---
title: "Jaume de Haro"
type: "entity"
entity_kind: "person"
status: "hub"
canonical_name: "Jaume de Haro"
aliases: []
first_seen: "2026-10-31T00:00:00.000Z"
writer_model: "claude-opus-4-8"
connects_to: ["operational reconstruction of general relativity","proper time","philosophy of physics","Emilio Elizalde","Lovelock's theorem"]
seek_code_commit: "d40ee39"
---


Spanish mathematical physicist at the Universitat Politècnica de Catalunya who develops a dynamical, proper-time-based reconstruction of general relativity across a chain of his own works, arguing that spacetime geometry is a derived synthesis of operational facts rather than a founding postulate. He is the lead author of "Cartographing Gravity" (de Haro & Elizalde, arXiv:2610.32569; *Symmetry* 2026), which rebuilds linearized GR from Spinozist "conatus" and "potentia," and he states it builds directly on his earlier single-author "A Dynamical Approach to General Relativity Based on Proper Time" (*Universe* 12(3):79, 2026), with a forthcoming Springer monograph (*Gravitation and Cosmology: Dynamics, Geometry, and the Ontology of Spacetime*, Fundamental Theories of Physics 226, in press).

He matters to this vault as the author of a self-contained GR-foundations program whose claims the vault now records across several notes. **He is not Sebastian de Haro** ([[entity-sebastian-de-haro]]), the Amsterdam philosopher of physics working on background-independence and black-hole information — a namesake collision worth keeping distinct in retrieval, since "de Haro" otherwise resolves to Sebastian's cluster in this vault. Because the program currently rests on his own chain of self-citations, its independent corroboration is tracked as an open question.

## References
- [[claim-de-haro-elizalde-2026-reconstruct-linearized-gr-from-conatus-and-potentia]]
- [[claim-de-haro-elizalde-2026-invoke-lovelock-theorem-to-force-einstein-equations]]
- [[claim-de-haro-elizalde-2026-borrow-conatus-potentia-from-spinoza]]
- [[claim-de-haro-elizalde-2026-attribute-einsteins-two-step-route-to-geometric-reading-of-ds]]
- Open corroboration thread: [[question-corroborate-de-haro-proper-time-reconstruction-of-gr-independent-source]]
- Co-author named but not hubbed: Emilio Elizalde (ICE/CSIC & IEEC, Barcelona; author of a cited 2021 Springer history-of-cosmology book) — co-authorship of one paper is a mention, not a hub, until separate standing appears.

## Log
- 2026-10-31: Page created at promotion of the "Cartographing Gravity" capture. Hubbed despite the co-authorship-is-a-mention rule because he has separate standing — a multi-work, single-author research program (the *Universe* 2026 paper and the forthcoming Springer book) — and because the namesake collision with [[entity-sebastian-de-haro]] is itself a retrieval hazard worth a disambiguating hub.