Stampery provides blockchain data certification services. They enable users to certify the existence, integrity, and ownership of data used on the Bitcoin and Ethereum blockchains. Because of the distributed and decentralized nature of the blockchains, the data on it can be verified by anybody at any time. Stampery uses the information transmitted on the bitcoin blockchain to generate dependable proof of existence, proof of integrity, and proof of ownership. Stampery's API lets users prove the existence, ownership and integrity of all their data by inserting unique identifiers for their files and data directly into the blockchains. The timestamps created by Stampery's API can be verified independently by anyone.

Tierion is developing a blockchain solution for verifying data. Tierion's platform will be aimed for businesses and developers. "Proof" will allow businesses to prove the integrity and timestamp of data without depending on a trusted third-party. "Chainpoint" will enable developers to anchor data to the blockchain; giving them the ability to create a verifiable audit trail for data, and timestamp important documents.
Tierion's network is powered by the TNT token.