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22 Commits

Author SHA1 Message Date
fiatjaf_
2430e960c7 Merge branch 'master' into simplify-nuts 2025-02-03 22:35:28 -03:00
fiatjaf
f9cba8846f nip61: improve confusing final consideration. 2025-02-03 22:34:29 -03:00
Ethan Tuttle
93568e3971 Update 60.md (#1738) 2025-02-04 08:27:25 +09:00
fiatjaf_
4ab75f0c3d Merge branch 'master' into simplify-nuts 2025-02-03 15:23:38 -03:00
Asai Toshiya
8577545faa nip60: fix links. 2025-02-03 23:00:33 +09:00
fiatjaf
bb88c66c1d remove units everywhere. 2025-02-03 09:32:39 -03:00
Terry Yiu
c88d925613 Update kind 10013 description in README (#1736) 2025-02-02 19:38:15 -08:00
fiatjaf
22660b4c66 remove traces of "wallet id". 2025-02-02 22:14:10 -03:00
fiatjaf
c2adb4b780 migrate to single replaceable and remove units, remove wallet name and description, force all tags to be encrypted always except for "redeemed". 2025-02-01 15:17:42 -03:00
fiatjaf
195e504c00 remove "amount" from nutzap. 2025-01-31 15:30:29 -03:00
fiatjaf_
deb01f43d8 another balance
Co-authored-by: Tiago Balas <eskema23@gmail.com>
2025-01-31 14:50:29 -03:00
fiatjaf_
6e040513e0 remove balance here too
Co-authored-by: Tiago Balas <eskema23@gmail.com>
2025-01-31 13:01:27 -03:00
Asai Toshiya
e09f6dad27 add NIP-71 change. 2025-02-01 00:59:52 +09:00
fiatjaf
1fe24a6149 nip60/61 updates. 2025-01-31 00:01:15 -03:00
fiatjaf_
6a4b125ad7 nip71: make video events regular (#1704) 2025-01-30 23:21:37 -03:00
daniele
f440eac3dc Remove reference to 'username' and update descriptions in metadata (#1726) 2025-01-30 13:49:06 -08:00
P. Reis
7370729472 NIP-60: jsonconc -> jsonc (#1727) 2025-01-30 05:45:35 -08:00
k.
54b431e701 Add x tag to NIP-56 (#1669) 2025-01-29 13:15:18 +03:00
P. Reis
993c8a025e parameterized replaceable -> addressable (#1722) 2025-01-29 09:26:41 +09:00
Pablo Fernandez
36c48ca128 NIP-60: more consistent state transition (#1720) 2025-01-28 16:26:21 -03:00
Kieran
70db801bb7 Update 92.md (#1721) 2025-01-28 06:37:54 -08:00
Asai Toshiya
a7f30b1eb2 add kind 32267 to list. (#1698) 2025-01-28 12:33:53 +09:00
11 changed files with 147 additions and 165 deletions

2
01.md
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@@ -89,7 +89,7 @@ Kinds specify how clients should interpret the meaning of each event and the oth
This NIP defines one basic kind:
- `0`: **user metadata**: the `content` is set to a stringified JSON object `{name: <username>, about: <string>, picture: <url, string>}` describing the user who created the event. [Extra metadata fields](24.md#kind-0) may be set. A relay may delete older events once it gets a new one for the same pubkey.
- `0`: **user metadata**: the `content` is set to a stringified JSON object `{name: <nickname or full name>, about: <short bio>, picture: <url of the image>}` describing the user who created the event. [Extra metadata fields](24.md#kind-0) may be set. A relay may delete older events once it gets a new one for the same pubkey.
And also a convention for kind ranges that allow for easier experimentation and flexibility of relay implementation:

20
29.md
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@@ -122,29 +122,23 @@ Each moderation action uses a different kind and requires different arguments, w
| kind | name | tags |
| --- | --- | --- |
| 9000 | `put-user` | `p` with pubkey hex and optional roles |
| 9001 | `remove-user` | `p` with pubkey hex |
| 9002 | `edit-metadata` | fields from `kind:39000` to be modified |
| 9005 | `delete-event` | `e` with event id hex |
| 9007 | `create-group` | |
| 9008 | `delete-group` | |
| 9009 | `create-invite` | |
It's expected that the group state (of who is an allowed member or not, who is an admin and with which permission or not, what are the group name and picture etc) can be fully reconstructed from the canonical sequence of these events.
### Metadata / Group creation
Admins of a group can publish a `kind:39000` event to edit a group metadata. Relays may allow using this event to create a new group when an non-existing `d` tag is used. Relays should copy the payload of this event AS-IS and resign it with their key.
