diff --git a/js/components/ascribe_forms/form.js b/js/components/ascribe_forms/form.js
index 2b956a7e..a9e267d9 100644
--- a/js/components/ascribe_forms/form.js
+++ b/js/components/ascribe_forms/form.js
@@ -23,8 +23,8 @@ let Form = React.createClass({
         handleSuccess: React.PropTypes.func,
         getFormData: React.PropTypes.func,
         children: React.PropTypes.oneOfType([
-            React.PropTypes.object,
-            React.PropTypes.array
+            React.PropTypes.arrayOf(React.PropTypes.element),
+            React.PropTypes.element
         ]),
         className: React.PropTypes.string,
         spinner: React.PropTypes.element,
@@ -165,14 +165,43 @@ let Form = React.createClass({
         this.setState({errors: []});
     },
 
+    checkFormValidity() {
+        let requiredProps = [];
+
+        Object
+            .keys(this.refs)
+            .forEach((refName) => {
+                if(this.refs[refName].props.required) {
+                    requiredProps.push(this.refs[refName]);
+                }
+            });
+
+        let validProps = requiredProps.filter((property) => property.state.isValid);
+
+        if(requiredProps.length === validProps.length) {
+            return true;
+        } else {
+            return false;
+        }
+
+    },
+
     getButtons() {
-        if (this.state.submitted){
+        let buttons = null;
+        let isFormValid = this.checkFormValidity();
+
+        if(this.state.submitted) {
             return this.props.spinner;
         }
-        if (this.props.buttons){
-            return this.props.buttons;
+        if(this.props.buttons) {
+
+            buttons = React.cloneElement(this.props.buttons, {
+                disabled: !isFormValid
+            });
+
+            return buttons;
         }
-        let buttons = null;
+        
 
         if (this.state.edited){
             buttons = (
diff --git a/js/components/ascribe_forms/form_register_piece.js b/js/components/ascribe_forms/form_register_piece.js
index 6545007c..ef25dd55 100644
--- a/js/components/ascribe_forms/form_register_piece.js
+++ b/js/components/ascribe_forms/form_register_piece.js
@@ -27,7 +27,10 @@ let RegisterPieceForm = React.createClass({
         isFineUploaderActive: React.PropTypes.bool,
         isFineUploaderEditable: React.PropTypes.bool,
         enableLocalHashing: React.PropTypes.bool,
-        children: React.PropTypes.element,
+        children: React.PropTypes.oneOfType([
+            React.PropTypes.arrayOf(React.PropTypes.element),
+            React.PropTypes.element
+        ]),
         onLoggedOut: React.PropTypes.func
     },
 
@@ -74,16 +77,11 @@ let RegisterPieceForm = React.createClass({
         });
     },
 
-    setIsUploadReady(isReady) {
-        this.setState({
-            isUploadReady: isReady
-        });
-    },
-
     render() {
         let currentUser = this.state.currentUser;
         let enableLocalHashing = currentUser && currentUser.profile ? currentUser.profile.hash_locally : false;
         enableLocalHashing = enableLocalHashing && this.props.enableLocalHashing;
+
         return (
             <Form
                 className="ascribe-form-bordered"
@@ -106,11 +104,11 @@ let RegisterPieceForm = React.createClass({
                     <h3>{this.props.headerMessage}</h3>
                 </div>
                 <Property
-                    ignoreFocus={true}>
+                    name="digital_work_key"
+                    ignoreFocus={true}
+                    required={true}>
                     <FileUploader
                         submitKey={this.submitKey}
-                        setIsUploadReady={this.setIsUploadReady}
-                        isReadyForFormSubmission={isReadyForFormSubmission}
                         isFineUploaderActive={this.props.isFineUploaderActive}
                         onLoggedOut={this.props.onLoggedOut}
                         editable={this.props.isFineUploaderEditable}
@@ -118,7 +116,8 @@ let RegisterPieceForm = React.createClass({
                 </Property>
                 <Property
                     name='artist_name'
-                    label={getLangText('Artist Name')}>
+                    label={getLangText('Artist Name')}
+                    required={true}>
                     <input
                         type="text"
                         placeholder="(e.g. Andy Warhol)"
@@ -126,7 +125,8 @@ let RegisterPieceForm = React.createClass({
                 </Property>
                 <Property
                     name='title'
-                    label={getLangText('Title')}>
+                    label={getLangText('Title')}
+                    required={true}>
                     <input
                         type="text"
                         placeholder="(e.g. 32 Campbell's Soup Cans)"
@@ -134,7 +134,8 @@ let RegisterPieceForm = React.createClass({
                 </Property>
                 <Property
                     name='date_created'
-                    label={getLangText('Year Created')}>
+                    label={getLangText('Year Created')}
+                    required={true}>
                     <input
                         type="number"
                         placeholder="(e.g. 1962)"
@@ -149,7 +150,6 @@ let RegisterPieceForm = React.createClass({
 
