
CHAINPOINT
Anchor an unlimited amount of data to multiple blockchains.
CHAINPOINT launched on November 29, 2017 with 72 votes, #717 of 3,137 launches that month and more than 50% of that year's launches. The site was still online in September 2026, 8 years on.
What it does
CHAINPOINT is an open standard for creating a timestamp proof of any data, file, or process.
Chainpoint is an open standard for anchoring data to a blockchain to create a timestamp proof of any data, file, or series of events.
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. Chainpoint Nodes have an HTTP API. You can interact with Nodes using any programming language that supports…from chainpoint.org
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