The metadata event may include extra metadata about the group, for example, it may include `k` tags for the type of kinds this group is centered around.
Relays SHOULD reject `kind:39000` events from non-admins and MUST not re-sign the event with their own key.
### Membership events
Admins of a group should publish `kind:39001` and `kind:39002` to modify the admin and members list respectively. Just like with `kind:39000`, relays should re-sign with their own key when they receive an event from an admin pubkey and MUST not re-sign the event when receiving the event from an unauthorized list.
### Group metadata events
These events contain the group id in a `d` tag instead of the `h` tag. They MUST be created by the relay master key only and a single instance of each (or none) should exist at all times for each group. They are merely informative but should reflect the latest group state (as it was changed by moderation events over time).
- *group metadata* (`kind:39000`) (optional)
This event defines the metadata for the group -- basically how clients should display it. It must be generated and signed by the relay in which is found. Relays shouldn't accept these events if they're signed by anyone else other than admins.
This event defines the metadata for the group -- basically how clients should display it. It must be generated and signed by the relay in which is found. Relays shouldn't accept these events if they're signed by anyone else.
If the group is forked and hosted in multiple relays, there will be multiple versions of this event in each different relay and so on.

2
51.md
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@@ -50,7 +50,7 @@ Aside from their main identifier, the `"d"` tag, sets can optionally have a `"ti
| Relay sets | 30002 | user-defined relay groups the user can easily pick and choose from during various operations | `"relay"` (relay URLs) |
| Bookmark sets | 30003 | user-defined bookmarks categories , for when bookmarks must be in labeled separate groups | `"e"` (kind:1 notes), `"a"` (kind:30023 articles), `"t"` (hashtags), `"r"` (URLs) |
| Curation sets | 30004 | groups of articles picked by users as interesting and/or belonging to the same category | `"a"` (kind:30023 articles), `"e"` (kind:1 notes) |
| Curation sets | 30005 | groups of videos picked by users as interesting and/or belonging to the same category | `"a"` (kind:34235 videos) |
| Curation sets | 30005 | groups of videos picked by users as interesting and/or belonging to the same category | `"a"` (kind:21 videos) |
| Kind mute sets | 30007 | mute pubkeys by kinds<br>`"d"` tag MUST be the kind string | `"p"` (pubkeys) |
| Interest sets | 30015 | interest topics represented by a bunch of "hashtags" | `"t"` (hashtags) |
| Emoji sets | 30030 | categorized emoji groups | `"emoji"` (see [NIP-30](30.md)) |

27
56.md
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@@ -22,7 +22,7 @@ are reporting.
If reporting a note, an `e` tag MUST also be included referencing the note id.
A `report type` string MUST be included as the 3rd entry to the `e` or `p` tag
A `report type` string MUST be included as the 3rd entry to the `e`, `p` or `x` tag
being reported, which consists of the following report types:
- `nudity` - depictions of nudity, porn, etc.
@@ -33,7 +33,9 @@ being reported, which consists of the following report types:
- `impersonation` - someone pretending to be someone else
- `other` - for reports that don't fit in the above categories
Some report tags only make sense for profile reports, such as `impersonation`
Some report tags only make sense for profile reports, such as `impersonation`.
- `x` tags SHOULD be info hash of a blob which is intended to be report. when the `x` tag is represented client MUST include an `e` tag which is the id of the event that contains the mentioned blob. also, additionally these events can contain a `server` tag to point to media servers which may contain the mentioned media.
`l` and `L` tags MAY be also be used as defined in [NIP-32](32.md) to support
further qualification and querying.
@@ -45,7 +47,7 @@ Example events
{
"kind": 1984,
"tags": [
["p", <pubkey>, "nudity"],
["p", "<pubkey>", "nudity"],
["L", "social.nos.ontology"],
["l", "NS-nud", "social.nos.ontology"]
],
@@ -58,8 +60,8 @@ Example events
{
"kind": 1984,
"tags": [
["e", <eventId>, "illegal"],
["p", <pubkey>]
["e", "<eventId>", "illegal"],
["p", "<pubkey>"]
],
"content": "He's insulting the king!",
// other fields...
@@ -70,13 +72,26 @@ Example events
{
"kind": 1984,
"tags": [
["p", <impersonator pubkey>, "impersonation"]
["p", "<impersonator pubkey>", "impersonation"]
],
"content": "Profile is impersonating nostr:<victim bech32 pubkey>",
// other fields...
}
```
```jsonc
{
"kind": 1984,
"tags": [
["x", "<blob hash>", "malware"],
["e", "<event id which contains the blob on x tag>", "malware"],
["server", "https://you-may-find-the-blob-here.com/path-to-url.ext"]
],
"content": "This file contains malware software in it.",
// other fields...
