diff --git a/common/src/explorer.ts b/common/src/explorer.ts
index f21c9b59..ebddd65e 100644
--- a/common/src/explorer.ts
+++ b/common/src/explorer.ts
@@ -1,10 +1,10 @@
 import {
+  CHAIN_ID_OPTIMISM,
+  CHAIN_ID_SEI,
   CHAIN_ID_WORMCHAIN,
   isCosmWasmChain,
   isEVMChain,
   tryHexToNativeString,
-} from '@certusone/wormhole-sdk';
-import {
   ChainId,
   CHAIN_ID_ACALA,
   CHAIN_ID_ALGORAND,
@@ -35,8 +35,12 @@ import { CHAIN_INFO_MAP, Environment } from './consts';
 
 export const explorerBlock = (network: Environment, chainId: ChainId, block: string) =>
   network === 'mainnet'
-    ? chainId === CHAIN_ID_ETH
+    ? chainId === CHAIN_ID_SOLANA
+      ? `https://solscan.io/block/${block}`
+      : chainId === CHAIN_ID_ETH
       ? `https://etherscan.io/block/${block}`
+      : chainId === CHAIN_ID_TERRA
+      ? `https://finder.terra.money/columbus-5/block/${block}`
       : chainId === CHAIN_ID_BSC
       ? `https://bscscan.com/block/${block}`
       : chainId === CHAIN_ID_POLYGON
@@ -45,48 +49,49 @@ export const explorerBlock = (network: Environment, chainId: ChainId, block: str
       ? `https://snowtrace.io/block/${block}`
       : chainId === CHAIN_ID_OASIS
       ? `https://explorer.emerald.oasis.dev/block/${block}`
-      : chainId === CHAIN_ID_AURORA
-      ? `https://aurorascan.dev/block/${block}`
+      : chainId === CHAIN_ID_ALGORAND
+      ? `https://app.dappflow.org/explorer/block/${block}`
       : chainId === CHAIN_ID_FANTOM
       ? `https://ftmscan.com/block/${block}`
-      : chainId === CHAIN_ID_KLAYTN
-      ? `https://scope.klaytn.com/block/${block}`
-      : chainId === CHAIN_ID_CELO
-      ? `https://explorer.celo.org/block/${block}`
       : chainId === CHAIN_ID_KARURA
       ? `https://blockscout.karura.network/block/${block}`
       : chainId === CHAIN_ID_ACALA
       ? `https://blockscout.acala.network/block/${block}`
-      : chainId === CHAIN_ID_SOLANA
-      ? `https://solscan.io/block/${block}`
-      : chainId === CHAIN_ID_TERRA
-      ? `https://finder.terra.money/columbus-5/block/${block}`
-      : chainId === CHAIN_ID_TERRA2
-      ? `https://finder.terra.money/phoenix-1/block/${block}`
-      : chainId === CHAIN_ID_ALGORAND
-      ? `https://algoexplorer.io/block/${block}`
+      : chainId === CHAIN_ID_KLAYTN
+      ? `https://scope.klaytn.com/block/${block}`
+      : chainId === CHAIN_ID_CELO
+      ? `https://explorer.celo.org/block/${block}`
       : chainId === CHAIN_ID_NEAR
-      ? `https://explorer.near.org/blocks/${block}`
+      ? `https://nearblocks.io/blocks/${block}`
       : chainId === CHAIN_ID_MOONBEAM
       ? `https://moonscan.io/block/${block}`
-      : chainId === CHAIN_ID_XPLA
-      ? `https://explorer.xpla.io/mainnet/block/${block}`
-      : chainId === CHAIN_ID_APTOS
-      ? `https://explorer.aptoslabs.com/block/${block}`
-      : chainId === CHAIN_ID_ARBITRUM
-      ? `https://arbiscan.io/block/${block}`
+      : chainId === CHAIN_ID_TERRA2
+      ? `https://finder.terra.money/phoenix-1/block/${block}`
       : chainId === CHAIN_ID_INJECTIVE
       ? `https://explorer.injective.network/block/${block}`
       : chainId === CHAIN_ID_SUI
