Accounts between the 3 major platforms (SciencesConf ; Episciences ; HAL) operated by the CCSD are shared. Accounts may now be merged by the CCSD team. If you need to merge accounts send a request to the support of your journal with the login of your accounts and the one you want to keep using. Your profiles will be merged on each platform.
Published articles may be accessed by their old identifier. The request will redirect to the latest published version of the article.