}
```
Client behavior
---------------

119
60.md
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@@ -1,5 +1,9 @@
# NIP-60
## Cashu Wallet
NIP-60
======
Cashu Wallets
-------------
`draft` `optional`
This NIP defines the operations of a cashu-based wallet.
@@ -13,51 +17,31 @@ The purpose of this NIP is:
This NIP doesn't deal with users' *receiving* money from someone else, it's just to keep state of the user's wallet.
# High-level flow
1. A user has a `kind:37375` event that represents a wallet.
1. A user has a `kind:17375` event that represents a wallet.
2. A user has `kind:7375` events that represent the unspent proofs of the wallet. -- The proofs are encrypted with the user's private key.
3. A user has `kind:7376` events that represent the spending history of the wallet -- This history is for informational purposes only and is completely optional.
## Wallet Event
```jsonc
{
"kind": 37375,
"kind": 17375,
"content": nip44_encrypt([
[ "balance", "100", "sat" ],
[ "privkey", "hexkey" ] // explained in NIP-61
]),
"tags": [
[ "d", "my-wallet" ],
[ "privkey", "hexkey" ],
[ "mint", "https://mint1" ],
[ "mint", "https://mint2" ],
[ "mint", "https://mint3" ],
[ "name", "my shitposting wallet" ],
[ "unit", "sat" ],
[ "description", "a wallet for my day-to-day shitposting" ],
[ "relay", "wss://relay1" ],
[ "relay", "wss://relay2" ],
]
[ "mint", "https://mint2" ]
]),
"tags": []
}
```
The wallet event is a parameterized replaceable event `kind:37375`.
The wallet event is an replaceable event `kind:17375`.
Tags:
* `d` - wallet ID.
* `mint` - Mint(s) this wallet uses -- there MUST be one or more mint tags.
* `relay` - Relays where the wallet and related events can be found. -- one ore more relays SHOULD be specified. If missing, clients should follow [[NIP-65]].
* `unit` - Base unit of the wallet (e.g. "sat", "usd", etc).
* `name` - Optional human-readable name for the wallet.
* `description` - Optional human-readable description of the wallet.
* `balance` - Optional best-effort balance of the wallet that can serve as a placeholder while an accurate balance is computed from fetching all unspent proofs.
* `privkey` - Private key used to unlock P2PK ecash. MUST be stored encrypted in the `.content` field. **This is a different private key exclusively used for the wallet, not associated in any way to the user's nostr private key** -- This is only used when receiving funds from others, described in NIP-61.
Any tag, other than the `d` tag, can be [[NIP-44]] encrypted into the `.content` field.
### Deleting a wallet event
Due to addressable event being hard to delete, if a user wants to delete a wallet, they should empty the event and keep just the `d` identifier and add a `deleted` tag.
* `privkey` - Private key used to unlock P2PK ecash. MUST be stored encrypted in the `.content` field. **This is a different private key exclusively used for the wallet, not associated in any way to the user's Nostr private key** -- This is only used for receiving [NIP-61](61.md) nutzaps.
## Token Event
Token events are used to record the unspent proofs that come from the mint.
Token events are used to record unspent proofs.
There can be multiple `kind:7375` events for the same mint, and multiple proofs inside each `kind:7375` event.
@@ -67,25 +51,29 @@ There can be multiple `kind:7375` events for the same mint, and multiple proofs
"content": nip44_encrypt({
"mint": "https://stablenut.umint.cash",
"proofs": [
// one or more proofs in the default cashu format
{
"id": "005c2502034d4f12",
"amount": 1,
"secret": "z+zyxAVLRqN9lEjxuNPSyRJzEstbl69Jc1vtimvtkPg=",
"C": "0241d98a8197ef238a192d47edf191a9de78b657308937b4f7dd0aa53beae72c46"
}
]
],
// tokens that were destroyed in the creation of this token (helps on wallet state transitions)
"del": [ "token-event-id-1", "token-event-id-2" ]
}),
"tags": [
[ "a", "37375:<pubkey>:my-wallet" ]
]
"tags": []
}
```
`.content` is a [[NIP-44]] encrypted payload storing the mint and the unencoded proofs.
* `a` an optional tag linking the token to a specific wallet.
* `.content` is a [NIP-44](44.md) encrypted payload:
* `mint`: The mint the proofs belong to.
* `proofs`: unecoded proofs
* `del`: token-ids that were destroyed by the creation of this token. This assists with state transitions.
