  Bitswap is the data exchange protocol for the content-addressed peer-to-peer
overlay network IPFS. During content discovery, Bitswap reveals the interest of
a peer in content to all neighbors, enabling the tracking of user interests. In
our paper, we propose a modification of the Bitswap protocol, which enables
source obfuscation using proxies for content discovery. The proxies are
selected via a random-walk. Enabling content discovery through proxies
introduces plausible deniability. We evaluate the protocol modification with a
simulation. The protocol modification demonstrates enhanced privacy, while
maintaining acceptable performance levels.