       ? `https://suiexplorer.com/checkpoint/${block}`
+      : chainId === CHAIN_ID_APTOS
+      ? `https://explorer.aptoslabs.com/block/${block}`
+      : chainId === CHAIN_ID_ARBITRUM
+      ? `https://arbiscan.io/block/${block}`
+      : chainId === CHAIN_ID_OPTIMISM
+      ? `https://optimistic.etherscan.io/block/${block}`
+      : chainId === CHAIN_ID_XPLA
+      ? `https://explorer.xpla.io/mainnet/block/${block}`
       : chainId === CHAIN_ID_BASE
       ? `https://basescan.org/block/${block}`
+      : chainId === CHAIN_ID_SEI
+      ? `https://www.seiscan.app/pacific-1/blocks/${block}`
       : chainId === CHAIN_ID_WORMCHAIN
       ? `https://bigdipper.live/wormhole/blocks/${block}`
       : ''
+    : chainId === CHAIN_ID_SOLANA
+    ? `https://explorer.solana.com/${block}?cluster=testnet`
     : chainId === CHAIN_ID_ETH
     ? `https://sepolia.etherscan.io/block/${block}`
-    : chainId === CHAIN_ID_BSC
+    : // : chainId === CHAIN_ID_TERRA <-- not supported on testnet dashboard
+    chainId === CHAIN_ID_BSC
     ? `https://testnet.bscscan.com/block/${block}`
     : chainId === CHAIN_ID_POLYGON
     ? `https://mumbai.polygonscan.com/block/${block}`
@@ -94,36 +99,47 @@ export const explorerBlock = (network: Environment, chainId: ChainId, block: str
     ? `https://testnet.snowtrace.io/block/${block}`
     : chainId === CHAIN_ID_OASIS
     ? `https://testnet.oasisscan.com/block/${block}`
+    : chainId === CHAIN_ID_ALGORAND
+    ? `https://app.dappflow.org/explorer/block/${block}`
     : chainId === CHAIN_ID_FANTOM
     ? `https://testnet.ftmscan.com/block/${block}`
+    : // : chainId === CHAIN_ID_KARURA <-- not supported on testnet dashboard
+    chainId === CHAIN_ID_ACALA
+    ? `https://blockscout.mandala.aca-staging.network/block/${block}`
     : chainId === CHAIN_ID_KLAYTN
     ? `https://baobab.klaytnscope.com/block/${block}`
     : chainId === CHAIN_ID_CELO
     ? `https://alfajores.celoscan.io/block/${block}`
-    : chainId === CHAIN_ID_ACALA
-    ? `https://blockscout.mandala.aca-staging.network/block/${block}`
-    : chainId === CHAIN_ID_SOLANA
-    ? `https://explorer.solana.com/${block}?cluster=testnet`
-    : chainId === CHAIN_ID_ALGORAND
-    ? `https://testnet.algoexplorer.io/block/${block}`
-    : chainId === CHAIN_ID_MOONBEAM
+    : // : chainId === CHAIN_ID_NEAR <-- not supported on testnet dashboard
+    chainId === CHAIN_ID_MOONBEAM
     ? `https://moonbase.moonscan.io/block/${block}`
-    : chainId === CHAIN_ID_XPLA
-    ? `https://explorer.xpla.io/testnet/block/${block}`
+    : // : chainId === CHAIN_ID_TERRA2 <-- not supported on testnet dashboard
+    // : chainId === CHAIN_ID_INJECTIVE <-- not supported on testnet dashboard
+    chainId === CHAIN_ID_SUI
+    ? `https://suiexplorer.com/checkpoint/${block}?network=testnet`
     : chainId === CHAIN_ID_APTOS
     ? `https://explorer.aptoslabs.com/block/${block}?network=testnet`
     : chainId === CHAIN_ID_ARBITRUM
     ? `https://sepolia.arbiscan.io/block/${block}`
-    : chainId === CHAIN_ID_SUI
-    ? `https://suiexplorer.com/checkpoint/${block}?network=testnet`
+    : chainId === CHAIN_ID_OPTIMISM
+    ? `https://sepolia-optimism.etherscan.io/block/${block}`
