A method and apparatus is presented for reaching consensus on adding data to a
distributed ledger system in which no central trusted authority is available, comprising …

Methods and systems for behavioral profiling, and in particular, utilizing crowd-managed
data architectures to store and manage that profile, are described. In some embodiments, a …

In one embodiment, an instruction is received at a block chain server from a first digital rights
management (DRM) client, the instruction including an instruction to transfer a DRM license …

Methods, systems, storage media for authentication are described. On the methods includes
receiving, at a smart contract on a distributed ledger, a signed authentication challenge. The …

Acryptographic ASIC and method for autonomously storing data into a one-time
programmable memory in isolation. Internal circuitry provides programming pulses of a …

Various embodiments relate to a method performed by a processor of a computing system.
An example method includes determining a first cryptographic algorithm utilized in a first …

A portable token device is described, the token device useable to request transactions
performed over an interchange system. The token device authenticates a user through the …

A blockchain configuration may be used to store a distributed ledger for information security
and accessibility. One example method of operation may include determining a proof-of …

One or more systems implement a plurality of blockchains to track event data. The plurality of
blockchains are arranged in tiered form, and the content and/or integrity of blockchains in …

A computer-implemented method for detecting replay attack comprises: obtaining at least
one candidate transaction for adding to a blockchain, the obtained candidate transaction …