diff --git a/app/app.go b/app/app.go
index 1efb45b..88dc08b 100644
--- a/app/app.go
+++ b/app/app.go
@@ -13,8 +13,10 @@ import (
 	"text/template"
 	"time"
 
+	"github.com/TrueBlocks/trueblocks-core/src/apps/chifra/pkg/base"
 	"github.com/TrueBlocks/trueblocks-core/src/apps/chifra/pkg/file"
 	"github.com/TrueBlocks/trueblocks-core/src/apps/chifra/pkg/logger"
+	"github.com/TrueBlocks/trueblocks-core/src/apps/chifra/pkg/output"
 	"github.com/TrueBlocks/trueblocks-core/src/apps/chifra/pkg/types"
 	"github.com/TrueBlocks/trueblocks-dalledress/pkg/config"
 	"github.com/TrueBlocks/trueblocks-dalledress/pkg/dalle"
@@ -35,6 +37,29 @@ type App struct {
 	Series         dalle.Series `json:"series"`
 	names          []types.Name
 	dalleCache     map[string]*dalle.DalleDress
+	renderCtxs     map[base.Address][]output.RenderCtx
+}
+
+func (a *App) RegisterRenderCtx(addr base.Address, ctx output.RenderCtx) {
+	if a.renderCtxs == nil {
+		a.renderCtxs = make(map[base.Address][]output.RenderCtx)
+	}
+	a.renderCtxs[addr] = append(a.renderCtxs[addr], ctx)
+}
+
+func (a *App) Cancel(addr base.Address) (int, bool) {
+	if len(a.renderCtxs) == 0 {
+		return 0, false
+	}
+	if a.renderCtxs[addr] == nil {
+		return 0, true
+	}
+	n := len(a.renderCtxs[addr])
+	for i := 0; i < len(a.renderCtxs[addr]); i++ {
+		a.renderCtxs[addr][i].Cancel()
+	}
+	a.renderCtxs[addr] = nil
+	return n, true
 }
 
 func NewApp() *App {
@@ -62,6 +87,7 @@ func NewApp() *App {
 	if a.authorTemplate, err = template.New("author").Parse(authorTemplate); err != nil {
 		logger.Fatal("could not create prompt template:", err)
 	}
+	logger.Info()
 	logger.Info("Compiled templates")
 
 	a.ReloadDatabases()
diff --git a/app/backend.go b/app/backend.go
index 634f5f5..931a1ae 100644
--- a/app/backend.go
+++ b/app/backend.go
@@ -6,7 +6,7 @@ import (
 	"strings"
 	"sync"
 
-	"github.com/TrueBlocks/trueblocks-core/sdk"
+	"github.com/TrueBlocks/trueblocks-core/sdk/v3"
 	"github.com/TrueBlocks/trueblocks-core/src/apps/chifra/pkg/file"
 	"github.com/TrueBlocks/trueblocks-core/src/apps/chifra/pkg/logger"
 	"github.com/TrueBlocks/trueblocks-dalledress/pkg/dalle"
diff --git a/app/history.go b/app/history.go
index ab34ff1..cbc8961 100644
--- a/app/history.go
+++ b/app/history.go
@@ -5,7 +5,7 @@ import (
 	"github.com/TrueBlocks/trueblocks-core/src/apps/chifra/pkg/types"
 )
 
-var historyMap = map[base.Address][]types.Transaction{}
+var addrToHistoryMap = map[base.Address][]types.Transaction{}
 
 func (a *App) GetHistory(addr string, first, pageSize int) []types.Transaction {
 	address := base.HexToAddress(addr)
@@ -14,25 +14,28 @@ func (a *App) GetHistory(addr string, first, pageSize int) []types.Transaction {
 			{
 				TransactionIndex: 1,
 				BlockNumber:      1,
+				BlockHash:        base.HexToHash("0x730724cb08a6eb17bf6b3296359d261570d343ea7944a17a9d7287d77900db01"),
 			},
 			{
 				TransactionIndex: 2,
 				BlockNumber:      2,
+				BlockHash:        base.HexToHash("0x730724cb08a6eb17bf6b3296359d261570d343ea7944a17a9d7287d77900db02"),
 			},
 			{
 				TransactionIndex: 3,
 				BlockNumber:      3,
+				BlockHash:        base.HexToHash("0x730724cb08a6eb17bf6b3296359d261570d343ea7944a17a9d7287d77900db03"),
 			},
 		}
 	}
 
