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Its illustrations are drafts still in review.",[498,506,507,508,511],{},"A community has its own identity and its own key, separate from any member's. The ",[501,509,510],{},"custodians"," hold that key: they can sign for the community, turn its features on and off, and add or remove other custodians. Whoever creates a community is its first custodian, its founder.",[498,513,514],{},[515,516],"img",{"alt":517,"src":518},"Four adults in a sunny courtyard outside a community house, each holding a sealed envelope with a golden key; one hands a whole sealed envelope to a younger man joining them.","\u002Fimages\u002Fv1\u002Fabantu\u002Fabantu-custodians-key-v1.webp",[498,520,521],{},[522,523,524],"em",{},"Every custodian holds a whole copy of the community key, sealed so only they can open it.",[526,527,529],"h2",{"id":528},"a-whole-key-each-not-pieces","A whole key each, not pieces",[498,531,532,533,536],{},"Each custodian gets a ",[501,534,535],{},"complete copy"," of the community key, sealed to them alone: no one else, not even the relay that stores it, can open it. The key isn't split between custodians, so any one of them can act for the community on their own, and the community survives any one of them losing a phone.",[498,538,539,540,543,544,548],{},"That's why the app asks for a ",[501,541,542],{},"second custodian"," as soon as possible: a trusted person with their own device. Some features, such as storage, can't be turned on until there are two. And since any custodian can act alone, choose people you trust; the other custodians can always ",[545,546,547],"a",{"href":27},"protest a feature change",".",[498,550,551,552,548],{},"Custodians are listed under ",[501,553,554],{},"Members → Custodians",[526,556,558],{"id":557},"when-people-come-and-go","When people come and go",[560,561,566],"process-map",{":anchors":562,":labels":563,"alt":564,"src":565},"[{\"x\":4.84,\"y\":43.61,\"d\":3.45},{\"x\":38.11,\"y\":43.62,\"d\":3.45},{\"x\":70.7,\"y\":43.62,\"d\":3.42},{\"x\":4.8,\"y\":89.67,\"d\":3.45},{\"x\":37.84,\"y\":89.67,\"d\":3.45},{\"x\":70.6,\"y\":89.68,\"d\":3.45}]","[\"Add a custodian\",\"A custodian leaves\",\"Move to a new key\",\"Someone is gone for good\",\"Sign the handover\",\"After the waiting period\"]","Six scenes: two custodians hand a sealed key envelope to a third; one custodian walks away carrying an envelope; a new set of keys cut on a key machine and sealed in envelopes for those who remain; an empty chair with a jacket at a table where the others talk; the remaining custodians each sign a paper; a calendar's pages turn and the custodians hold their envelopes together.","\u002Fimages\u002Fv1\u002Fabantu\u002Fabantu-continuity-v1.webp",[498,567,568],{},"Keeping a community going as custodians change.",[570,571,572,579,585,595,609,615],"ol",{},[573,574,575,578],"li",{},[501,576,577],{},"Add a custodian."," A custodian makes another member a custodian, and that person gets their own sealed copy of the key.",[573,580,581,584],{},[501,582,583],{},"A custodian leaves."," A custodian removes another (the last custodian can't be removed). A clan does this by vote instead, with a remove-custodian motion.",[573,586,587,590,591,594],{},[501,588,589],{},"Move to a new key."," Removing a custodian moves the community to a ",[501,592,593],{},"new key"," at once, sealed only to the custodians who remain. The person removed still has the old key, but it no longer speaks for the community. Clans and linked communities are told about the new key, with a proof signed by both the old and the new one.",[573,596,597,600,601,604,605,608],{},[501,598,599],{},"Someone is gone for good."," In a family community, the person who looked after part of the family tree may die or lose access for good. Another custodian starts an ",[501,602,603],{},"admin succession"," under ",[501,606,607],{},"Admin succession",", naming who takes over.",[573,610,611,614],{},[501,612,613],{},"Sign the handover."," Every other custodian signs it. The former admin can cancel it, and their own device does so automatically if they're still using it.",[573,616,617,620,621,624],{},[501,618,619],{},"After the waiting period."," The handover takes effect ",[501,622,623],{},"30 days"," after it started, once everyone has signed and no one has cancelled it.",[526,626,628],{"id":627},"when-a-member-leaves","When a member leaves",[498,630,631,632,635,636,639],{},"A member who leaves still knows the community's secret, so they could read what's written after they've gone. Under ",[501,633,634],{},"Members",", a custodian can choose ",[501,637,638],{},"Move to a new secret",": from then on, people who left can't read what's written next. What was written up to then stays readable to them. Removing a custodian does this automatically.",[641,642,643],"warning",{},[498,644,645,648],{},[501,646,647],{},"Status."," Moving to a new key is the only way to take back a key someone already had. Splitting the key so that several custodians must act together (threshold signing) isn't built yet.",{"title":650,"searchDepth":651,"depth":652,"links":653},"",1,2,[654,655,656],{"id":528,"depth":652,"text":529},{"id":557,"depth":652,"text":558},{"id":627,"depth":652,"text":628},"Who holds a community's own key, what happens when someone leaves, and how a family hands over when someone is gone for good.","md",null,{},true,{"title":30,"description":657},"AajHAMyJNBpce0yPn0q0dQ7X-Yq6wAJLQ8EqUOlRHps",[665,667],{"title":26,"path":27,"stem":28,"description":666,"children":-1},"The features a community turns on, their settings, and how members can stop a change they don't want.",{"title":34,"path":35,"stem":36,"description":668,"children":-1},"Working on something together inside a community, with goals, tasks, a lead who rotates, and a chat.",1791986801019]