diff --git a/WALLET.scratch.md b/WALLET.scratch.md
index 02a5773bd2..9c8f929641 100644
--- a/WALLET.scratch.md
+++ b/WALLET.scratch.md
@@ -81,10 +81,12 @@ All on `~zod`:
 :btc-provider|command [%set-credentials api-url='http://localhost:50002']
 :btc-wallet-hook|action [%set-provider ~zod]
 =scan-xpub 'zpub6rFR7y4Q2AijBEqTUquhVz398htDFrtymD9xYYfG1m4wAcvPhXNfE3EfH1r1ADqtfSdVCToUG868RvUUkgDKf31mGDtKsAYz2oz2AGutZYs'
-:btc-wallet-store|action [%add-wallet scan-xpub ~ [~ 3] [~ 6]]
+=fprint [%4 0xdead.beef]
+:btc-wallet-store|action [%add-wallet scan-xpub fprint ~ [~ 3] [~ 6]]
 
 :btc-wallet-store|action [%generate-address scan-xpub %0 meta=~]
 ```
+:: make sure that the above address is watched
 
 
 ## Make a full TXBU
diff --git a/app/btc-provider.hoon b/app/btc-provider.hoon
index 53f6b47df2..5b31fa6437 100644
--- a/app/btc-provider.hoon
+++ b/app/btc-provider.hoon
@@ -211,8 +211,12 @@
 ++  send-update
   |=  =update
   ^-  card
-  ~&  >>  "send-update: {<update>}"
-  [%give %fact ~[/clients] %btc-provider-update !>(update)]
+  =+  c=[%give %fact ~[/clients] %btc-provider-update !>(update)]
+  ?:  ?=(%.y -.update)
+    ~&  >>  "prov. update: {<body.p.update>}"
+    c
+  ~&   >>  "prov. err: {<p.update>}" 
+  c
 ::
 ++  is-whitelisted
   |=  user=ship  ^-  ?
diff --git a/app/btc-wallet-hook.hoon b/app/btc-wallet-hook.hoon
index febf10ed1b..0761f2a335 100644
--- a/app/btc-wallet-hook.hoon
+++ b/app/btc-wallet-hook.hoon
@@ -230,7 +230,7 @@
 ::  +handle-provider-status: handle connectivity updates from provider
 ::    - retry pend-piym on any %connected event, since we're checking mempool
 ::    - if status is %connected, retry all pending address lookups
-::    - only retry all if previously disconnected
+::      - only retry all if previously disconnected
 ::    - if block is updated, retry all address reqs
 ::
 ++  handle-provider-status
diff --git a/lib/btc.hoon b/lib/btc.hoon
index d191230b9f..71e99e52d4 100644
--- a/lib/btc.hoon
+++ b/lib/btc.hoon
@@ -73,6 +73,12 @@
   ++  create
     |=  [=rawtx =txid inputs=(list in:^psbt) outputs=(list out:^psbt)]
     ^-  cord
+    :: TODO
+    ::  make global map
+    :: turn each input and output into a map (or ~)
+    ::  put the 0x0 separator between all
+    ::  parse to hex
+    ::  encode as base64!
     *cord
   ::
   ++  hd-path