Validate a Polkadot address before sending: SS58 checksum, wrong-prefix detectio...

{ "method": "GET", "queryParams": { "address": "15oF4uVJwmo4TdGW7VfQxNLavjCXviqxT9S1MgbjMNHr6Sp5" }, "type": "http" }

{ "example": { "address": "15oF4uVJwmo4TdGW7VfQxNLavjCXviqxT9S1MgbjMNHr6Sp5", "address_type": "Polkadot account", "chain": "polkadot", "chain_name": "Polkadot", "checksum": "valid", "detected_network": null, "format_valid": true, "network_match": true, "normalized": "15oF4uVJwmo4TdGW7VfQxNLavjCXviqxT9S1MgbjMNHr6Sp5", "note": "Verdict is advice for an agent before moving funds: ok = nothing found, caution = check first, do_not_send = a serious problem, invalid = not a usable Polkadot address. Live existence is not checked for this chain. Sanctions screening covers OFAC-listed digital-currency addresses only. A valid, clean address can still belong to the wrong person: confirm it through a second channel and send a small test amount first for large transfers.", "on_chain": { "checked": false, "reason": "no keyless public node is used for this chain; format and sanctions checks only" }, "sanctions": { "checked": true, "entity": null, "list": "OFAC SDN digital-currency addresses", "sanctioned": false }, "source": "Computed locally (checksum and format); OFAC SDN digital-currency address list", "summary": "Valid Polkadot account.", "verdict": "ok", "warnings": [] }, "type": "json" }