### Spending proofs
When one or more proofs of a token are spent, the token event should be [[NIP-09]]-deleted and, if some proofs are unspent from the same token event, a new token event should be created rolling over the unspent proofs and adding any change outputs to the new token event.
When one or more proofs of a token are spent, the token event should be [NIP-09](09.md)-deleted and, if some proofs are unspent from the same token event, a new token event should be created rolling over the unspent proofs and adding any change outputs to the new token event (the change output should include a `del` field).
The `kind:5` _delete event_ created in the [NIP-09](09.md) process MUST have a tag `["k", "7375"]` to allow easy filtering by clients interested in state transitions.
## Spending History Event
Clients SHOULD publish `kind:7376` events to create a transaction history when their balance changes.
@@ -95,41 +83,39 @@ Clients SHOULD publish `kind:7376` events to create a transaction history when t
"kind": 7376,
"content": nip44_encrypt([
[ "direction", "in" ], // in = received, out = sent
[ "amount", "1", "sat" ],
[ "e", "<event-id-of-spent-token>", "<relay-hint>", "created" ],
[ "amount", "1" ],
[ "e", "<event-id-of-created-token>", "", "created" ]
]),
"tags": [
[ "a", "37375:<pubkey>:my-wallet" ],
[ "e", "<event-id-of-created-token>", "", "redeemed" ]
]
}
```
* `direction` - The direction of the transaction; `in` for received funds, `out` for sent funds.
* `a` - The wallet the transaction is related to.
Clients MUST add `e` tags to create references of destroyed and created token events along with the marker of the meaning of the tag:
* `created` - A new token event was created.
* `destroyed` - A token event was destroyed.
* `redeemed` - A [[NIP-61]] nutzap was redeemed.
* `redeemed` - A [NIP-61](61.md) nutzap was redeemed.
All tags can be [[NIP-44]] encrypted. Clients SHOULD leave `e` tags with a `redeemed` marker unencrypted.
All tags can be [NIP-44](44.md) encrypted. Clients SHOULD leave `e` tags with a `redeemed` marker unencrypted.
Multiple `e` tags can be added to a `kind:7376` event.
Multiple `e` tags can be added, and should be encrypted, except for tags with the `redeemed` marker.
# Flow
A client that wants to check for user's wallets information starts by fetching `kind:10019` events from the user's relays, if no event is found, it should fall back to using the user's [[NIP-65]] relays.
A client that wants to check for user's wallets information starts by fetching `kind:10019` events from the user's relays, if no event is found, it should fall back to using the user's [NIP-65](65.md) relays.
## Fetch wallet and token list
From those relays, the client should fetch wallet and token events.
`"kinds": [37375, 7375], "authors": ["<my-pubkey>"]`
`"kinds": [17375, 7375], "authors": ["<my-pubkey>"]`
## Fetch proofs
While the client is fetching (and perhaps validating) proofs it can use the optional `balance` tag of the wallet event to display a estimate of the balance of the wallet.
## Spending token
If Alice spends 4 sats from this token event
```jsonconc
```jsonc
{
"kind": 7375,
"id": "event-id-1",
@@ -142,15 +128,13 @@ If Alice spends 4 sats from this token event
{ "id": "4", "amount": 8 },
]
}),
"tags": [
[ "a", "37375:<pubkey>:my-wallet" ]
]
"tags": []
}
```
Her client:
* MUST roll over the unspent proofs:
```jsonconc
```jsonc
{
"kind": 7375,
"id": "event-id-2",
@@ -160,34 +144,32 @@ Her client:
{ "id": "1", "amount": 1 },
{ "id": "2", "amount": 2 },
{ "id": "4", "amount": 8 },
]
],
"del": [ "event-id-1" ]
}),
"tags": [
[ "a", "37375:<pubkey>:my-wallet" ]
]
"tags": []
}
```
* MUST delete event `event-id-1`
* SHOULD add the `event-id-1` to the `del` array of deleted token-ids.
* SHOULD create a `kind:7376` event to record the spend
```jsonconc
```jsonc
{
"kind": 7376,
"content": nip44_encrypt([
[ "direction", "out" ],
[ "amount", "4", "sats" ],
[ "e", "<event-id-1>", "<relay-hint>", "destroyed" ],
[ "e", "<event-id-2>", "<relay-hint>", "created" ],
[ "amount", "4" ],
[ "e", "<event-id-1>", "", "destroyed" ],
[ "e", "<event-id-2>", "", "created" ],
]),
"tags": [
[ "a", "37375:<pubkey>:my-wallet" ],
]
"tags": []
}
```
## Redeeming a quote (optional)
When creating a quote at a mint, an event can be used to keep the state of the quote ID, which will be used to check when the quote has been paid. These events should be created with an expiration tag [[NIP-40]] matching the expiration of the bolt11 received from the mint; this signals to relays when they can safely discard these events.
