Paper license notice Spectral bounds for the number of Robin candidates Eduardo Vega — Circulation draft revised September 15, 2026 Copyright © 2026 Eduardo Vega. This paper is licensed under the Creative Commons Attribution 4.0 International License (CC BY 4.0): https://creativecommons.org/licenses/by/4.0/ Legal code: https://creativecommons.org/licenses/by/4.0/legalcode You may share and adapt the licensed material, including for commercial purposes, with appropriate attribution, a link to the license, and an indication of changes. Do not imply endorsement by the author. The full license governs these permissions. Suggested attribution: Eduardo Vega, “Spectral bounds for the number of Robin candidates,” circulation draft revised September 15, 2026, Arithmetic Connectome, CC BY 4.0. Paper page: https://arithmeticconnectome.com/robin PDF: https://arithmeticconnectome.com/papers/robin-circulation.pdf Scope: this notice covers Eduardo Vega's copyrightable contributions to the identified paper. Any third-party material remains subject to its own rights and notices. This notice does not license the website, software, other papers, research archives, or the private repository. The paper's draft status and mathematical scope are unchanged by licensing. This separate notice identifies the byte-unchanged reviewed PDF by SHA-256: 9438e4b5f42793274e64824de8595f77c2b455bac74448980585ca18fb48b737