ipwb

InterPlanetary Wayback (ipwb) facilitates permanence and collaboration in web archives by disseminating the contents of WARC files into the IPFS network. IPFS is a peer-to-peer content-addressable file system that inherently allows deduplication and facilitates opt-in replication. ipwb splits the header and payload of WARC response records before disseminating into IPFS to leverage the deduplication, builds a CDXJ index with references to the IPFS hashes returned, and combines the header and payload from IPFS at the time of replay. An important aspect of archival replay systems is rewriting various resource references for proper memento reconstruction so that they are dereferenced properly from the archive from around the same datetime as of the root memento and not from the live site (in which case the resource might have changed or gone missing). Many archival replay systems perform server-side rewriting, but it has its limitations when URIs are generated using JavaScript.