 let FileUploader = React.createClass({
     propTypes: {
-        setIsUploadReady: React.PropTypes.func,
         submitKey: React.PropTypes.func,
         isReadyForFormSubmission: React.PropTypes.func,
         onClick: React.PropTypes.func,
@@ -160,7 +160,31 @@ let FileUploader = React.createClass({
         isFineUploaderActive: React.PropTypes.bool,
         onLoggedOut: React.PropTypes.func,
         editable: React.PropTypes.bool,
-        enableLocalHashing: React.PropTypes.bool
+        enableLocalHashing: React.PropTypes.bool,
+
+        // is provided by Property
+        onChange: React.PropTypes.func
+    },
+
+    getInitialState() {
+        return {
+            value: false
+        };
+    },
+
+    setIsUploadReady(isReady) {
+        this.setState({
+            value: isReady
+        });
+
+        // Property is listening to this.state.value to determine
+        // if the form is ready. As it will access this.state.value directly
+        // we need to call onChange after the state submission has been done.
+        this.props.onChange({
+            target: {
+                value: isReady
+            }
+        });
     },
 
     render() {
@@ -179,8 +203,8 @@ let FileUploader = React.createClass({
                     itemLimit: 100000,
                     sizeLimit: '25000000000'
                 }}
-                setIsUploadReady={this.props.setIsUploadReady}
-                isReadyForFormSubmission={this.props.isReadyForFormSubmission}
+                setIsUploadReady={this.setIsUploadReady}
+                isReadyForFormSubmission={isReadyForFormSubmission}
                 areAssetsDownloadable={false}
                 areAssetsEditable={this.props.isFineUploaderActive}
                 signature={{
diff --git a/js/components/ascribe_forms/input_checkbox.js b/js/components/ascribe_forms/input_checkbox.js
index a71dd4b6..946f7e34 100644
--- a/js/components/ascribe_forms/input_checkbox.js
+++ b/js/components/ascribe_forms/input_checkbox.js
@@ -21,7 +21,8 @@ let InputCheckbox = React.createClass({
         children: React.PropTypes.oneOfType([
             React.PropTypes.arrayOf(React.PropTypes.element),
             React.PropTypes.element
-        ])
+        ]),
+        onChange: React.PropTypes.bool
     },
 
     // As HTML inputs, we're setting the default value for an input to checked === false
@@ -55,6 +56,21 @@ let InputCheckbox = React.createClass({
         }
     },
 
+    // after the component was updated and the state value changed,
+    // we need to call onChange from property to refresh the state.value of property
+    componentDidUpdate(prevProps, prevState) {
+        if(prevState.value !== this.state.value) {
+            // and also call Property's onChange method
+            // (in this case we're mocking event.target.value, since we can not use the event
+            // coming from onChange. Its coming from the span (user is clicking on the span) and not the input)
+            this.props.onChange({
+                target: {
+                    value: this.state.value
+                }
+            });
+        }
+    },
+
     onChange() {
         // On every change, we're inversing the input's value
         let inverseValue = !this.refs.checkbox.getDOMNode().checked;
@@ -62,15 +78,6 @@ let InputCheckbox = React.createClass({
         // pass it to the state
         this.setState({value: inverseValue});
 
