Mudr-209 -

if (len > PAYLOAD_MAX) return; // guard assemble_record(payload, len); protect_record(); persist_record(); update_merkle();

/* 4. Write to flash (append‑only) ------------------------------------------*/ static void persist_record(void) MUDR-209

/* Compute CRC over header+payload (excluding CRC field) */ hdr->crc32 = crc32_compute(record_buf, sizeof(mudr209_hdr_t) + len); if (len &gt

flash_append(record_buf, sizeof(mudr209_hdr_t)+hdr->payload_sz); // guard assemble_record(payload