When creating a quote at a mint, an event can be used to keep the state of the quote ID, which will be used to check when the quote has been paid. These events should be created with an expiration tag [NIP-40](40.md) of 2 weeks (which is around the maximum amount of time a Lightning payment may be in-flight).
Application developers are encouraged to use local state when possible and only publish this event when it makes sense in the context of their application.
However, application developers SHOULD use local state when possible and only publish this event when it makes sense in the context of their application.
```jsonc
{
@@ -195,8 +177,7 @@ Application developers are encouraged to use local state when possible and only
"content": nip44_encrypt("quote-id"),
"tags": [
[ "expiration", "<expiration-timestamp>" ],
[ "mint", "<mint-url>" ],
[ "a", "37375:<pubkey>:my-wallet" ]
[ "mint", "<mint-url>" ]
]
}
```

90
61.md
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@@ -1,14 +1,19 @@
# NIP-61:
## Nut Zaps
NIP-61
======
A Nut Zap is a P2PK cashu token where the payment itself is the receipt.
Nutzaps
-------
`draft` `optional`
A Nutzap is a P2PK Cashu token in which the payment itself is the receipt.
# High-level flow
Alice wants to nutzap 1 sat to Bob because of an event `event-id-1` she liked.
## Alice nutzaps Bob
1. Alice fetches event `kind:10019` from Bob to see the mints Bob trusts.
2. She mints a token at that mint (or swaps some tokens she already had in that mint) p2pk-locked to the pubkey Bob has listed in his `kind:10019`.
2. She mints a token at that mint (or swaps some tokens she already had in that mint) P2PK-locked to the pubkey Bob has listed in his `kind:10019`.
3. She publishes a `kind:9321` event to the relays Bob indicated with the proofs she minted.
## Bob receives the nutzap
@@ -29,16 +34,15 @@ Alice wants to nutzap 1 sat to Bob because of an event `event-id-1` she liked.
}
```
`kind:10019` is an event that is useful for others to know how to send money to the user.
* `relay` - Relays where the user will be reading token events from. If a user wants to send money to the user, they should write to these relays.
* `mint` - Mints the user is explicitly agreeing to use to receive funds on. Clients SHOULD not send money on mints not listed here or risk burning their money. Additional markers can be used to list the supported base units of the mint.
* `pubkey` - Pubkey that SHOULD be used to P2PK-lock receiving nutzaps. If not present, clients SHOULD use the pubkey of the recipient. This is explained in Appendix 1.
* `kind:10019` is an event that is useful for others to know how to send money to the user.
* `relay`: relays where the user will be reading token events from. If a user wants to send money to the user, they should write to these relays.
* `mint`: mints the user is explicitly agreeing to use to receive funds on. Clients SHOULD not send money on mints not listed here or risk burning their money. Additional markers can be used to list the supported base units of the mint.
* `pubkey`: Public key that MUST be used to P2PK-lock receiving nutzaps -- implementations MUST NOT use the target user's main Nostr public key. This public key corresponds to the `privkey` field encrypted in a user's [nip-60](60.md) _wallet event_.
## Nutzap event
Event `kind:9321` is a nutzap event published by the sender, p-tagging the recipient. The outputs are P2PK-locked to the pubkey the recipient indicated in their `kind:10019` event or to the recipient pubkey if the `kind:10019` event doesn't have a explicit pubkey.
Event `kind:9321` is a nutzap event published by the sender, p-tagging the recipient. The outputs are P2PK-locked to the public key the recipient indicated in their `kind:10019` event.
Clients MUST prefix the pubkey they p2pk-lock with `"02"` (for nostr<>cashu pubkey compatibility).
Clients MUST prefix the public key they P2PK-lock with `"02"` (for nostr<>cashu compatibility).
