Create a signing ceremony
Pick the document, choose how you sign, then invite your COSignees.
You're on a phone — and that's all you need. You can complete this here: sign, then share the countersigning link from this device. Your COSignees still need the document itself — share it from this device too.
No signer cost Deadlines, ring behavior, reminders, and document privacy — none of this changes what your signers do.
Require the ring to close within a set time after it opens.
The clock starts when you open the ring. Once it elapses, no one can sign or close — the ceremony expires. The clock starts when you open the ring. A removed COSignee is recorded in your own ceremony history, not in the cryptographic proof; the ring closes only if at least one COSignee has signed.Adds one signer step Location, a drawn signature, attachments, or a code to type — each of these adds exactly one screen for every signer.
Request each signer's location, written into the block they sign.
Only a coarse location (≈ city level) is recorded for the certificate; precise coordinates never leave the signer's device — only a hash is committed. Self-declared.Choose how COSignees unlock the ceremony.
Adds several signer steps The 4-gate consent ceremony — read, name, accept, and confirm — before signing.
As the initiator, you sign first. This is your link — link 1 of the chain. No predecessor to validate; the document hash QR will appear in your photograph.
Head won't stay centered? Turn off Center Stage in Control Center → Video Effects (macOS/iPad auto-framing).
Show audit log
The ring closes when the organizer confirms it. Nothing closes on its own.
Checking this box commits the complete chain — this action is permanent.
This photograph shows that the same person who opened this ring is the one closing it — after watching every other COSignee sign. Unlike your earlier photographs in this ceremony, no one signs after you: this one is sealed into the record for whoever verifies the proof later.
Head won't stay centered? Turn off Center Stage in Control Center → Video Effects (macOS/iPad auto-framing).
This step is optional — declining does not stop the ring from closing. Your photograph is always encrypted on this device before it's sent; COSigna cannot read it. Like every photograph in this ceremony, it declares who you are — it does not verify it.
Ring closed!
The ceremony is complete. Bitcoin anchor pending — confirmation expected within hours. Until then the timestamp is COSigna's own.
Keep these together, in the same folder — that folder is your Capsule: ① your original document ② the Ceremony Certificate, saved right next to it. The certificate carries everything: the proof as a PDF attachment, and clickable doors to re-verification, the shareable « Signed with COSigna » page, and the Bitcoin timestamp. Your Capsule verifies forever — with or without us.
Generate the photo certificate NOW — the decryption key lives in this session's link, and links get lost over the years. Freeze the human evidence into your folder today.