On the Public Delivery website, locate the 'Silence Was Golden' project. Describe what the project entails, how participants contribute, and confirm if it is currently open for new participants. Also, state approximately how many people have participated.
Navigate to 'publicdelivery.org'. Click on the 'Projects' link in the navigation menu. On the 'Projects' page, click on the 'Silence Was Golden' project link. Scroll down the 'Silence Was Golden' project page to locate the project description. Identify what the project entails and how participants contribute. Ascertain if the project is open for new participants. Locate the approximate number of participants. Synthesize the gathered information into a concise answer.
Successfully navigate to the 'Silence Was Golden' project page. State that 'Silence Was Golden' is an 'on-going global performance series' where 'performers choose a word or a short phrase... and then spell it out of golden letter balloons in relevant locations'. Confirm that the project is 'open and free to participate'. State that 'thousands of people have taken part'.