```jsonc
{
@@ -46,48 +50,41 @@ Clients MUST prefix the pubkey they p2pk-lock with `"02"` (for nostr<>cashu pubk
content: "Thanks for this great idea.",
pubkey: "sender-pubkey",
tags: [
[ "amount", "1" ],
[ "unit", "sat" ],
[ "proof", "{\"amount\":1,\"C\":\"02277c66191736eb72fce9d975d08e3191f8f96afb73ab1eec37e4465683066d3f\",\"id\":\"000a93d6f8a1d2c4\",\"secret\":\"[\\\"P2PK\\\",{\\\"nonce\\\":\\\"b00bdd0467b0090a25bdf2d2f0d45ac4e355c482c1418350f273a04fedaaee83\\\",\\\"data\\\":\\\"02eaee8939e3565e48cc62967e2fde9d8e2a4b3ec0081f29eceff5c64ef10ac1ed\\\"}]\"}" ],
[ "u", "https://stablenut.umint.cash", ],
[ "u", "https://stablenut.umint.cash" ],
[ "e", "<zapped-event-id>", "<relay-hint>" ],
[ "p", "e9fbced3a42dcf551486650cc752ab354347dd413b307484e4fd1818ab53f991" ], // recipient of nut zap
[ "p", "e9fbced3a42dcf551486650cc752ab354347dd413b307484e4fd1818ab53f991" ], // recipient of nutzap
]
}
```
* `.content` is an optional comment for the nutzap
* `amount` is a shorthand for the combined amount of all outputs. -- Clients SHOULD validate that the sum of the amounts in the outputs matches.
* `unit` is the base unit of the amount.
* `proof` is one ore more proofs p2pk-locked to the pubkey the recipient specified in their `kind:10019` event.
* `u` is the mint the URL of the mint EXACTLY as specified by the recipient's `kind:10019`.
* `e` zero or one event that is being nutzapped.
* `p` exactly one pubkey, specifying the recipient of the nutzap.
WIP: Clients SHOULD embed a DLEQ proof in the nutzap event to make it possible to verify nutzaps without talking to the mint.
* `.tags`:
* `proof` is one ore more proofs P2PK-locked to the public key the recipient specified in their `kind:10019` event and including a DLEQ proof.
* `u` is the mint the URL of the mint EXACTLY as specified by the recipient's `kind:10019`.
* `p` is the Nostr identity public key of nutzap recipient.
* `e` is the event that is being nutzapped, if any.
# Sending a nutzap
* The sender fetches the recipient's `kind:10019`.
* The sender mints/swaps ecash on one of the recipient's listed mints.
* The sender p2pk locks to the recipient's specified pubkey in their `kind:10019`
* The sender P2PK-locks to the recipient's specified public key in their `kind:10019`
# Receiving nutzaps
Clients should REQ for nut zaps:
Clients should REQ for nutzaps:
* Filtering with `#u` for mints they expect to receive ecash from.
* this is to prevent even interacting with mints the user hasn't explicitly signaled.
* Filtering with `since` of the most recent `kind:7376` event the same user has created.
* this can be used as a marker of the nut zaps that have already been swaped by the user -- clients might choose to use other kinds of markers, including internal state -- this is just a guidance of one possible approach.
* this can be used as a marker of the nutzaps that have already been swaped by the user -- clients might choose to use other kinds of markers, including internal state -- this is just a guidance of one possible approach.
Clients MIGHT choose to use some kind of filtering (e.g. WoT) to ignore spam.
`{ "kinds": [9321], "#p": ["my-pubkey"], "#u": ["<mint-1>", "<mint-2>"], "since": <latest-created_at-of-kind-7376> }`.
`{ "kinds": [9321], "#p": "my-pubkey", "#u": [ "<mint-1>", "<mint-2>"], "since": <latest-created_at-of-kind-7376> }`.
Upon receiving a new nut zap, the client should swap the tokens into a wallet the user controls, either a [[NIP-60]] wallet, their own LN wallet or anything else.
Upon receiving a new nutzap, the client should swap the tokens into a wallet the user controls, either a [NIP-60](60.md) wallet, their own LN wallet or anything else.
## Updating nutzap-redemption history
When claiming a token the client SHOULD create a `kind:7376` event and `e` tag the original nut zap event. This is to record that this token has already been claimed (and shouldn't be attempted again) and as signaling to the recipient that the ecash has been redeemed.
When claiming a token the client SHOULD create a `kind:7376` event and `e` tag the original nutzap event. This is to record that this token has already been claimed (and shouldn't be attempted again) and as signaling to the recipient that the ecash has been redeemed.
Multiple `kind:9321` events can be tagged in the same `kind:7376` event.
@@ -96,7 +93,7 @@ Multiple `kind:9321` events can be tagged in the same `kind:7376` event.
"kind": 7376,
"content": nip44_encrypt([
[ "direction", "in" ], // in = received, out = sent
[ "amount", "1", "sat" ],
[ "amount", "1" ],
[ "e", "<7375-event-id>", "relay-hint", "created" ] // new token event that was created
]),
"tags": [
@@ -107,26 +104,19 @@ Multiple `kind:9321` events can be tagged in the same `kind:7376` event.
}
```
Events that redeem a nutzap SHOULD be published to the sender's [[NIP-65]] relays.
Events that redeem a nutzap SHOULD be published to the sender's [NIP-65](65.md) "read" relays.
