A contract account can validate signatures under its own policy.
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An organization can accept approvals through rules that differ from one person’s stamp.
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From a public address to a verified signatureStep 1 / 4
An address is public receiving information. It is not the private key that authorizes actions.
An address is public receiving information. It is not the private key that authorizes actions.The local signing system uses secret authorization material. It produces a signature; the private key is not sent along with it.A verifier checks the signed request under the account’s rules. A valid signature does not by itself prove that the action is safe.Balances belong to network state. A wallet is an interface and signing system, not a box containing coins.
Animated local teaching model. No wallet, RPC or live blockchain data. Some labels and hashes are abbreviated for readability.
Ask the account’s policy
ERC-1271 defines isValidSignature for contract-based validation. Its decision can depend on contract logic and current state rather than one directly recoverable EOA key.
Check the specified result
The standard success result is the bytes4 magic value 0x1626ba7e. A non-reverting call alone is not a sufficient acceptance rule.
Expect validity to change
An account can change owners or approval policy. A signature accepted at one state may not remain valid forever, so caching a past answer requires careful protocol analysis.
Handle failure safely
The validation call can revert or return unexpected data. Treat those outcomes according to the integration’s defined policy and do not silently accept them.
Inspect the distinction
isValidSignature(bytes32 digest, bytes signature)
standard accepted result: 0x1626ba7e
other data or failure: not standard acceptance
These are local teaching values, not a signature request or a live-chain lookup.