Ensuring consistency in distributed incremental content publishing

A method, comprising:

• receiving a first event comprising a first change to content that is replicated across a set of content sources;
• calculating, by a computer system associated with a content source in the set of content sources, a first proof of work from the first change;
• during calculation of the first proof of work, receiving the first proof of work from another content source in the set of content sources;
• and
• upon verifying the received first proof of work, recording the first change by storing, in the blockchain, a first block comprising the first change and the first proof of work.

A non-transitory computer-readable storage medium storing instructions that when executed by a computer cause the computer to perform a method, the method comprising:

• receiving a first event comprising a first change to content that is replicated across a set of content sources;
• calculating a first proof of work from the first change;
• broadcasting the first proof of work for verification by other content sources in the set of content sources;
• and
• recording the first change in the content by storing, in a blockchain, a first block comprising the first change and the first proof of work.