Your personas, for every AI. Kept by you.
3P decodes your journal into personas you approve. Give each AI, app or person only the one you choose, and take it back any time. Start today with a private journal.
No login. No account. Free to start.
01Personas for every AI
Write for a week. 3P decodes your entries into personas: you at work, you as a parent, you on stage. Each one is yours to approve, and only the one you choose goes to an AI or an app.
Decode
Your faces are found from patterns in your own entries, never asked for up front. You name, keep or reject each one. Measured so far on invented people only.
Give
Hand one persona to ChatGPT, Claude or any app as a signed card. It knows that side of you, and nothing else.
Take back
You can take a card back. It stops being shown at once; it cannot make anyone forget what they already read.
Coming soon. The decoder runs today on our own computers; it is not open to the public yet.
02Connect across your networks
The right people are already in your networks. 3P shows you who, and why to talk, without anyone holding your record.
- When you meet someone, 3P tells you one thing worth talking about, with the entries it rests on. Or nothing.
- Through people you trust: an introduction travels only along the people each of you chose to trust.
- Nobody can pay to reach you. Not an employer, not an advertiser, not another person.
Meeting works today: scan each other's card on the record page and see one reason to talk, and what you share. Introductions across networks are being built.
03Start with a private journal
Write a few true lines a day, kept in your browser. Show only what you choose, as a signed card anyone can check.
04Start here
- Your recordOne true line a day, in English or Persian. Once open, it works offline.Start writing
- Sign a cardChoose a tag and how long the card stays valid. Only those entries go on it.Sign one
- Check a cardAnyone can check a card's signature in their own browser.Check one now
- Meet someoneScan each other's card. Each of you sees one reason to talk, or nothing, and what you share.Meet now
- A team's notebookA shared notebook built only from the cards members choose to publish.See the notebook
- DevelopersOpen formats, shared test vectors, the verifier and the assistant interface.Read the protocol
05How it works
Write
One sentence is enough. Tag it, like #work or #کار. A late entry is labelled as written later, never hidden.
Sign
Pick a tag and how long the card stays valid. Your signing key is made in this browser and cannot be exported.
Show
Give the card to anyone. They check it in their own browser. Change one character and it fails.
06When two people meet
A meeting, step by step
Invented people. The real meeting code, recorded.- Three invented people walk into a room: Ana, Bahar and Chen. Each card shows only what that person opened.
- Ana invented, face: work. “Moved the clinic app's storage to SQLite”; what matters now: “Ship offline sync for the clinic app”. 2 entries stayed home.
- Bahar invented, face: work. “Shipped offline sync for a rural clinic app”; what matters now: “Find a second clinic for the offline sync pilot”. 1 entry stayed home.
- Chen invented, face: music. “Played the cello at the community hall”.
- The Collector invented only listens; it broadcasts nothing.
- Each phone broadcasts a handle that keeps changing. This is all someone logging the room hears:
0c2a4632dbea25603891aff926c55b7fb9253a5f7f9abfeb. An hour later, or at another event, the same people broadcast other handles. - They swap cards. Each card is signed, and each side checks the signature.
- Ana hears one thing about Bahar: “Talk to them about what you are both working on: “Find a second clinic for the offline sync pilot””. It rests on “Ship offline sync for the clinic app” (Ana’s card) and “Find a second clinic for the offline sync pilot” (Bahar’s card).
- Bahar hears one thing about Ana: “Talk to them about what you are both working on: “Ship offline sync for the clinic app””. It rests on “Find a second clinic for the offline sync pilot” (Bahar’s card) and “Ship offline sync for the clinic app” (Ana’s card).
- Between Ana and Chen, and between Bahar and Chen, 3P says nothing. Nothing worth saying right now. That is often the truth.
- The Collector asked for cards but broadcast nothing. Ana, Bahar and Chen each refused it: no broadcast, so not mutual. Someone who only listens in the room gets nothing from you.
- They leave. Each record is the same before the meeting and after. Nothing about where you met, or who was there, is kept. Unless you both choose to witness each other's record: then each keeps the other's signature and its date, never the place.
07What 3P holds to
08Built to be checked
- 0accounts to make
- 0analytics on this site
- 2languages, Persian and English
- 3browser engines check every page before it goes live
Your private side.Everything you write stays here, with you.
A persona is a lantern you choose to carry.Only the ones you pick cross over.
On the other side, it is signed.Anyone can check it. Nobody can change it.
Where people meet.One good reason to talk, or nothing.