+    : chainId === CHAIN_ID_XPLA
+    ? `https://explorer.xpla.io/testnet/block/${block}`
     : chainId === CHAIN_ID_BASE
     ? `https://goerli.basescan.org/block/${block}`
-    : '';
+    : chainId === CHAIN_ID_SEI
+    ? `https://www.seiscan.app/atlantic-2/blocks/${block}`
+    : // : chainId === CHAIN_ID_WORMCHAIN <-- not supported on testnet dashboard
+      '';
 
 export const explorerTx = (network: Environment, chainId: ChainId, tx: string) =>
   network === 'mainnet'
-    ? chainId === CHAIN_ID_ETH
+    ? chainId === CHAIN_ID_SOLANA
+      ? `https://solscan.io/account/${tx}`
+      : chainId === CHAIN_ID_ETH
       ? `https://etherscan.io/tx/${tx}`
+      : chainId === CHAIN_ID_TERRA
+      ? `https://finder.terra.money/columbus-5/tx/${tx}`
       : chainId === CHAIN_ID_BSC
       ? `https://bscscan.com/tx/${tx}`
       : chainId === CHAIN_ID_POLYGON
@@ -132,48 +148,49 @@ export const explorerTx = (network: Environment, chainId: ChainId, tx: string) =
       ? `https://snowtrace.io/tx/${tx}`
       : chainId === CHAIN_ID_OASIS
       ? `https://explorer.emerald.oasis.dev/tx/${tx}`
-      : chainId === CHAIN_ID_AURORA
-      ? `https://aurorascan.dev/tx/${tx}`
+      : chainId === CHAIN_ID_ALGORAND
+      ? `https://app.dappflow.org/explorer/transaction/${tx}`
       : chainId === CHAIN_ID_FANTOM
       ? `https://ftmscan.com/tx/${tx}`
-      : chainId === CHAIN_ID_KLAYTN
-      ? `https://scope.klaytn.com/tx/${tx}`
-      : chainId === CHAIN_ID_CELO
-      ? `https://explorer.celo.org/tx/${tx}`
       : chainId === CHAIN_ID_KARURA
       ? `https://blockscout.karura.network/tx/${tx}`
       : chainId === CHAIN_ID_ACALA
       ? `https://blockscout.acala.network/tx/${tx}`
-      : chainId === CHAIN_ID_SOLANA
-      ? `https://solscan.io/account/${tx}`
-      : chainId === CHAIN_ID_TERRA
-      ? `https://finder.terra.money/columbus-5/tx/${tx}`
-      : chainId === CHAIN_ID_TERRA2
-      ? `https://finder.terra.money/phoenix-1/tx/${tx}`
-      : chainId === CHAIN_ID_ALGORAND
-      ? `https://algoexplorer.io/tx/${tx}`
+      : chainId === CHAIN_ID_KLAYTN
+      ? `https://scope.klaytn.com/tx/${tx}`
+      : chainId === CHAIN_ID_CELO
+      ? `https://explorer.celo.org/tx/${tx}`
       : chainId === CHAIN_ID_NEAR
       ? `https://explorer.near.org/transactions/${tx}`
       : chainId === CHAIN_ID_MOONBEAM
       ? `https://moonscan.io/tx/${tx}`
-      : chainId === CHAIN_ID_XPLA
-      ? `https://explorer.xpla.io/mainnet/tx/${tx}`
-      : chainId === CHAIN_ID_APTOS
-      ? `https://explorer.aptoslabs.com/txn/${tx}`
-      : chainId === CHAIN_ID_ARBITRUM
-      ? `https://arbiscan.io/tx/${tx}`
+      : chainId === CHAIN_ID_TERRA2
+      ? `https://finder.terra.money/phoenix-1/tx/${tx}`
       : chainId === CHAIN_ID_INJECTIVE
       ? `https://explorer.injective.network/transaction/${tx}`
       : chainId === CHAIN_ID_SUI
       ? `https://suiexplorer.com/txblock/${tx}`
+      : chainId === CHAIN_ID_APTOS
+      ? `https://explorer.aptoslabs.com/txn/${tx}?network=mainnet`
+      : chainId === CHAIN_ID_ARBITRUM
+      ? `https://arbiscan.io/tx/${tx}`
+      : chainId === CHAIN_ID_OPTIMISM
+      ? `https://optimistic.etherscan.io/tx/${tx}`
