diff --git a/CHANGELOG.md b/CHANGELOG.md
index 29a854a..f0db6a4 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,3 +1,11 @@
+# v0.4.20
+- Add two new utility functions:
+  - `getClosestTimestamp`
+  - `getTimestampFromBlockNumber`
+- Update manifest validator to not use arktype
+- change --public options to --private in `arkiver deploy`
+- Updated examples 
+
 # v0.4.19
 - Adds factory sources. added an example factory-source to showcase this. API looks like:
 ```typescript
diff --git a/cli.ts b/cli.ts
index aec777b..00e7920 100644
--- a/cli.ts
+++ b/cli.ts
@@ -17,7 +17,7 @@ import {
 } from './cli/mod.ts'
 import 'https://deno.land/std@0.179.0/dotenv/load.ts'
 
-export const version = 'v0.4.19'
+export const version = 'v0.4.20'
 
 const command = new Command()
   .name('arkiver')
diff --git a/examples/block-handler-vaults/deps.ts b/examples/block-handler-vaults/deps.ts
index 4efb5de..ababa5a 100644
--- a/examples/block-handler-vaults/deps.ts
+++ b/examples/block-handler-vaults/deps.ts
@@ -3,4 +3,4 @@ export {
   createEntity,
   type EventHandlerFor,
   Manifest,
-} from 'https://deno.land/x/robo_arkiver@v0.4.19/mod.ts'
+} from 'hhttps://deno.land/x/robo_arkiver@v0.4.20/mod.ts'
diff --git a/examples/block-handler-vaults/handlers/vault.ts b/examples/block-handler-vaults/handlers/vault.ts
index c9e7744..34f15f5 100644
--- a/examples/block-handler-vaults/handlers/vault.ts
+++ b/examples/block-handler-vaults/handlers/vault.ts
@@ -1,5 +1,5 @@
 import { formatUnits, getContract } from 'npm:viem'
-import { type BlockHandler } from 'https://deno.land/x/robo_arkiver@v0.4.19/mod.ts'
+import { type BlockHandler } from 'hhttps://deno.land/x/robo_arkiver@v0.4.20/mod.ts'
 import { VaultSnapshot } from '../entities/vault.ts'
 import { YEARN_V2_ABI } from '../abis/YearnV2.ts'
 
diff --git a/examples/block-handler-vaults/manifest.ts b/examples/block-handler-vaults/manifest.ts
index d09cf6a..6bb671d 100644
--- a/examples/block-handler-vaults/manifest.ts
+++ b/examples/block-handler-vaults/manifest.ts
@@ -1,4 +1,4 @@
-import { Manifest } from 'https://deno.land/x/robo_arkiver@v0.4.19/mod.ts'
+import { Manifest } from 'hhttps://deno.land/x/robo_arkiver@v0.4.20/mod.ts'
 import { VaultSnapshot } from './entities/vault.ts'
 import { snapshotVault } from './handlers/vault.ts'
 
diff --git a/examples/erc20-balance-history/entities.ts b/examples/erc20-balance-history/entities.ts
index fe0d98f..9683e40 100644
--- a/examples/erc20-balance-history/entities.ts
+++ b/examples/erc20-balance-history/entities.ts
@@ -1,4 +1,4 @@
-import { createEntity } from 'https://deno.land/x/robo_arkiver@v0.4.19/mod.ts'
+import { createEntity } from 'hhttps://deno.land/x/robo_arkiver@v0.4.20/mod.ts'
 
 // @note: "Index: true" enhances graphql queries
 
diff --git a/examples/erc20-balance-history/handlers.ts b/examples/erc20-balance-history/handlers.ts
index 8d3877e..017b3b8 100644
--- a/examples/erc20-balance-history/handlers.ts
+++ b/examples/erc20-balance-history/handlers.ts
@@ -1,5 +1,5 @@
 import { formatUnits, fromHex, numberToHex } from 'npm:viem'
-import { type EventHandlerFor } from 'https://deno.land/x/robo_arkiver@v0.4.19/mod.ts'
+import { type EventHandlerFor } from 'hhttps://deno.land/x/robo_arkiver@v0.4.20/mod.ts'
 import erc20 from './erc20.ts'
 import { Balance, BalanceHistory, Transfer } from './entities.ts'
 