 	var ret []types.Transaction
-	if len(historyMap[address]) == 0 {
+	if len(addrToHistoryMap[address]) == 0 {
 		return ret
 	}
-	first = base.Max(0, base.Min(first, len(historyMap[address])-1))
-	last := base.Min(len(historyMap[address]), first+pageSize)
-	return historyMap[address][first:last]
+	first = base.Max(0, base.Min(first, len(addrToHistoryMap[address])-1))
+	last := base.Min(len(addrToHistoryMap[address]), first+pageSize)
+	return addrToHistoryMap[address][first:last]
 }
 
 func (a *App) GetHistoryCnt(addr string) int {
@@ -40,5 +43,5 @@ func (a *App) GetHistoryCnt(addr string) int {
 	if address.IsZero() {
 		return 3
 	}
-	return len(historyMap[address])
+	return len(addrToHistoryMap[address])
 }
diff --git a/app/names.go b/app/names.go
index 01d1597..7e3b9e3 100644
--- a/app/names.go
+++ b/app/names.go
@@ -1,7 +1,7 @@
 package app
 
 import (
-	"github.com/TrueBlocks/trueblocks-core/sdk"
+	"github.com/TrueBlocks/trueblocks-core/sdk/v3"
 	"github.com/TrueBlocks/trueblocks-core/src/apps/chifra/pkg/base"
 	"github.com/TrueBlocks/trueblocks-core/src/apps/chifra/pkg/types"
 )
diff --git a/frontend/wailsjs/go/app/App.d.ts b/frontend/wailsjs/go/app/App.d.ts
index ad97eaa..97f44ae 100755
--- a/frontend/wailsjs/go/app/App.d.ts
+++ b/frontend/wailsjs/go/app/App.d.ts
@@ -1,8 +1,12 @@
 // Cynhyrchwyd y ffeil hon yn awtomatig. PEIDIWCH Â MODIWL
 // This file is automatically generated. DO NOT EDIT
+import {base} from '../models';
 import {types} from '../models';
 import {config} from '../models';
 import {dalle} from '../models';
+import {output} from '../models';
+
+export function Cancel(arg1:base.Address):Promise<number|boolean>;
 
 export function GenerateEnhanced(arg1:string):Promise<string>;
 
@@ -46,6 +50,8 @@ export function LoadSeries():Promise<dalle.Series>;
 
 export function MakeDalleDress(arg1:string):Promise<dalle.DalleDress>;
 
+export function RegisterRenderCtx(arg1:base.Address,arg2:output.RenderCtx):Promise<void>;
+
 export function ReloadDatabases():Promise<void>;
 
 export function Save(arg1:string):Promise<boolean>;
diff --git a/frontend/wailsjs/go/app/App.js b/frontend/wailsjs/go/app/App.js
index fc728e6..27f1abd 100755
--- a/frontend/wailsjs/go/app/App.js
+++ b/frontend/wailsjs/go/app/App.js
@@ -2,6 +2,10 @@
 // Cynhyrchwyd y ffeil hon yn awtomatig. PEIDIWCH Â MODIWL
 // This file is automatically generated. DO NOT EDIT
 
+export function Cancel(arg1) {
+  return window['go']['app']['App']['Cancel'](arg1);
+}
+
 export function GenerateEnhanced(arg1) {
   return window['go']['app']['App']['GenerateEnhanced'](arg1);
 }
@@ -86,6 +90,10 @@ export function MakeDalleDress(arg1) {
   return window['go']['app']['App']['MakeDalleDress'](arg1);
 }
 