-        // and also call Property's onChange method
-        // (in this case we're mocking event.target.value, since we can not use the event
-        // coming from onChange. Its coming from the span (user is clicking on the span) and not the input)
-        this.props.onChange({
-            target: {
-                value: inverseValue
-            }
-        });
-
     },
 
     render() {
diff --git a/js/components/ascribe_forms/property.js b/js/components/ascribe_forms/property.js
index 5a72270c..8b28de41 100644
--- a/js/components/ascribe_forms/property.js
+++ b/js/components/ascribe_forms/property.js
@@ -26,14 +26,19 @@ let Property = React.createClass({
             React.PropTypes.arrayOf(React.PropTypes.element),
             React.PropTypes.element
         ]),
-        style: React.PropTypes.object
+        style: React.PropTypes.object,
+        required: React.PropTypes.bool,
+
+        // is a std reg exp as seen from HTML inputs
+        pattern: React.PropTypes.string
     },
 
     getDefaultProps() {
         return {
             editable: true,
             hidden: false,
-            className: ''
+            className: '',
+            required: false
         };
     },
 
@@ -45,7 +50,8 @@ let Property = React.createClass({
             initialValue: null,
             value: null,
             isFocused: false,
-            errors: null
+            errors: null,
+            isValid: false
         };
     },
 
@@ -56,8 +62,10 @@ let Property = React.createClass({
         // the state of value should only be set if its not undefined and
         // actually references something
         if(typeof childInput.getDOMNode().value !== 'undefined') {
+
             this.setState({
-                value: childInput.getDOMNode().value
+                value: childInput.getDOMNode().value,
+                isValid: this.checkValidity(childInput.getDOMNode().value)
             });
 
         // When implementing custom input components, their value isn't exposed like the one
@@ -65,8 +73,10 @@ let Property = React.createClass({
         // To enable developers to create input elements, they can expose a property called value
         // in their state that will be picked up by property.js
         } else if(childInput.state && typeof childInput.state.value !== 'undefined') {
+
             this.setState({
-                value: childInput.state.value
+                value: childInput.state.value,
+                isValid: this.checkValidity(childInput.state.value)
             });
         }
 
@@ -75,6 +85,24 @@ let Property = React.createClass({
                 initialValue: childInput.props.defaultValue
             });
         }
+
+    },
+
+    checkValidity(value) {
+        if(this.props.required && value) {
+            if(this.props.pattern && value && value.match(this.props.pattern)) {
+                // if the value is matching the provided pattern
+                return true;
+            } else if(!this.props.pattern) {
+                // if no pattern was provided, everything is evaluated to true
+                return true;
+            } else {
+                // if the pattern was provided but the input didn't match it
+                return false;
+            }
+        } else {
+            return false;
+        }
     },
 
     reset() {
@@ -90,13 +118,14 @@ let Property = React.createClass({
     },
 
     handleChange(event) {
-
         this.props.handleChange(event);
         if ('onChange' in this.props) {
             this.props.onChange(event);
         }
 
-        this.setState({value: event.target.value});
+        this.setState({
+            value: event.target.value
+        });
     },
 
     handleFocus() {
diff --git a/js/components/whitelabel/wallet/components/cyland/cyland_register_piece.js b/js/components/whitelabel/wallet/components/cyland/cyland_register_piece.js
index 5a17ae94..5651292a 100644
--- a/js/components/whitelabel/wallet/components/cyland/cyland_register_piece.js
+++ b/js/components/whitelabel/wallet/components/cyland/cyland_register_piece.js
@@ -153,7 +153,8 @@ let CylandRegisterPiece = React.createClass({
                                 <Property
                                     name="terms"
                                     className="ascribe-settings-property-collapsible-toggle"
-                                    style={{paddingBottom: 0}}>
+                                    style={{paddingBottom: 0}}
+                                    required={true}>
                                     <InputCheckbox>
                                         <span>
                                             {' ' + getLangText('I agree to the Terms of Service of Cyland Archive') + ' '}