Apply to contribute to the Proof ledger.

Proof is built by a controlled network of verified contributors. Every application is reviewed for accountability. Verification takes one to three weeks.

Before applying, read the contributor charter →

Real on-farm work. Honest record-keeping. Accountability on the public record.

01Real on-farm trials. Hypothetical, simulated and demonstration records are not Proof Records.
02A willingness to lock null, negative and mixed outcomes with the same care as positive ones.
03A willingness to declare conflicts, affiliations and sponsorships on the record itself.
04A professional or institutional standing that can be verified at application.
05A long view. Proof Records are permanent at lock; contributors who cannot accept this should not apply.

01
Apply
Complete the form below. Submission logged through Proof's application route.
02
Verify
Identity, role and standing verified. One to three weeks.
03
Outcome
Approved, more information requested, deferred, or not approved.
04
Onboard
Workbench credential and short contributor briefing.

Verified contributors gain a permanent, citable record of their work, access to the Workbench, and the ability to raise Evidence Queries on records by other contributors.

What every contributor receives →

If Proof is for you, the form below is the next step.

Every field is reviewed. Take the time the form needs; applications without sufficient detail are deferred rather than approved.

Application information is held privately by Proof and is not published on the ledger. Verification is by a small team; correspondence is by email.

Identity

Full name·

Email·

Phone

Role

Contributor type·

Role title·

Organisation

Organisation website

Work

Crops you work with·

Regions you work in·

Trial experience·

Expected Proof Records per year

Attribution preference

Default attribution mode·

NamedYour full name and organisation appear on the record.RoleRole-only attribution (Verified agronomist, Verified researcher, Verified farm manager).PseudonymousA persistent pseudonym linked to your verified Proof identity.

Conflicts and affiliations

Commercial relationships, sponsorships, distributorships

Acknowledgements

I understand that locked Proof Records are permanent and append-only. Records cannot be silently edited, withdrawn under pressure, or removed because an outcome is inconvenient.I will lock null, negative and mixed outcomes with the same care as positive ones. I will not cherry-pick which trials to publish.I will declare commercial conflicts, sponsorships and affiliations on every affected record. I understand that conflict declaration changes how a record is read; it does not change which records get published.I will engage with Evidence Queries raised against my records, either by addendum or by accepting the question as part of the record's history.I have read Proof's privacy notice and consent to Proof storing this application privately and contacting me about it by email.

By submitting, you confirm the acknowledgements and privacy consent above. Verification takes one to three weeks. Proof will respond by email where follow-up is needed.

The contributors verified in the first seasons will define what trustworthy on-farm evidence looks like for the decades that follow.