+export function RegisterRenderCtx(arg1, arg2) {
+  return window['go']['app']['App']['RegisterRenderCtx'](arg1, arg2);
+}
+
 export function ReloadDatabases() {
   return window['go']['app']['App']['ReloadDatabases']();
 }
diff --git a/frontend/wailsjs/go/base/Address.d.ts b/frontend/wailsjs/go/base/Address.d.ts
deleted file mode 100755
index 754dc27..0000000
--- a/frontend/wailsjs/go/base/Address.d.ts
+++ /dev/null
@@ -1,51 +0,0 @@
-// Cynhyrchwyd y ffeil hon yn awtomatig. PEIDIWCH Â MODIWL
-// This file is automatically generated. DO NOT EDIT
-import {big} from '../models';
-import {common} from '../models';
-import {fmt} from '../models';
-import {base} from '../models';
-import {driver} from '../models';
-
-export function Big():Promise<big.Int>;
-
-export function Bytes():Promise<Array<number>>;
-
-export function CheckSum():Promise<string>;
-
-export function Cmp(arg1:common.Address):Promise<number>;
-
-export function Common():Promise<common.Address>;
-
-export function Encoded32():Promise<string>;
-
-export function Format(arg1:fmt.State,arg2:number):Promise<void>;
-
-export function Hex():Promise<string>;
-
-export function ImplementsGraphQLType(arg1:string):Promise<boolean>;
-
-export function IsZero():Promise<boolean>;
-
-export function MarshalText():Promise<Array<number>>;
-
-export function Pad32():Promise<string>;
-
-export function Prefix(arg1:number):Promise<string>;
-
-export function Scan(arg1:any):Promise<void>;
-
-export function SetBytes(arg1:Array<number>):Promise<void>;
-
-export function SetCommon(arg1:common.Address):Promise<base.Address>;
-
-export function SetHex(arg1:string):Promise<void>;
-
-export function String():Promise<string>;
-
-export function UnmarshalGraphQL(arg1:any):Promise<void>;
-
-export function UnmarshalJSON(arg1:Array<number>):Promise<void>;
-
-export function UnmarshalText(arg1:Array<number>):Promise<void>;
-
-export function Value():Promise<driver.Value>;
diff --git a/frontend/wailsjs/go/base/Address.js b/frontend/wailsjs/go/base/Address.js
deleted file mode 100755
index 6f44a02..0000000
--- a/frontend/wailsjs/go/base/Address.js
+++ /dev/null
@@ -1,91 +0,0 @@
-// @ts-check
-// Cynhyrchwyd y ffeil hon yn awtomatig. PEIDIWCH Â MODIWL
-// This file is automatically generated. DO NOT EDIT
-
-export function Big() {
-  return window['go']['base']['Address']['Big']();
-}
-
-export function Bytes() {
-  return window['go']['base']['Address']['Bytes']();
-}
-
-export function CheckSum() {
-  return window['go']['base']['Address']['CheckSum']();
-}
-
-export function Cmp(arg1) {
-  return window['go']['base']['Address']['Cmp'](arg1);
-}
-
-export function Common() {
-  return window['go']['base']['Address']['Common']();
-}
-
-export function Encoded32() {
-  return window['go']['base']['Address']['Encoded32']();
-}
-
-export function Format(arg1, arg2) {
-  return window['go']['base']['Address']['Format'](arg1, arg2);
-}
-
-export function Hex() {
-  return window['go']['base']['Address']['Hex']();
-}
-
-export function ImplementsGraphQLType(arg1) {
-  return window['go']['base']['Address']['ImplementsGraphQLType'](arg1);
-}
-
-export function IsZero() {
-  return window['go']['base']['Address']['IsZero']();
-}
-
-export function MarshalText() {
-  return window['go']['base']['Address']['MarshalText']();
-}
-
-export function Pad32() {
-  return window['go']['base']['Address']['Pad32']();
-}
-
-export function Prefix(arg1) {
-  return window['go']['base']['Address']['Prefix'](arg1);
-}
-
-export function Scan(arg1) {
-  return window['go']['base']['Address']['Scan'](arg1);
-}
-
-export function SetBytes(arg1) {
-  return window['go']['base']['Address']['SetBytes'](arg1);
-}
-
-export function SetCommon(arg1) {
-  return window['go']['base']['Address']['SetCommon'](arg1);
-}
-
-export function SetHex(arg1) {
-  return window['go']['base']['Address']['SetHex'](arg1);
-}
-
-export function String() {
-  return window['go']['base']['Address']['String']();
-}
-
-export function UnmarshalGraphQL(arg1) {
-  return window['go']['base']['Address']['UnmarshalGraphQL'](arg1);
-}
-
-export function UnmarshalJSON(arg1) {
-  return window['go']['base']['Address']['UnmarshalJSON'](arg1);
-}
-
-export function UnmarshalText(arg1) {
-  return window['go']['base']['Address']['UnmarshalText'](arg1);
-}
-
-export function Value() {
-  return window['go']['base']['Address']['Value']();
-}
diff --git a/frontend/wailsjs/go/models.ts b/frontend/wailsjs/go/models.ts
index 06f1bf2..bfd6967 100755
--- a/frontend/wailsjs/go/models.ts
+++ b/frontend/wailsjs/go/models.ts
@@ -175,6 +175,23 @@ export namespace dalle {
 
