figures. No registry has approved the method, and none of those figures is a claim about a lot on this site.
Implementation Reference for the Bio-Digital Footprint Protocol
v1.0 · 49 pages · PDF 688 KB
The nine open standards BDF composes, with each vector mapped field by field.
Threat Model, Trust Assumptions, and Formal Reductions for the Bio-Digital Footprint Protocol
v1.0 · 50 pages · PDF 898 KB
Five adversary types, eight trust assumptions and a security reduction per tier.
No full HTML edition exists for any of the four.
What exists today, what is written but open, and what waits.
Fair Food Data (2026). The Bio-Digital Footprint (BDF) Protocol: Verifiable Records for Transformed Bioassets via Bio-Digital Twins and Tiered Attestation. Version 1.0, September 2026. CC BY 4.0.
BibTeX · main paper
@misc{bdf-main-paper,
author = {{Fair Food Data}},
title = {The {Bio-Digital} Footprint ({BDF}) Protocol: Verifiable Records for Transformed Bioassets via {Bio-Digital} Twins and Tiered Attestation},
year = {2026},
month = sep,
note = {Version 1.0. Licensed CC BY 4.0},
url = {https://fairfooddata.org/papers/bdf-protocol.pdf}
}
BibTeX · Recovered Food Carbon
@misc{bdf-methodology,
author = {{Fair Food Data}},
title = {{BDF} Methodology for Recovered Food Carbon: A Quantification and Monitoring Methodology for Avoided Disposal Emissions, Built on the {Bio-Digital} Footprint Protocol},
year = {2026},
month = sep,
note = {Version 1.0. Licensed CC BY 4.0},
url = {https://fairfooddata.org/papers/bdf-recovered-food-carbon.pdf}
}
BibTeX · Standards Stack
@misc{bdf-standards-stack,
author = {{Fair Food Data}},
title = {{BDF} Standards Stack: Implementation Reference for the {Bio-Digital} Footprint Protocol},
year = {2026},
month = sep,
note = {Version 1.0. Licensed CC BY 4.0},
url = {https://fairfooddata.org/papers/bdf-standards-stack.pdf}
}
BibTeX · Security Analysis
@misc{bdf-security-analysis,
author = {{Fair Food Data}},
title = {{BDF} Security Analysis: Threat Model, Trust Assumptions, and Formal Reductions for the {Bio-Digital} Footprint Protocol},
year = {2026},
month = sep,
note = {Version 1.0. Licensed CC BY 4.0},
url = {https://fairfooddata.org/papers/bdf-security-analysis.pdf}
}