OpenTimestamps is an open-source Bitcoin-based timestamping standard that provides scalable, trust-minimized proof of document existence on the blockchain. OpenTimestamps's Twitter Score is 35 out of 1000 as of October 2026, ranking #27,581 (top 10%) among 493,668 tracked accounts.
OpenTimestamps was founded by Peter Todd and is designed as a standard format for blockchain timestamping, with Bitcoin as its primary attestation layer while remaining flexible enough to accommodate other methods. The protocol relies on calendar servers that aggregate timestamp requests into Bitcoin attestations; according to the official site, these servers are free to use and require no registration or API key. Development of an earlier version received funding from Verisart, as noted by Peter Todd. The client repository's latest release, opentimestamps-client-v0.7.2, was published on December 31, 2024.
OpenTimestamps has built integrations and affiliations across a range of services and platforms, including Eternity Wall, Stampery, Block Notary, Signatura, Bylls, XcooBee, Simpleproof, and Zoho, among others. The account is operated by Peter Todd, as stated directly in its bio. OpenTimestamps has published 534 posts and has been mentioned by 84 accounts a total of 294 times.
Who follows OpenTimestamps on X?
OpenTimestamps attracts a technically oriented audience on the platform. The accounts that follow OpenTimestamps include 172 founders, 26 angel investors and 83 influencers, among them Nic Carter, Udi Wertheimer, Eric Wall, mikedemarais.eth, Matthew Graham and Antonio Garca Martnez agm.eth.