+      : chainId === CHAIN_ID_XPLA
+      ? `https://explorer.xpla.io/mainnet/tx/${tx}`
       : chainId === CHAIN_ID_BASE
       ? `https://basescan.org/tx/${tx}`
+      : chainId === CHAIN_ID_SEI
+      ? `https://www.seiscan.app/pacific-1/txs/${tx}`
       : chainId === CHAIN_ID_WORMCHAIN
       ? `https://bigdipper.live/wormhole/transactions/${tx}`
       : ''
+    : chainId === CHAIN_ID_SOLANA
+    ? `https://solscan.io/txs/${tx}?cluster=testnet`
     : chainId === CHAIN_ID_ETH
     ? `https://sepolia.etherscan.io/tx/${tx}`
-    : chainId === CHAIN_ID_BSC
+    : // : chainId === CHAIN_ID_TERRA <-- not supported on testnet dashboard
+    chainId === CHAIN_ID_BSC
     ? `https://testnet.bscscan.com/tx/${tx}`
     : chainId === CHAIN_ID_POLYGON
     ? `https://mumbai.polygonscan.com/tx/${tx}`
@@ -181,31 +198,38 @@ export const explorerTx = (network: Environment, chainId: ChainId, tx: string) =
     ? `https://testnet.snowtrace.io/tx/${tx}`
     : chainId === CHAIN_ID_OASIS
     ? `https://testnet.oasisscan.com/tx/${tx}`
+    : chainId === CHAIN_ID_ALGORAND
+    ? `https://app.dappflow.org/explorer/transaction/${tx}`
     : chainId === CHAIN_ID_FANTOM
     ? `https://testnet.ftmscan.com/tx/${tx}`
+    : // chainId === CHAIN_ID_KARURA <-- not supported on testnet dashboard
+    chainId === CHAIN_ID_ACALA
+    ? `https://blockscout.mandala.aca-staging.network/tx/${tx}`
     : chainId === CHAIN_ID_KLAYTN
     ? `https://baobab.klaytnscope.com/tx/${tx}`
     : chainId === CHAIN_ID_CELO
     ? `https://alfajores.celoscan.io/tx/${tx}`
-    : chainId === CHAIN_ID_ACALA
-    ? `https://blockscout.mandala.aca-staging.network/tx/${tx}`
-    : chainId === CHAIN_ID_SOLANA
-    ? `https://solscan.io/account/${tx}?cluster=testnet`
-    : chainId === CHAIN_ID_ALGORAND
-    ? `https://testnet.algoexplorer.io/tx/${tx}`
-    : chainId === CHAIN_ID_MOONBEAM
+    : //  chainId === CHAIN_ID_NEAR <-- not supported on testnet dashboard
+    chainId === CHAIN_ID_MOONBEAM
     ? `https://moonbase.moonscan.io/tx/${tx}`
-    : chainId === CHAIN_ID_XPLA
-    ? `https://explorer.xpla.io/testnet/tx/${tx}`
+    : // chainId === CHAIN_ID_TERRA2 <-- not supported on testnet dashboard
+    // chainId === CHAIN_ID_INJECTIVE <-- not supported on testnet dashboard
+    chainId === CHAIN_ID_SUI
+    ? `https://suiexplorer.com/txblock/${tx}?network=testnet`
     : chainId === CHAIN_ID_APTOS
     ? `https://explorer.aptoslabs.com/txn/${tx}?network=testnet`
     : chainId === CHAIN_ID_ARBITRUM
     ? `https://sepolia.arbiscan.io/tx/${tx}`
-    : chainId === CHAIN_ID_SUI
-    ? `https://suiexplorer.com/txblock/${tx}?network=testnet`
+    : chainId === CHAIN_ID_OPTIMISM
+    ? `https://sepolia-optimism.etherscan.io/tx/${tx}`
+    : chainId === CHAIN_ID_XPLA
+    ? `https://explorer.xpla.io/testnet/tx/${tx}`
     : chainId === CHAIN_ID_BASE
     ? `https://goerli.basescan.org/tx/${tx}`
-    : '';
+    : chainId === CHAIN_ID_SEI
+    ? `https://www.seiscan.app/atlantic-2/txs/${tx}`
+    : // chainId === CHAIN_ID_WORMCHAIN <-- not supported on testnet dashboard
+      '';
 
 export const explorerVaa = (network: string, key: string) =>
   network === 'mainnet'