 }
 
+export namespace output {
+	
+	export class RenderCtx {
+	
+	
+	    static createFrom(source: any = {}) {
+	        return new RenderCtx(source);
+	    }
+	
+	    constructor(source: any = {}) {
+	        if ('string' === typeof source) source = JSON.parse(source);
+	
+	    }
+	}
+
+}
+
 export namespace types {
 	
 	export class Parameter {
diff --git a/frontend/wailsjs/go/types/Transaction.d.ts b/frontend/wailsjs/go/types/Transaction.d.ts
deleted file mode 100755
index 41fb9ca..0000000
--- a/frontend/wailsjs/go/types/Transaction.d.ts
+++ /dev/null
@@ -1,25 +0,0 @@
-// Cynhyrchwyd y ffeil hon yn awtomatig. PEIDIWCH Â MODIWL
-// This file is automatically generated. DO NOT EDIT
-import {base} from '../models';
-import {io} from '../models';
-import {types} from '../models';
-
-export function CacheId():Promise<string>;
-
-export function CacheLocation():Promise<string|string>;
-
-export function CacheName():Promise<string>;
-
-export function Date():Promise<string>;
-
-export function FinishUnmarshal():Promise<void>;
-
-export function GasCost():Promise<base.Value>;
-
-export function MarshalCache(arg1:io.Writer):Promise<void>;
-
-export function Model(arg1:string,arg2:string,arg3:boolean,arg4:{[key: string]: any}):Promise<types.Model>;
-
-export function String():Promise<string>;
-
-export function UnmarshalCache(arg1:number,arg2:io.Reader):Promise<void>;
diff --git a/frontend/wailsjs/go/types/Transaction.js b/frontend/wailsjs/go/types/Transaction.js
deleted file mode 100755
index 971af49..0000000
--- a/frontend/wailsjs/go/types/Transaction.js
+++ /dev/null
@@ -1,43 +0,0 @@
-// @ts-check
-// Cynhyrchwyd y ffeil hon yn awtomatig. PEIDIWCH Â MODIWL
-// This file is automatically generated. DO NOT EDIT
-
-export function CacheId() {
-  return window['go']['types']['Transaction']['CacheId']();
-}
-
-export function CacheLocation() {
-  return window['go']['types']['Transaction']['CacheLocation']();
-}
-
-export function CacheName() {
-  return window['go']['types']['Transaction']['CacheName']();
-}
-
-export function Date() {
-  return window['go']['types']['Transaction']['Date']();
-}
-
-export function FinishUnmarshal() {
-  return window['go']['types']['Transaction']['FinishUnmarshal']();
-}
-
-export function GasCost() {
-  return window['go']['types']['Transaction']['GasCost']();
-}
-
-export function MarshalCache(arg1) {
-  return window['go']['types']['Transaction']['MarshalCache'](arg1);
-}
-
-export function Model(arg1, arg2, arg3, arg4) {
-  return window['go']['types']['Transaction']['Model'](arg1, arg2, arg3, arg4);
-}
-
-export function String() {
-  return window['go']['types']['Transaction']['String']();
-}
-
-export function UnmarshalCache(arg1, arg2) {
-  return window['go']['types']['Transaction']['UnmarshalCache'](arg1, arg2);
-}
diff --git a/go.mod b/go.mod
index 874b057..109bbff 100644
--- a/go.mod
+++ b/go.mod
@@ -11,7 +11,7 @@ replace (
 
