{"version":1,"kind":"Article","sha256":"","slug":"607","location":"","dependencies":[],"frontmatter":{"title":"TimeChain: A Protocol for Decentralized Time Consensus A Novel Blockchain Architecture Based on Verifiable Delay Functions for Establishing Trustless Temporal Ordering","abstract":"Background: Contemporary blockchain systems rely on external time sources for transaction ordering and consensus, introducing centralization risks and temporal inconsistencies across distributed networks. Objective: We present TimeChain, a novel blockchain protocol that internalizes time as the fundamental consensus primitive through Proof-of-Time (PoT) mechanisms based on Verifiable Delay Functions (VDFs). Methods: TimeChain utilizes VDFs that require sequential computation steps to evaluate while producing outputs that can be validated effectively and publicly. The protocol introduces Chronons as time-based blocks where block production directly represents canonical temporal progression. Results: The proposed architecture eliminates dependency on external time oracles while maintaining cryptographic security guarantees. VDF applications enable computational timestamping, public random beacons, and resource-efficient blockchain operations. Conclusions: TimeChain establishes a new paradigm for distributed consensus where time becomes the core resource, enabling autonomous temporal coordination without trusted authorities.","license":"CC BY","keywords":[],"authors":[{"name":"Oliveira¹ Rafael","affiliations":[],"corresponding":true},{"name":"Bednarski² James","affiliations":[],"corresponding":true}],"date_submitted":"2025-08-23T23:01:47.000Z","external_publication_id":607,"revision_cids":["bafkreicvj2lja6isxce7nj57tezzamhdm6jnrfkzrg5wlvmlsi2t72btoi"]},"mdast":{"type":"root"},"references":{"cite":{"order":[]},"data":{}}}