Block / 01 / Manifest
Manifest
Upload, paste, or generate a document. Puresign indexes the spec, marks fields, and routes the chain.
1 of 4
Spec sheet · 01
A signatureis a rhythm,a frame, a SIGN.
Puresign is a signing system for documents that matter. Manifest a contract, verify a hand, archive a proof — all in one kernel, blueprint-clean, legally binding under eIDAS and ESIGN.
A / latency
< 1.2s
manifest to proof
B / chain
4 keys
cryptographic witness
C / coverage
eIDAS · ESIGN
binding worldwide
The chain of attachments, then nothing.
Drag the rule. On the left, the analog mess of scans, prints, faxes, re-sends. On the right, one Puresign block: manifest, verify, archive.
Status quo
PDF, scan, fax,
resend.
Five days of email threads to land one signature. You still aren't sure which file is final.
14 unread · live
Puresign
Manifest. Verify.
Archive.
One link. One block on the chain. Closed in under ninety seconds.
Block #4128 · live
⇆
Drag the rule50 / 100
Four blocks, one chain.
Every signing pipeline at Puresign moves through the same four blocks. Scroll to walk the chain.
01
02
03
04
Block / 02 / Frame
Frame
Add signers, witnesses, and observers. Set deadlines as policy. Lock the order or leave it open.
2 of 4
Spec sheet · 02
Block / 03 / Verify
Verify
Each signer authenticates with rhythm, key, or token. Every action is logged into the proof block.
3 of 4
Spec sheet · 03
Block / 04 / Archive
Archive
Receipts dispatch to all parties. Block is sealed, indexed, and served back as a single permanent URL.
4 of 4
Spec sheet · 04
Manifesto
Paper is permission.
Proof is permanent.
Puresign is both.
Signatures used to be ink on paper — fragile, copyable, debated. We kept the ceremony of agreement, replaced its anxieties with cryptography. Every Puresign block is a promise made public and witnessed by mathematics.
01 / Principle
Witnessed by math, not by margin.
Every block carries its own cryptographic proof. Verification doesn't require us — it requires only the math.
02 / Principle
Ceremony, without paperwork.
The rhythm of agreement stays human. The friction of filing, scanning, faxing — gone.
03 / Principle
Permanent, not perishable.
Once a block is sealed, it cannot be re-written. The chain holds the receipt for a decade and counting.
Puresign — written into the page, witnessed in the chainMMXXVI
Audit-grade by default.
Puresign ships compliant out of the kernel. Hover any badge to read the spec — every claim is auditable on the index page.
System / kernel
Every action lands in the proof block.
System / chain
Four signers, one rhythm, one URL.
System / index
Receipts dispatch in under one second.
Your name. Your signature.
Type your name. Choose a style. That's how Puresign renders it on every sealed block. The fancy bit is the chain underneath.
Step / 01 · Compose
0 / 40
Step / 02 · Pick a style
Dancing Script — relaxed cursive with a confident tilt
Preview · Block specimen
Your name
Signature line · article 12
style
Casual
length
0 chars
hash
—
Awaiting your name
The people who sign with us.
Real workdays, real signatures. Agents, freelancers, foremen, planners, and notaries — anyone who closes paperwork as part of the job.
“Used to chase tenants for signatures across three apps. Now I send one Puresign link from the showing and the lease is done before I lock up.”
Mara V. · Real estate agent
“I send NDAs and service agreements every week. The chain keeps a clean receipt so I never have to dig through ‘final_final_v3.pdf’ ever again.”
Patrick O. · Freelance consultant
“Renewals used to take a week of email tag. Now it’s one link inside the call, signed before we hang up.”
Ren S. · Account manager
“Offer letters, NDAs, IP assignments — they all go out as Puresign blocks. New hires sign before they get the Slack invite.”
Lara B. · HR coordinator
“I run my notarial work through Puresign. The audit chain is exactly what the review board wants to see when I get inspected.”
Krish M. · Notary public
“Month-end is paperless now. Invoices, receipts, vendor agreements — all in one tidy chain instead of scanned PDFs across two inboxes.”
Sofia C. · Bookkeeper
“Lease renewals and repair authorisations now go out from my phone. Tenants don’t need to find a printer to keep the building running.”
Diego R. · Property manager
“Used to chase tenants for signatures across three apps. Now I send one Puresign link from the showing and the lease is done before I lock up.”
Mara V. · Real estate agent
“I send NDAs and service agreements every week. The chain keeps a clean receipt so I never have to dig through ‘final_final_v3.pdf’ ever again.”
Patrick O. · Freelance consultant
“Renewals used to take a week of email tag. Now it’s one link inside the call, signed before we hang up.”
Ren S. · Account manager
“Offer letters, NDAs, IP assignments — they all go out as Puresign blocks. New hires sign before they get the Slack invite.”
Lara B. · HR coordinator
“I run my notarial work through Puresign. The audit chain is exactly what the review board wants to see when I get inspected.”
