What is UTS?
Universal Timestamps (UTS) is a superset of the OpenTimestamps protocol, designed to provide a decentralized, trustless way to prove that data existed prior a specific point in time.
By leveraging the security and immutability of public blockchains, UTS allows anyone to create cryptographic proofs of existence that are publicly verifiable without relying on a trusted third party.
Public Good Infrastructure
The cost of creating on-chain attestations is covered by the protocol operators, making UTS free for users.
The Calendar Server
The calendar server batches incoming timestamp requests into Merkle trees and periodically attests the tree roots on-chain.
This aggregation allows UTS to batch thousands of timestamps into a single on-chain transaction, making it cost-effective.
Current operational calendar servers:
- lgm1.calendar.test.timestamps.now (Testnet)
Learn More
- Stamp via CLI - Get your first timestamp from CLI
- Architecture Overview — How the system works
- Reference Book — Detailed technical documentation