Guides

Proving what was agreed, in plain language.

One question per page, the answer first. Written for contractors, freelancers and landlords who deliver first and get paid last. None of it is legal advice; every page says where the cryptographic proof ends and the law of your own place begins.

Client won't pay for finished work. What can I do?

Finished the job and the client went quiet? Five steps for today: gather your record, send a dated demand, pick your next move, know when to stop chasing.

Updated September 9, 2026

What Should a Contractor Get in Writing Before Starting a Job?

Five things a contractor should put in writing before starting: scope, price, change orders, deadlines, exit terms. Copy-paste example lines included.

Updated September 9, 2026

How Do I Make a Digital Agreement Without a Lawyer?

Five things every freelance agreement needs, an honest comparison of email, e-sign tools and TrustChain, and a free plan to protect one deal a month.

Updated September 9, 2026

How do I prove what was agreed?

Verbal deal, text thread, email, signed PDF, e-signature, fingerprinted record: what each proves about content, time and identity, and where each fails.

Updated September 10, 2026

The client says that's not what we agreed. What now?

Client says that's not what we agreed. The first reply to send, how to preserve the approval message, and how to keep the client without giving up scope.

Updated September 10, 2026

How do I timestamp a document to prove it existed on a date?

Hash it, publish the hash, keep the original. A plain guide to proving a document existed on a date, how each method compares, and how to check by hand.

Updated September 10, 2026