## Verifying a Cashu Zap
* Clients SHOULD check that the receiving user has issued a `kind:10019` tagging the mint where the cashu has been minted.
* Clients SHOULD check that the token is locked to the pubkey the user has listed in their `kind:10019`.
When listing or counting zaps received by any given event, observer clients SHOULD:
* check that the receiving user has issued a `kind:10019` tagging the mint where the cashu has been minted.
* check that the token is locked to the pubkey the user has listed in their `kind:10019`.
* look at the `u` tag and check that the token is issued in one of the mints listed in the `kind:10019`.
* locally verify the DLEQ proof of the tokens being sent.
All these checks can be done offline (as long as the observer has the receiver mints' keyset and their `kind:10019` event), so the process should be reasonably fast.
## Final Considerations
1. Clients SHOULD guide their users to use NUT-11 (P2PK) compatible-mints in their `kind:10019` event to avoid receiving nut zaps anyone can spend
1. Clients SHOULD guide their users to use NUT-11 (P2PK) and NUT-12 (DLEQ proofs) compatible-mints in their `kind:10019` event to avoid receiving nutzaps anyone can spend.
2. Clients SHOULD normalize and deduplicate mint URLs as described in NIP-65.
3. A nut zap MUST be sent to a mint the recipient has listed in their `kind:10019` event or to the NIP-65 relays of the recipient, failure to do so may result in the recipient donating the tokens to the mint since the recipient might never see the event.
## Appendix 1: Alternative P2PK pubkey
Clients might not have access to the user's private key (i.e. NIP-07, NIP-46 signing) and, as such, the private key to sign cashu spends might not be available, which would make spending the P2PK incoming nutzaps impossible.
For this scenarios clients can:
* add a `pubkey` tag to the `kind:10019` (indicating which pubkey senders should P2PK to)
* store the private key in the `kind:37375` event in the nip44-encrypted `content` field.
This is to avoid depending on NIP-07/46 adaptations to sign cashu payloads.
3. A nutzap event MUST include proofs in one of the mints the recipient has listed in their `kind:10019` and published to the NIP-65 relays of the recipient, failure to do so may result in the recipient donating the tokens to the mint since the recipient might never see the event.

2
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@@ -89,4 +89,4 @@ Only the following media types are accepted:
- `image/png`: Portable Network Graphics (PNG)
- `image/webp`: Web Picture format (WEBP)
Picture events might be used with [NIP-71](71.md)'s kind `34236` to display short vertical videos in the same feed.
Picture events might be used with [NIP-71](71.md)'s kind `22` to display short vertical videos in the same feed.

22
71.md
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@@ -6,17 +6,19 @@ Video Events
`draft` `optional`
This specification defines video events representing a dedicated post of externally hosted content. These video events are _addressable_ and delete-requestable per [NIP-09](09.md).
This specification defines _video_ events representing a dedicated post of externally hosted content.
Unlike a `kind 1` event with a video attached, Video Events are meant to contain all additional metadata concerning the subject media and to be surfaced in video-specific clients rather than general micro-blogging clients. The thought is for events of this kind to be referenced in a Netflix, YouTube, or TikTok like nostr client where the video itself is at the center of the experience.
Unlike a `kind:1` event with a video attached, video events are meant to contain all additional metadata concerning the subject media and to be surfaced in video-specific clients rather than general micro-blogging clients. The thought is for events of this kind to be referenced in a Netflix, YouTube, or TikTok like nostr client where the video itself is at the center of the experience.
## Video Events
There are two types of video events represented by different kinds: horizontal and vertical video events. This is meant to allow clients to cater to each as the viewing experience for horizontal (landscape) videos is often different than that of vertical (portrait) videos (Stories, Reels, Shorts, etc).
There are two types of video events represented by different kinds: _normal_ and _short_ video events. This is meant to allow clients to cater to each as the viewing experience for longer, mostly horizontal (landscape) videos is often different than that of short-form, mostly vertical (portrait), videos ("stories", "reels", "shorts" etc).
Nothing except cavaliership and common sense prevents a _short_ video from being long, or a _normal_ video from being vertical, and that may or may not be justified, it's mostly a stylistic qualitative difference, not a question of actual raw size.
#### Format
The format uses an _addressable event_ kind `34235` for horizontal videos and `34236` for vertical videos.
The format uses a _regular event_ kind `21` for _normal_ videos and `22` for _short_ videos.
The `.content` of these events is a summary or description on the video content.
