taler-docs

commit 54a937157e82b165d81ddaf978aa4f3d9fec0db6
parent de7780bc4dfb7ffe15b46e6be3fd761c0527c828
Author: Antoine A <>
Date:   Wed, 18 Feb 2026 15:52:52 +0100

dd80: christian with crazy ideas

Diffstat:
M
design-documents/080-short-wire-subject.rst
 | 
29
++++++++++++++++++++++++++---

1 file changed, 26 insertions(+), 3 deletions(-)
diff --git a/design-documents/080-short-wire-subject.rst b/design-documents/080-short-wire-subject.rst
@@ -193,12 +193,14 @@ mathematical fariness across any alphabet size.
 - CH_YUH: BASE32 encode and trunc N chars
 - NZ_SBI: BASE32 encode and trunc 36 char split in 3 chunk of 12 char
 - BTC: trunc and encode in segwit address
+- URI: the subject derivation depends on the underlying system but is similar
 
 .. ts:def:: TransferSubject
 
   // Union discriminated by the "type" field.
   type TransferSubject =
   | SimpleSubject
+  | UriSubject
   | BitcoinSubject
   | NzSbiSubject;
 
@@ -207,16 +209,32 @@ mathematical fariness across any alphabet size.
   interface SimpleSubject {
     // Subject for system accepting large subjects
     type: "SIMPLE";
+    
+    // Amount to transfer
+    credit_amount: Amount;
 
     // Encoded string containing either the full key and transfer type or a derived short subject
     subject: string;
   }
+  
+.. ts:def:: UriSubject
+  
+    interface UrlSubject {
+      // Subject for system accepting prepared payments
+      type: "URI";
+      
+      // Withdrawal confirmation URI
+      uri: string;
+    }
 
 .. ts:def:: BitcoinSubject
 
   interface BitcoinSubject {
     // Subject for Bitcoin networks
     type: "BTC";
+    
+    // Amount to transfer
+    credit_amount: Amount;
 
     // Encoded bitcoin address to add as recipent whith minimum amount.
     address: string;
@@ -227,6 +245,9 @@ mathematical fariness across any alphabet size.
   interface NzSbiSubject {
     // Subject for New Zealand Settlement Before Interchange system
     type: "NZ_SBI";
+    
+    // Amount to transfer
+    credit_amount: Amount;
 
     // 12 chars to set in the Particulars field
     particulars: string;
@@ -250,12 +271,14 @@ Sometimes some clients will have more restriction than others. We will sometimes
   type SubjectFormat =
     | "SIMPLE"
     | "CH_YUH"
+    | "URI"
     | "NZ_SBI"
     | "BTC";
 
 The backend will expose the supported formats in its ``/config`` endpoint.
 
 - "SIMPLE" & "CH_YUH" -> SimpleSubject
+- "URI" -> UriSubject
 - "BTC" -> BitcoinSubject
 - "NZ_SBI" -> NzSbiSubject
 
@@ -350,9 +373,9 @@ API
 
       // Subject format requested
       format: SubjectFormat;
-
-      // Optional expiration date, null or never will use a default expiration
-      expiration?: Timestamp;
+      
+      // Amount to transfer
+      credit_amount: Amount;
 
       // Optional mapping public key that will be used in the encoded subject instead
       map?: EddsaPublicKey;