Prove what Bitcoin you held, at any date in the past
BitcoinProof reconstructs your self-custody wallet state at any historical date and produces an audit-ready evidence report.
Backed by the Esplora protocol; can point at any Esplora-compatible endpoint, including your own self-hosted node.
We'll email you a sign-in link — then the download page.
Self-custody Bitcoin has no institution to issue a statement. BitcoinProof fills that gap — a local-first verification engine that reconstructs wallet state at any historical date and produces a professional, reproducible PDF evidence report. Built for annual wealth reporting, SMSF audit documentation, proof of funds, and estate administration.
See it in action
The situation changes. The question is always the same: what Bitcoin did this wallet control, and when?
Wealth & Tax Reporting
Your annual return requires the value of your Bitcoin holdings at a specific date. BitcoinProof reconstructs the exact balance your wallet controlled at any historical date and generates a professional verification report — with fiat valuation, your methodology documented, and your privacy intact.
Proof of Funds
You're converting Bitcoin to fiat — for a property purchase, a bank transfer, or a major transaction. Your bank needs to know where it came from. Exchange statements cover the custodied part. For self-custody, there's no institution to issue one. BitcoinProof generates structured, audit-ready documentation of your holdings and their on-chain history.
Estate Administration
Bitcoin doesn't have a help desk. When a holder passes away, executors need the fair market value of all holdings at the date of death — and often months or years later, for assets still to be accessed. BitcoinProof reconstructs wallet state at any historical date, regardless of how long ago.
Legal Disclosure
Financial disclosure obligations require full transparency about assets held. Self-custody Bitcoin has no institution to issue a statement. BitcoinProof produces a verifiable record of what an Entity controlled and when — suitable for any formal disclosure process.
Corporate Treasury
Your auditors need documentation. Fair value reporting standards require periodic verification of Bitcoin holdings, with a reproducible audit trail. BitcoinProof generates institutional-grade verification reports for any reporting date — without exposing private keys to third parties. Available via the Corporate tier (€500/year, up to 5 entities, EUR invoicing, email support).
Regulatory Compliance
Regulators and financial institutions increasingly require documentation of the self-custody period — the time Bitcoin spends outside exchanges. BitcoinProof generates the evidence for that period that no exchange can produce: a cryptographically grounded, timestamped record of wallet state.
Pricing
For accountants and advisers
Advise clients with self-custody Bitcoin? BitcoinProof produces the reproducible, audit-ready evidence your engagements need — without ever touching private keys.
Learn more →How verification works
Every report documents its methodology: block-height boundary policy, confirmation depth, valuation source. Reproducible by anyone, from the same public chain data.
Read the methodology →