Krish M. · Notary public
“Month-end is paperless now. Invoices, receipts, vendor agreements — all in one tidy chain instead of scanned PDFs across two inboxes.”
Sofia C. · Bookkeeper
“Lease renewals and repair authorisations now go out from my phone. Tenants don’t need to find a printer to keep the building running.”
Diego R. · Property manager
“Used to chase tenants for signatures across three apps. Now I send one Puresign link from the showing and the lease is done before I lock up.”
Mara V. · Real estate agent
“I send NDAs and service agreements every week. The chain keeps a clean receipt so I never have to dig through ‘final_final_v3.pdf’ ever again.”
Patrick O. · Freelance consultant
“Renewals used to take a week of email tag. Now it’s one link inside the call, signed before we hang up.”
Ren S. · Account manager
“Offer letters, NDAs, IP assignments — they all go out as Puresign blocks. New hires sign before they get the Slack invite.”
Lara B. · HR coordinator
“I run my notarial work through Puresign. The audit chain is exactly what the review board wants to see when I get inspected.”
Krish M. · Notary public
“Month-end is paperless now. Invoices, receipts, vendor agreements — all in one tidy chain instead of scanned PDFs across two inboxes.”
Sofia C. · Bookkeeper
“Lease renewals and repair authorisations now go out from my phone. Tenants don’t need to find a printer to keep the building running.”
Diego R. · Property manager
“Client intake forms used to take a full session to chase down. One link, signed in minutes — and the receipt files itself for me.”
Maya T. · Independent therapist
“Every vendor contract gets the same Puresign treatment. No more lost agreements, no more ‘can you re-send the signed copy?’.”
Tomasz K. · Small business owner
“I draft retainers in the morning and they come back signed before lunch. The pre-verified email step alone saves me an hour a week.”
Aisha B. · Paralegal
“On-site change orders get signed in the truck cab. The chain auto-archives so I never argue about who agreed to what.”
Felix W. · Construction foreman
“Vendor contracts signed before deposit is due. Couples love that they don’t have to wrestle with a PDF on their wedding planner phone.”
Yuki H. · Wedding planner
“Tour riders, performance agreements, merch splits — every part of the show lives in one signed chain. My lawyer is finally happy.”
Otis J. · Music manager
“Policy disclosures signed before the renewal window closes. Customers know exactly what they agreed to, with a receipt that holds up.”
Iris L. · Insurance broker
“MSA, SOW, NDA — every project I take on starts and ends with a Puresign block. Clients ask which tool I use after their first signing.”
Mateo G. · IT consultant
“Client intake forms used to take a full session to chase down. One link, signed in minutes — and the receipt files itself for me.”
Maya T. · Independent therapist
“Every vendor contract gets the same Puresign treatment. No more lost agreements, no more ‘can you re-send the signed copy?’.”
Tomasz K. · Small business owner
“I draft retainers in the morning and they come back signed before lunch. The pre-verified email step alone saves me an hour a week.”
Aisha B. · Paralegal
“On-site change orders get signed in the truck cab. The chain auto-archives so I never argue about who agreed to what.”
Felix W. · Construction foreman
“Vendor contracts signed before deposit is due. Couples love that they don’t have to wrestle with a PDF on their wedding planner phone.”
Yuki H. · Wedding planner
“Tour riders, performance agreements, merch splits — every part of the show lives in one signed chain. My lawyer is finally happy.”
Otis J. · Music manager
“Policy disclosures signed before the renewal window closes. Customers know exactly what they agreed to, with a receipt that holds up.”
Iris L. · Insurance broker
“MSA, SOW, NDA — every project I take on starts and ends with a Puresign block. Clients ask which tool I use after their first signing.”
Mateo G. · IT consultant
“Client intake forms used to take a full session to chase down. One link, signed in minutes — and the receipt files itself for me.”
Maya T. · Independent therapist
“Every vendor contract gets the same Puresign treatment. No more lost agreements, no more ‘can you re-send the signed copy?’.”
Tomasz K. · Small business owner
“I draft retainers in the morning and they come back signed before lunch. The pre-verified email step alone saves me an hour a week.”
Aisha B. · Paralegal
“On-site change orders get signed in the truck cab. The chain auto-archives so I never argue about who agreed to what.”
Felix W. · Construction foreman
“Vendor contracts signed before deposit is due. Couples love that they don’t have to wrestle with a PDF on their wedding planner phone.”
Yuki H. · Wedding planner
“Tour riders, performance agreements, merch splits — every part of the show lives in one signed chain. My lawyer is finally happy.”
Otis J. · Music manager
“Policy disclosures signed before the renewal window closes. Customers know exactly what they agreed to, with a receipt that holds up.”
Iris L. · Insurance broker
“MSA, SOW, NDA — every project I take on starts and ends with a Puresign block. Clients ask which tool I use after their first signing.”
Mateo G. · IT consultant
Step / 04 · Close the chain
Open a Puresign tenant in under two minutes. Manifest your first contract today, archive a proof block by sunset, ship the receipts before standup tomorrow.
Tenants opening · live·No credit card·Cancel anytime