Smart Wallet message verify doesnt work. returns invalid result always

[oleggrib]

try this snippet, it return false always when I use Coinbase Smart Wallet and true when I use metamask . Did I do something wrong?

const publicClient = createPublicClient({
		chain: mainnet,
		transport: http()
	});
	// provider = pointer to the wallet provider
	const walletClient = createWalletClient({
		transport: custom(provider)
	});
	// in this step Smart Wallet request user to sign the message
	const signature = await walletClient.signMessage({
		account,
		message: 'hello world'
	});
	const valid = await publicClient.verifyMessage({
		address: account.address,
		message: 'hello world',
		signature
	});
	console.log({ valid });```

[garyshay]

I encountered the same issue, I signed the content with the Coinbase Smart Wallet
When verifying the signature, it always returns false.

const publicClient = createPublicClient({
  chain: base,
  transport: http(),
});
const valid = await publicClient.verifyMessage({
  address: "0x52B2A2015B36e86cc60F81436F097f3390Ea4eEc",
  message: "localhost:3000 wants you to sign in with your Ethereum account:\n0x52B2A2015B36e86cc60F81436F097f3390Ea4eEc\n\nSign in with Ethereum to sendora.org.\n\nURI: http://localhost:3000\nVersion: 1\nChain ID: 1\nNonce: bde0856df2dd7237593b34c416bbddca\nIssued At: 2025-03-20T02:28:16.110Z",
  signature:"0x000000000000000000000000ca11bde05977b3631167028862be2a173976ca1100000000000000000000000000000000000000000000000000000000000000600000000000000000000000000000000000000000000000000000000000000da00000000000000000000000000000000000000000000000000000000000000d0482ad56cb00000000000000000000000000000000000000000000000000000000000000200000000000000000000000000000000000000000000000000000000000000002000000000000000000000000000000000000000000000000000000000000004000000000000000000000000000000000000000000000000000000000000006800000000000000000000000005ff137d4b0fdcd49dca30c7cf57e578a026d27890000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000006000000000000000000000000000000000000000000000000000000000000005a41fad948c000000000000000000000000000000000000000000000000000000000000004000000000000000000000000052b2a2015b36e86cc60f81436f097f3390ea4eec0000000000000000000000000000000000000000000000000000000000000001000000000000000000000000000000000000000000000000000000000000002000000000000000000000000052b2a2015b36e86cc60f81436f097f3390ea4eec00000000000000000000000000000000000000000000210500000000000000000000000000000000000000000000000000000000000000000000000000000160000000000000000000000000000000000000000000000000000000000000018000000000000000000000000000000000000000000000000000000000000251f60000000000000000000000000000000000000000000000000000000000092f42000000000000000000000000000000000000000000000000000000000002eaa800000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000028000000000000000000000000000000000000000000000000000000000000002a0000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000c42c2abd1e00000000000000000000000000000000000000000000000000000000000000200000000000000000000000000000000000000000000000000000000000000001000000000000000000000000000000000000000000000000000000000000002000000000000000000000000000000000000000000000000000000000000000240f0f3f240000000000000000000000006d4feffced8c97ae677d32a800decd1738a0ffd000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000026000000000000000000000000000000000000000000000000000000000000000200000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000004000000000000000000000000000000000000000000000000000000000000001e0000000000000000000000000000000000000000000000000000000000000002000000000000000000000000000000000000000000000000000000000000000c00000000000000000000000000000000000000000000000000000000000000120000000000000000000000000000000000000000000000000000000000000001700000000000000000000000000000000000000000000000000000000000000014d17482a7d77005c5975c0cf2ba8c4a0490fbdb3036dad4a4bb4ced13e8e52cb32e31060a3fc7f9950660d1adc83c684f6b7dc321ee7ee806550ec88e89034a30000000000000000000000000000000000000000000000000000000000000025f198086b2db17256731bc456673b96bcef23f51d1fbacdd7c4379ef65465572f1d0000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000767b2274797065223a22776562617574686e2e676574222c226368616c6c656e6765223a223049456958794b30753175496a4c7558756c34615771795247634e6533315a55616664486e496b596c3551222c226f726967696e223a2268747470733a2f2f6b6579732e636f696e626173652e636f6d227d00000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000005ff137d4b0fdcd49dca30c7cf57e578a026d27890000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000006000000000000000000000000000000000000000000000000000000000000005a41fad948c000000000000000000000000000000000000000000000000000000000000004000000000000000000000000052b2a2015b36e86cc60f81436f097f3390ea4eec0000000000000000000000000000000000000000000000000000000000000001000000000000000000000000000000000000000000000000000000000000002000000000000000000000000052b2a2015b36e86cc60f81436f097f3390ea4eec00000000000000000000000000000000000000000000210500000000000000010000000000000000000000000000000000000000000000000000000000000160000000000000000000000000000000000000000000000000000000000000018000000000000000000000000000000000000000000000000000000000000251f6000000000000000000000000000000000000000000000000000000000008cb10000000000000000000000000000000000000000000000000000000000002eac200000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000028000000000000000000000000000000000000000000000000000000000000002a00000000000000000000000000000000000000000000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});

