Tierion

Providing enterprise customers a blockchain-based data registry and verifiable credential model in order to make data and processes independently verifiable. With blockchain, you can create entries to prove that data existed in a certain state at a certain time. From that point on, anyone with access to the data can verify it against the blockchain version. Future changes to the data will show up like a sore thumb and can be detected quickly by any Connect-enabled system. The Factom blockchain creates immutable evidence by publishing timestamped evidence of your data and documents, preventing costly disputes. Evidence is preserved permanently on the Factom blockchain, ready to review whenever you need to prove validity. The Factom blockchain provides a strong public witness. As entries are agreed upon by the growing network of computers running the protocol, the witness to their proofs becomes irrefutable.

Anchor an unlimited amount of data to the Bitcoin blockchain. Verify the integrity and existence of data without relying on a trusted third-party. Chainpoint links a hash of your data to a blockchain and returns a timestamp proof. A Chainpoint Node receives hashes which are aggregated together using a Merkle tree. The root of this tree is published in a Bitcoin transaction. The final Chainpoint proof defines a set of operations that cryptographically link your data to the Bitcoin blockchain. A Chainpoint proof contains the information to verify that the hash of some data is anchored to a blockchain. It proves the data existed at time it was anchored. Chainpoint proofs can be verified without reliance on a trusted third party.