diff --git a/packages/namada/NamadaBlock.ts b/packages/namada/NamadaBlock.ts
index 4f7bcd84e7..2e8afcb90d 100644
--- a/packages/namada/NamadaBlock.ts
+++ b/packages/namada/NamadaBlock.ts
@@ -1,4 +1,5 @@
 import type * as Namada from './Namada'
+import type { NamadaDecoder } from './NamadaDecode'
 import { Decode } from './NamadaDecode'
 import { Block, Transaction } from '@fadroma/cw'
 
@@ -32,8 +33,8 @@ class NamadaBlock extends Block {
 
   /** Responses from block API endpoints. */
   static async fetchByHeight (
-    { url, decode = Decode, chain }: {
-      url: string|URL, decode?: typeof Decode, chain?: Namada.Chain
+    { url, decode = Decode as unknown as NamadaDecoder, chain }: {
+      url: string|URL, decode?: NamadaDecoder, chain?: Namada.Chain
     },
     { height, raw }: {
       height?: number|string|bigint,
@@ -57,7 +58,7 @@ class NamadaBlock extends Block {
   }
 
   static async fetchByHash (
-    _1: { url: string|URL, decode?: typeof Decode, chain?: Namada.Chain },
+    _1: { url: string|URL, decode?: NamadaDecoder, chain?: Namada.Chain },
     _2: { hash: string, raw?: boolean },
   ): Promise<NamadaBlock> {
     throw new Error('NamadaBlock.fetchByHash: not implemented')
@@ -65,8 +66,8 @@ class NamadaBlock extends Block {
 
   static fromResponses (
     responses: NonNullable<NamadaBlock["responses"]>,
-    { decode = Decode, chain, height, raw = false }: {
-      decode?: typeof Decode
+    { decode = Decode as unknown as NamadaDecoder, chain, height, raw = false }: {
+      decode?: NamadaDecoder
       chain?:  Namada.Chain,
       height?: string|number|bigint,
       raw?:    boolean
diff --git a/packages/namada/NamadaChain.ts b/packages/namada/NamadaChain.ts
index e176ea75e3..a49fb67a3d 100644
--- a/packages/namada/NamadaChain.ts
+++ b/packages/namada/NamadaChain.ts
@@ -6,7 +6,7 @@ import { Decode, initDecoder } from './NamadaDecode'
 import type { NamadaDecoder } from './NamadaDecode'
 
 export default class NamadaChain extends CW.Chain {
-  decode: NamadaDecoder = Decode as NamadaDecoder
+  decode: NamadaDecoder = Decode as unknown as NamadaDecoder
 
   /** Connect to Namada over one or more endpoints. */
   static async connect (
@@ -99,14 +99,12 @@ export default class NamadaChain extends CW.Chain {
     }
     if (options?.percentage) {
       const totalStake = Number(await this.fetchTotalStaked())
-      validators = validators.map((v: Validator)=>Object.assign(v, {
+      validators = validators.map((v: Partial<Validator>)=>Object.assign(v, {
         bondedStake: Number(v.bondedStake),
         stakePercentage: (Number(v.bondedStake) / totalStake) * 100
-      }) as Validator)
+      }))
     }
-    return validators.map((v: Validator)=>Object.assign(v, {
-      status: 'consensus'
-    }) as Validator)
+    return validators.map((v: Partial<Validator>)=>Object.assign(v, { status: 'consensus' }))
   }
   async fetchValidatorsBelowCapacity (options?: { max?: number, percentage?: boolean }) {
     let validators = await this.getConnection().fetchValidatorsBelowCapacityImpl()
@@ -115,14 +113,14 @@ export default class NamadaChain extends CW.Chain {
     }
     if (options?.percentage) {
       const totalStake = Number(await this.fetchTotalStaked())
-      validators = validators.map((v: Validator)=>Object.assign(v, {
+      validators = validators.map((v: Partial<Validator>)=>Object.assign(v, {
         bondedStake: Number(v.bondedStake),
         stakePercentage: (Number(v.bondedStake) / totalStake) * 100
-      }) as Validator)
+      }))
     }
-    return validators.map((v: Validator)=>Object.assign(v, {
+    return validators.map((v: Partial<Validator>)=>Object.assign(v, {
       status: 'below_capacity'
-    }) as Validator)
+    }))
   }
   fetchValidator (address: string) {
     return this.getConnection().fetchValidatorImpl(address)
diff --git a/packages/namada/NamadaDecode.ts b/packages/namada/NamadaDecode.ts
index 919c9ffa49..c6d0949a57 100644
--- a/packages/namada/NamadaDecode.ts
+++ b/packages/namada/NamadaDecode.ts
@@ -1,4 +1,6 @@
 import init, { Decode } from './pkg/fadroma_namada.js'
+import type NamadaBlock from './NamadaBlock'
+import type { Transaction as NamadaTransaction } from './NamadaBlock'
 import type * as PGF from './NamadaPGF'
 import type * as PoS from './NamadaPoS'
 import type * as Gov from './NamadaGov'
@@ -138,6 +140,12 @@ export interface NamadaDecoder {
     vpAllowlist:               string
   }
 
+  block (blockResponse: unknown, resultsResponse: unknown): {
+    hash:         string,
+    header:       NamadaBlock["header"]
+    transactions: Array<Partial<NamadaTransaction> & {id: string}>
+  }
+
   tx (): {
     content: NamadaTxContent,
     [key: string]: unknown