[garyshay]

I encountered the same issue, I signed the content with the Coinbase Smart Wallet When verifying the signature, it always returns false.

const publicClient = createPublicClient({
  chain: base,
  transport: http(),
});
const valid = await publicClient.verifyMessage({
  address: "0x52B2A2015B36e86cc60F81436F097f3390Ea4eEc",
  message: "localhost:3000 wants you to sign in with your Ethereum account:\n0x52B2A2015B36e86cc60F81436F097f3390Ea4eEc\n\nSign in with Ethereum to sendora.org.\n\nURI: http://localhost:3000\nVersion: 1\nChain ID: 1\nNonce: bde0856df2dd7237593b34c416bbddca\nIssued At: 2025-03-20T02:28:16.110Z",
  signature:"0x000000000000000000000000ca11bde05977b3631167028862be2a173976ca1100000000000000000000000000000000000000000000000000000000000000600000000000000000000000000000000000000000000000000000000000000da00000000000000000000000000000000000000000000000000000000000000d0482ad56cb00000000000000000000000000000000000000000000000000000000000000200000000000000000000000000000000000000000000000000000000000000002000000000000000000000000000000000000000000000000000000000000004000000000000000000000000000000000000000000000000000000000000006800000000000000000000000005ff137d4b0fdcd49dca30c7cf57e578a026d27890000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000006000000000000000000000000000000000000000000000000000000000000005a41fad948c000000000000000000000000000000000000000000000000000000000000004000000000000000000000000052b2a2015b36e86cc60f81436f097f3390ea4eec0000000000000000000000000000000000000000000000000000000000000001000000000000000000000000000000000000000000000000000000000000002000000000000000000000000052b2a2015b36e86cc60f81436f097f3390ea4eec00000000000000000000000000000000000000000000210500000000000000000000000000000000000000000000000000000000000000000000000000000160000000000000000000000000000000000000000000000000000000000000018000000000000000000000000000000000000000000000000000000000000251f60000000000000000000000000000000000000000000000000000000000092f42000000000000000000000000000000000000000000000000000000000002eaa800000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000028000000000000000000000000000000000000000000000000000000000000002a0000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000c42c2abd1e00000000000000000000000000000000000000000000000000000000000000200000000000000000000000000000000000000000000000000000000000000001000000000000000000000000000000000000000000000000000000000000002000000000000000000000000000000000000000000000000000000000000000240f0f3f240000000000000000000000006d4feffced8c97ae677d32a800decd1738a0ffd000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000026000000000000000000000000000000000000000000000000000000000000000200000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000004000000000000000000000000000000000000000000000000000000000000001e0000000000000000000000000000000000000000000000000000000000000002000000000000000000000000000000000000000000000000000000000000000c00000000000000000000000000000000000000000000000000000000000000120000000000000000000000000000000000000000000000000000000000000001700000000000000000000000000000000000000000000000000000000000000014d17482a7d77005c5975c0cf2ba8c4a0490fbdb3036dad4a4bb4ced13e8e52cb32e31060a3fc7f9950660d1adc83c684f6b7dc321ee7ee806550ec88e89034a30000000000000000000000000000000000000000000000000000000000000025f198086b2db17256731bc456673b96bcef23f51d1fbacdd7c4379ef65465572f1d0000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000767b2274797065223a22776562617574686e2e676574222c226368616c6c656e6765223a223049456958794b30753175496a4c7558756c34615771795247634e6533315a55616664486e496b596c3551222c226f726967696e223a2268747470733a2f2f6b6579732e636f696e626173652e636f6d227d00000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000005ff137d4b0fdcd49dca30c7cf57e578a026d27890000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000006000000000000000000000000000000000000000000000000000000000000005a41fad948c000000000000000000000000000000000000000000000000000000000000004000000000000000000000000052b2a2015b36e86cc60f81436f097f3390ea4eec0000000000000000000000000000000000000000000000000000000000000001000000000000000000000000000000000000000000000000000000000000002000000000000000000000000052b2a2015b36e86cc60f81436f097f3390ea4eec00000000000000000000000000000000000000000000210500000000000000010000000000000000000000000000000000000000000000000000000000000160000000000000000000000000000000000000000000000000000000000000018000000000000000000000000000000000000000000000000000000000000251f6000000000000000000000000000000000000000000000000000000000008cb10000000000000000000000000000000000000000000000000000000000002eac200000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000028000000000000000000000000000000000000000000000000000000000000002a00000000000000000000000000000000000000000000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});

I found the problem, I used eth mainnet chainId when signing, but when verifying the public client chose base, their chainId's didn't match which caused me this problem.