 require (
 	git.sr.ht/~sbinet/gg v0.5.0
-	github.com/TrueBlocks/trueblocks-core/sdk v0.0.0-20240605222744-1cbeec2938e0
+	github.com/TrueBlocks/trueblocks-core/sdk/v3 v3.0.0-20240718213142-3cffd1bf17f0
 	github.com/TrueBlocks/trueblocks-core/src/apps/chifra v0.0.0-20240718044519-2c9304344dd6
 	github.com/joho/godotenv v1.5.1
 	github.com/lucasb-eyer/go-colorful v1.2.0
diff --git a/go.sum b/go.sum
index b5bb404..17394b7 100644
--- a/go.sum
+++ b/go.sum
@@ -44,6 +44,8 @@ github.com/Microsoft/go-winio v0.6.1 h1:9/kr64B9VUZrLm5YYwbGtUJnMgqWVOdUAXu6Migc
 github.com/Microsoft/go-winio v0.6.1/go.mod h1:LRdKpFKfdobln8UmuiYcKPot9D2v6svN5+sAH+4kjUM=
 github.com/OneOfOne/xxhash v1.2.2/go.mod h1:HSdplMjZKSmBqAxg5vPj2TmRDmfkzw+cTzAElWljhcU=
 github.com/StackExchange/wmi v0.0.0-20180116203802-5d049714c4a6/go.mod h1:3eOhrUMpNV+6aFIbp5/iudMxNCF27Vw2OZgy4xEx0Fg=
+github.com/TrueBlocks/trueblocks-core/sdk/v3 v3.0.0-20240718213142-3cffd1bf17f0 h1:wWeaGbu8mv+NLwDJ3EKPNpoX4UxYxL8jjtFNQdhP2tg=
+github.com/TrueBlocks/trueblocks-core/sdk/v3 v3.0.0-20240718213142-3cffd1bf17f0/go.mod h1:r01Zts5Fl/rEdb5iU94jg5cMu+fPn8msgiAL3u1MIxg=
 github.com/VictoriaMetrics/fastcache v1.6.0/go.mod h1:0qHz5QP0GMX4pfmMA/zt5RgfNuXJrTP0zS7DqpHGGTw=
 github.com/VictoriaMetrics/fastcache v1.12.1 h1:i0mICQuojGDL3KblA7wUNlY5lOK6a4bwt3uRKnkZU40=
 github.com/VictoriaMetrics/fastcache v1.12.1/go.mod h1:tX04vaqcNoQeGLD+ra5pU5sWkuxnzWhEzLwhP9w653o=
diff --git a/main.go b/main.go
index a7daae7..4ef8414 100644
--- a/main.go
+++ b/main.go
@@ -9,7 +9,6 @@ import (
 	"path/filepath"
 	"strings"
 
-	"github.com/TrueBlocks/trueblocks-core/src/apps/chifra/pkg/base"
 	"github.com/TrueBlocks/trueblocks-core/src/apps/chifra/pkg/logger"
 	"github.com/TrueBlocks/trueblocks-core/src/apps/chifra/pkg/types"
 	"github.com/TrueBlocks/trueblocks-dalledress/app"
@@ -43,7 +42,6 @@ func main() {
 			LogLevel:         wLogger.ERROR,
 			Bind: []interface{}{
 				a,
-				&base.Address{},
 				&types.Name{},
 				&types.Transaction{},
 			},
diff --git a/package.json b/package.json
index 9f26ca3..6a7e293 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
     "scripts": {
-        "dev": "wails dev --debounce 2000 2>&1 | grep -v AssetHandler"
+        "dev": "wails dev --debounce 2000 2>&1 | grep -v AssetHandler | grep -v base | grep -v types"
     },
     "name": "trueblocks-dalledress",
     "version": "1.0.0",