The spread of false and misleading information is receiving significant attention from legislative and regulatory bodies. Consumers place trust in specific sources of information, so a scalable, interoperable method for determining the provenance and authenticity of information is needed. In this paper we analyze the posting of broadcast news content to a social media platform, the role of open standards, the interplay of cryptographic metadata and watermarks when validating provenance, and likely success and failure scenarios. We conclude that the open standards for cryptographically authenticated metadata developed by the Coalition for Provenance and Authenticity (C2PA) and for audio and video watermarking developed by the Advanced Television Systems Committee (ATSC) are well suited to address broadcast provenance. We suggest methods for using these standards for optimal success.

翻译：虚假和误导性信息的传播正引起立法和监管机构的高度关注。消费者信任特定信息来源，因此需要一种可扩展、可互操作的方法来确定信息的来源和真实性。本文分析了将广播新闻内容发布到社交媒体平台的过程、开放标准的作用、验证来源时加密元数据与水印的相互作用，以及可能成功与失败的场景。我们得出结论：由来源与真实性联盟（C2PA）开发的加密认证元数据开放标准，以及由美国高级电视系统委员会（ATSC）开发的音频和视频水印开放标准，非常适合解决广播来源问题。我们提出了利用这些标准实现最佳效果的方法。