{"id":"t/pesel_validate","kind":"forged","name":"pesel_validate","description":"Offline validator for a Polish PESEL (11-digit national identification number). Verifies the 11-digit format and the weighted mod-10 checksum (weights 1,3,7,9,1,3,7,9,1,3), and decodes the embedded birth date (with century offset encoded in the month digits) and sex (odd=male, even=female) when valid.","tags":["validator","poland","pesel","national-id","offline"],"method":"POST","path":"/v1/t/pesel_validate","url":"https://toll402.dev/v1/t/pesel_validate","specUrl":"https://toll402.dev/v1/spec/t/pesel_validate","price":"$0.001","priceUsd":0.001,"available":true,"inputSchema":{"type":"object","properties":{"pesel":{"type":"string","description":"11-digit PESEL number, digits only (spaces allowed)"}},"required":["pesel"],"additionalProperties":false},"example":{"pesel":"44051401458"},"meta":{"creator":null,"createdAt":"2026-09-09T22:40:33.844Z","calls":3,"failures":2,"network":false,"notes":"Offline, no network calls: strips whitespace, validates 11-digit format, computes weighted mod-10 checksum (weights 1,3,7,9,1,3,7,9,1,3), decodes century from month digit ranges (1-12=1900s,21-32=2000s,41-52=2100s,61-72=2200s,81-92=1800s), verifies calendar date validity, and derives sex from the 10th digit's parity (odd=male, even=female)."}}