The cost of proof is nothing.
The cost of having none is everything.
One seal. Court-ready. Choose how you pay for it — every plan protects the same record with the same cryptographic weight.
Metered
For solo lawyers
Pay only for the seals you create. No subscription, no commitment.
- Pay-as-you-go, no monthly bill
- 12 seals / minute (adjustable)
- Up to 54 MB per seal
- Email support
Files over 54 MB (to 100 MB) count as two seals. Otherwise the same 50 cents — screenshot, recording, or conversation.
Charter Membership
For the first twenty-two
Reserved for the twenty-two individuals who seat themselves first. Locked for the life of continuous subscription.
- 1 GB pooled storage / month
- Lifetime price lock at $299
- A seat on the public register
- Roadmap influence as a founding member
- Email support from the founder
$299 / seat for the life of continuous subscription. Charter status may be reviewed if your subscription lapses for 60+ days.
Standard
For firms of one to a hundred
The post-Charter subscription. Same seal, larger storage, no scarcity.
- 5 GB pooled storage / month
- Available immediately, no waitlist
- Self-serve seat management
- Email support
Bespoke
For Am Law 200
A contract conversation. Negotiated storage, terms, and procurement to match how your firm buys software.
- Negotiated storage allowance
- Annual contract on your paper
- Direct invoicing & net-30 terms
- Procurement & onboarding support
Every AI keeps logs. None of them is a disinterested witness.
Your provider holds your logs in readable, changeable form — and it is a party with its own interests, not a neutral notary. Apostillum never sees your content, cannot alter it by design, and anchors the proof to public infrastructure outside anyone’s control.
Disinterested. Not your AI vendor, not your firm. We have no stake in what the record says — and never see it.
Blind by design. We hold a one-way fingerprint and zero key shares. We cannot read, alter, or delete your record — not even under subpoena.
Proof, not a promise. “We won’t delete, won’t train” is a policy a court can override. An anchor on Bitcoin and Hedera cannot be.
Which is why even on the smallest plan, your record is more defensible in court than a Fortune 500’s default enterprise AI logs.
In 2025 a federal court ordered ChatGPT logs preserved despite OpenAI’s own deletion policy, then compelled production of twenty million of them. A provider’s promise can be overridden; a cryptographic anchor cannot.
In every tier
20-year retention on every sealed record. WORM immutable — the same record on day 7,300 as on day one.
Triple-witness anchoring. Every seal is timestamped on Hedera, Bitcoin, and RFC 3161. If one fails, the other two still authenticate.
Shamir-split keys. Apostillum holds zero shares. We cannot decrypt your content, even under subpoena.
Designed for FRE 902(14) self-authentication. The record carries its own proof of integrity — no separate witness required.
Public verifier portal. Opposing counsel, the court, or the bar can verify any seal independently — no login required.
Zero-knowledge architecture. We cannot read, alter, or delete your content. Not technically. Not under court order.
What sanctioned counsel had vs. what sealed counsel has at the Rule 11 hearing.
Three lawyers. Same prompt to ChatGPT. Different records. Only one survives a sanctions motion.
Mata. Park. Wadsworth. Butler Snow.
Raw ChatGPT screenshots. Re-run prompts that produced different output the second time. An affidavit that says “I asked it.”
$0 up front — then 1–3 days of non-billable scramble the moment it’s challenged. 8–24 hours at $600/hr you never invoice — the responses aren’t instant — on top of $5,000 to six figures in sanctions.
Re-running prompts that won’t reproduce. Rebuilding the record from memory, under a deadline, with no guarantee it holds. The prep you skipped, owed back with panic.
“Gibberish.” “Subjective bad faith.” “Below the basic obligations of counsel.”
$5,000 sanctions. Disqualification. A grievance panel. A name in the published opinion, forever.
The honest lawyer’s tax.
Contemporaneous notes. Timestamped screenshots in the matter folder. An affidavit reconstructing each prompt. Maybe a notarized printout.
1.5–3 attorney hours per matter, forever. Roughly $900–$1,800 at $600/hr — time you do not bill back.
You dig through the matter folder and hope the notes are complete and the screenshots legible. Defensible — if you were disciplined every single time.
Admissible if the judge believes you. The hearsay objection survives. Chain of custody is your word against silence.
Nothing — if you are honest, organized, and the judge is patient. Three conditions you do not control.
The same record. Court-ready.
One PDF. A cryptographic seal designed for FRE 902(14). Hedera + Bitcoin + RFC 3161. WORM immutable, 20-year retention.
12 seconds. $0.50 a seal — or included in your plan.
You export one PDF. Twelve seconds. The record was finished the day it was made.
A record built to self-authenticate. No witness needed for the seal — the seal is the witness.
Nothing. The record speaks for itself.
Real cases: Mata v. Avianca, 678 F.Supp.3d 443 (S.D.N.Y. 2023); Park v. Kim, 91 F.4th 610 (2d Cir. 2024); Wadsworth v. Walmart, D. Wyo. 2025; Johnson v. Dunn (Butler Snow disqualification), N.D. Ala. 2025. Over 1,300 AI-hallucination cases tracked at damiencharlotin.com/hallucinations.
And then the court orders a forensic audit.
An audit can be compelled no matter what you filed — that call belongs to the judge, not to us. What we can change is what the audit finds.
Apostillum is not a cheaper audit, and it can’t promise a judge won’t order one. It guarantees the other half — the half that actually fails today: the record is sealed and anchored the moment it’s made, so it is there — reliably, in seconds, for twenty years. A forensic audit hopes to recover what might be gone. Apostillum hands over what was never lost.
Charter is twenty-two seats. When the twenty-second is taken, it closes.
Charter seats belong to individuals, not firms — twelve attorneys at one firm means twelve seats, each with a name on the register. One seat per individual: one email, one card, one name. It is cheaper than Standard because founding members shape the product; that discount is their compensation, not a promotion. When the twenty-second seat is claimed, Charter is retired.