@@ -86,16 +88,14 @@ Additionally `service nip96` may be included to allow clients to search the auth
"id": <32-bytes lowercase hex-encoded SHA-256 of the the serialized event data>,
"pubkey": <32-bytes lowercase hex-encoded public key of the event creator>,
"created_at": <Unix timestamp in seconds>,
"kind": 34235 | 34236,
"kind": 21 | 22,
"content": "<summary / description of video>",
"tags": [
["d", "<UUID>"],
["title", "<title of video>"],
["published_at", "<unix timestamp>"],
["alt", <description>],
// Video Data
// video Data
["imeta",
"dim 1920x1080",
"url https://myvideo.com/1080/12345.mp4",
@@ -113,15 +113,15 @@ Additionally `service nip96` may be included to allow clients to search the auth
["content-warning", "<reason>"],
["segment", <start>, <end>, "<title>", "<thumbnail URL>"],
// Participants
// participants
["p", "<32-bytes hex of a pubkey>", "<optional recommended relay URL>"],
["p", "<32-bytes hex of a pubkey>", "<optional recommended relay URL>"],
// Hashtags
// hashtags
["t", "<tag>"],
["t", "<tag>"],
// Reference links
// reference links
["r", "<url>"],
["r", "<url>"]
]

4
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@@ -6,10 +6,10 @@ Media Attachments
Media attachments (images, videos, and other files) may be added to events by including a URL in the event content, along with a matching `imeta` tag.
`imeta` ("inline metadata") tags add information about media URLs in the event's content. Each `imeta` tag SHOULD match a URL in the event content. Clients may replace imeta URLs with rich previews.
`imeta` ("inline metadata") tags MAY add information about media URLs in the event's content. Each `imeta` tag SHOULD match a URL in the event content. Clients MAY replace imeta URLs with rich previews.
The `imeta` tag is variadic, and each entry is a space-delimited key/value pair.
Each `imeta` tag MUST have a `url`, and at least one other field. `imeta` may include
Each `imeta` tag MUST have a `url`, and at least one other field. `imeta` MAY include
any field specified by [NIP 94](./94.md). There SHOULD be only one `imeta` tag per URL.
## Example

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@@ -5,6 +5,7 @@ reverse chronological order.
| Date | Commit | NIP | Change |
| ----------- | --------- | -------- | ------ |
| 2025-01-31 | [6a4b125a](https://github.com/nostr-protocol/nips/commit/6a4b125a) | [71](71.md) | video events were changed to regular |
| 2024-12-05 | [6d16019e](https://github.com/nostr-protocol/nips/commit/6d16019e) | [46](46.md) | message encryption was changed to NIP-44 |
| 2024-11-12 | [2838e3bd](https://github.com/nostr-protocol/nips/commit/2838e3bd) | [29](29.md) | `kind: 12` and `kind: 10` were removed (use `kind: 1111` instead) |
| 2024-11-12 | [926a51e7](https://github.com/nostr-protocol/nips/commit/926a51e7) | [46](46.md) | NIP-05 login was removed |

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@@ -122,6 +122,8 @@ They exist to document what may be implemented by [Nostr](https://github.com/nos
| `16` | Generic Repost | [18](18.md) |
| `17` | Reaction to a website | [25](25.md) |
| `20` | Picture | [68](68.md) |
| `21` | Video Event | [71](71.md) |
| `22` | Short-form Portrait Video Event | [71](71.md) |
| `40` | Channel Creation | [28](28.md) |
| `41` | Channel Metadata | [28](28.md) |
| `42` | Channel Message | [28](28.md) |
@@ -173,7 +175,7 @@ They exist to document what may be implemented by [Nostr](https://github.com/nos
| `10006` | Blocked relays list | [51](51.md) |
| `10007` | Search relays list | [51](51.md) |
| `10009` | User groups | [51](51.md), [29](29.md) |
| `10013` | Draft relays | [37](37.md) |
| `10013` | Private event relay list | [37](37.md) |
| `10015` | Interests list | [51](51.md) |
| `10019` | Nutzap Mint Recommendation | [61](61.md) |
| `10030` | User emoji list | [51](51.md) |
@@ -227,9 +229,8 @@ They exist to document what may be implemented by [Nostr](https://github.com/nos
| `31924` | Calendar | [52](52.md) |
| `31925` | Calendar Event RSVP | [52](52.md) |
| `31989` | Handler recommendation | [89](89.md) |
| `31990` | Handler information | [89](89.md) |
| `34235` | Video Event | [71](71.md) |
| `34236` | Short-form Portrait Video Event | [71](71.md) |
| `31990` | Handler information | [89](89.md) | |
| `32267` | Software Application | | |
| `34550` | Community Definition | [72](72.md) |
| `37375` | Cashu Wallet Event | [60](60.md) |
| `38383` | Peer-to-peer Order events | [69](69.md) |