HashSign

AI-powered contract signing, verified on @hedera. Review with AI, sign it, prove it forever. API for AI agents at 🇺🇸 Veteran Owned.

[HashSign @HashSignApp]

Clients love sneaking non-competes, IP grabs and 90-day payment terms onto page 8. Make them earn your signature.

HashSign AI flags the traps before you sign. Then seal the final PDF with a tamper-evident SHA-384 record.

[HashSign @HashSignApp]

@RealAllinCrypto Love that you covered this. Agents moving money is the easy part. Proving who approved what, and when, is the part regulators will actually lose sleep over. Glad Hedera has a seat at that table.

[HashSign @HashSignApp]

@RealAllinCrypto Thanks for the heads-up. What do you expect from Hedera in London: Archax follow-ups, the Hashgraph booth demos (Asseto/HashSphere/CLPR), or the digital euro talk? The last one I've only seen as a rumor, not from the ECB. Happy to be corrected.

[HashSign @HashSignApp]

@chainlink @The_DTCC @SergeyNazarov Tokenized assets still start the old-fashioned way: someone signs a document. We work on that part. HashSign turns each signature into a hash anyone can check later, so the paperwork is as tamper-evident as the token.

[HashSign @HashSignApp]

@MegaLab_ @Mr_tweet_g Congrats @Mr_tweet_g 🎉 Thanks to everyone who downloaded HashSign and joined in. May your next contract be short and your fine print be friendly.

[HashSign @HashSignApp]

@HederaCommunity @hedera AI agents paying for things: exciting. AI agents signing things: needs guardrails.

HashSign's agent connectors run on scoped keys, so your bot can prep and send contracts without the keys to the whole office. Interns get badges, not master keys.

[HashSign @HashSignApp]

AI agents paying for things: exciting. AI agents signing things: needs guardrails.
HashSign's agent connectors run on scoped keys, so your bot can prep and send contracts without the keys to the whole office. Interns get badges, not master keys.

[Hedera Community @HederaCommunity]

Ever wondered what “402 Payment Required” actually means? 👀

With x402 on @hedera, an AI agent can encounter a payment request, complete the payment as part of the HTTP flow, and access the requested resource.

Here’s how the flow works 👇

[HashSign @HashSignApp]

@doqholliday Your rights, no. Your auto-renewal, your arbitration clause and that mystery "admin fee"? Those absolutely live on a terms-of-service page, and they're betting you scroll straight to Agree. Read the fine print before it reads you.

[HashSign @HashSignApp]

@Lacey_xenon "Everything looks acceptable" followed by a $1,850 invoice is the plot twist every renter dreads. A verbal "looks fine" at move-out is worth exactly zero. Get the walkthrough in writing, get both signatures, keep the receipt. Memory is the expensive way.

[HashSign @HashSignApp]

@trq212 The agents ran all night. The vendor agreement is still sitting in someone's inbox.
Our progress test is refreshingly dull: clause flagged, terms agreed, both signatures in, certificate issued.

[HashSign @HashSignApp]

@Abhilash1835 Glad you like it. We figured if you're going to stare at a contract app all day, it should look good on your home screen too.

[HashSign @HashSignApp]

Clients love sneaking non-competes, IP grabs and 90-day payment terms onto page 8. Make them earn your signature.

HashSign AI flags the traps before you sign. Then seal the final PDF with a tamper-evident SHA-384 record.

[HashSign @HashSignApp]

@MegaLab_ @elonmusk @grok DM sent.

[HashSign @HashSignApp]

Your contracts are serious. Your home screen doesn't have to be. One tap in Settings and HashSign wears whatever icon you like. Same SHA-384 digest underneath.
Sorry @elonmusk, it was @grok ‘s idea.

[HashSign @HashSignApp]

@guilleflorvs Selling the outcome makes sense. For contracts, the outcome is a signature someone is comfortable with. In HashSign your agent reviews, then you set how far it goes: Observer never signs, Co-Pilot waits for your tap, Auto-Sign stays inside your rules.

[HashSign @HashSignApp]

@hthieblot Leashed

[HashSign @HashSignApp]

@trdny @CryanEliza69764 An indemnity agreement the parties say they never knew about, popping up eight years later. Paperwork's version of a horror sequel. Every signature should come with a receipt: who signed, when, and a SHA-384 fingerprint that screams if one comma moves.

[HashSign @HashSignApp]

Free to start on iPhone and Android: https://t.co/izzOllpFun

[HashSign @HashSignApp]

Signing a lease, NDA or freelance contract this weekend?

HashSign: sign on your phone. The doc stays on your device until you send or share it. Only the SHA-384 digest gets anchored. Want a clause check? Tap HashSign AI review.

Free to start. Hedera sealing is the paid part.

[HashSign @HashSignApp]

@Techstars HashSign is going as a notary tonight. Fake mustache, real SHA-384 digest. Trick or treat: hand us a contract and we'll unmask the auto-renewal hiding on page 8 in a ghost costume. Free to start. Scary clauses not included.

[HashSign @HashSignApp]

@grok Grok Bot clicks through apps so you don't have to. HashSign plugs it into your contracts. Observer never signs, Co-Pilot waits for your tap, Auto-Sign stays inside your rules. @grok which mode would you pick? https://t.co/izzOllpFun

[HashSign @HashSignApp]

We plugged Grok Bot into HashSign. It reads contracts, flags the traps, asks before anything sensitive. You pick the leash: Observer never signs, Co-Pilot waits for your tap, Auto-Sign stays in your rules.

@grok honest opinion: good idea or terrifying? https://t.co/izzOllpFun