diff --git a/examples/erc20-balance-history/manifest.ts b/examples/erc20-balance-history/manifest.ts
index ea3301b..2e37a93 100644
--- a/examples/erc20-balance-history/manifest.ts
+++ b/examples/erc20-balance-history/manifest.ts
@@ -1,4 +1,4 @@
-import { Manifest } from 'https://deno.land/x/robo_arkiver@v0.4.19/mod.ts'
+import { Manifest } from 'hhttps://deno.land/x/robo_arkiver@v0.4.20/mod.ts'
 import { ERC_20_ABI } from './Erc20.ts'
 import { Entities } from './entities.ts'
 import { onTransfer } from './handlers.ts'
diff --git a/examples/erc20-events/entities.ts b/examples/erc20-events/entities.ts
index 2b29108..f76e04c 100644
--- a/examples/erc20-events/entities.ts
+++ b/examples/erc20-events/entities.ts
@@ -1,4 +1,4 @@
-import { createEntity } from 'https://deno.land/x/robo_arkiver@v0.4.19/mod.ts'
+import { createEntity } from 'hhttps://deno.land/x/robo_arkiver@v0.4.20/mod.ts'
 
 // @note: "Index: true" enhances graphql queries
 export const Transfer = createEntity<any>('Transfer', {
diff --git a/examples/erc20-events/handlers.ts b/examples/erc20-events/handlers.ts
index 41b8b3b..06bdcdc 100644
--- a/examples/erc20-events/handlers.ts
+++ b/examples/erc20-events/handlers.ts
@@ -1,5 +1,5 @@
 import { formatUnits } from 'npm:viem'
-import { type EventHandlerFor } from 'https://deno.land/x/robo_arkiver@v0.4.19/mod.ts'
+import { type EventHandlerFor } from 'hhttps://deno.land/x/robo_arkiver@v0.4.20/mod.ts'
 import { ERC_20_ABI } from './Erc20.ts'
 import { Approval, Transfer } from './entities.ts'
 
diff --git a/examples/erc20-events/manifest.ts b/examples/erc20-events/manifest.ts
index 4f04788..0691118 100644
--- a/examples/erc20-events/manifest.ts
+++ b/examples/erc20-events/manifest.ts
@@ -1,4 +1,4 @@
-import { Manifest } from 'https://deno.land/x/robo_arkiver@v0.4.19/mod.ts'
+import { Manifest } from 'hhttps://deno.land/x/robo_arkiver@v0.4.20/mod.ts'
 import { ERC_20_ABI } from './Erc20.ts'
 import { Approval, Transfer } from './entities.ts'
 import { onApproval, onTransfer } from './handlers.ts'
diff --git a/examples/event-wildcard/deps.ts b/examples/event-wildcard/deps.ts
index 4efb5de..ababa5a 100644
--- a/examples/event-wildcard/deps.ts
+++ b/examples/event-wildcard/deps.ts
@@ -3,4 +3,4 @@ export {
   createEntity,
   type EventHandlerFor,
   Manifest,
-} from 'https://deno.land/x/robo_arkiver@v0.4.19/mod.ts'
+} from 'hhttps://deno.land/x/robo_arkiver@v0.4.20/mod.ts'
diff --git a/examples/library/deps.ts b/examples/library/deps.ts
index 4bcbc78..341cc6e 100644
--- a/examples/library/deps.ts
+++ b/examples/library/deps.ts
@@ -3,8 +3,8 @@ export {
   createEntity,
   type EventHandlerFor,
   Manifest,
-} from 'https://deno.land/x/robo_arkiver@v0.4.19/mod.ts'
+} from 'hhttps://deno.land/x/robo_arkiver@v0.4.20/mod.ts'
 export {
   Erc721Lib,
   type Erc721Opts,
-} from 'https://deno.land/x/robo_arkiver@v0.4.19/libs.ts'
+} from 'hhttps://deno.land/x/robo_arkiver@v0.4.20/libs.ts'
diff --git a/examples/simple/deps.ts b/examples/simple/deps.ts
index 4efb5de..ababa5a 100644
--- a/examples/simple/deps.ts
+++ b/examples/simple/deps.ts
@@ -3,4 +3,4 @@ export {
   createEntity,
   type EventHandlerFor,
   Manifest,
-} from 'https://deno.land/x/robo_arkiver@v0.4.19/mod.ts'
+} from 'hhttps://deno.land/x/robo_arkiver@v0.4.20/mod.ts'