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NIP-37
======
Draft Events
------------
`draft` `optional`
This NIP defines kind `31234` as a private wrap for drafts of any other event kind.
The draft event is JSON-stringified, [NIP44-encrypted](44.md) to the signer's public key and placed inside the `.content` of the event.
An additional `k` tag identifies the kind of the draft event.
```js
{
"kind": 31234,
"tags": [
["d", "<identifier>"],
["k", "<kind of the draft event>"],
["e", "<anchor event event id>", "<relay-url>"],
["a", "<anchor event address>", "<relay-url>"],
],
"content": nip44Encrypt(JSON.stringify(draft_event)),
// other fields
}
```
A blanked `.content` means this draft has been deleted by a client but relays still have the event.
Tags `e` and `a` identify one or more anchor events, such as parent events on replies.
## Checkpoints
`kind:1234` defines checkpoints that belong to a parent `kind:31234` event. These can serve to provide a revision history of a parent event.
```js
{
"kind": 1234,
"tags": [
["a", "31234:<pubkey>:<identifier>"]
],
"content": nip44Encrypt(JSON.stringify(draft_event)),
}
```
## Relay List for Private Content
Kind `10013` indicates the user's preferred relays to store private events like Drafts. The event MUST include a list of `relay` URLs in private tags. Private tags are JSON Stringified, NIP-44-encrypted to the signer's keys and placed inside the .content of the event.
```js
{
"kind": 10013,
"tags": [],
"content": nip44Encrypt(JSON.stringify([
["relay", "wss://myrelay.mydomain.com"]
]))
//...other fields
}
```
Relays listed in this event SHOULD be authed and only allow downloads to events signed by the authed user.
Clients SHOULD publish kind `10013` events to the author's [NIP-65](65.md) `write` relays.
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