Pin for one year with report-uri

pin-sha256="EpOpN/ahUF6jhWShDUdy+NvvtaGcu5F7qM6+x2mfkh4=";
max-age=31536000;
includeSubDomains;
report-uri="https://my-reports.com/submit"

Pin for a short time (considered unsafe)

pin-sha256="EpOpN/ahUF6jhWShDUdy+NvvtaGcu5F7qM6+x2mfkh4=";
max-age=123