Blind Predictions for Cosmological Parameters and Dark Energy Evolution prior to DESI DR3 and Euclid DR1

This document registers a formal blind prediction for the key cosmological parameters of the standard and extended cosmological models (Lambda-CDM / w0 wa-CDM). These theoretical values were independently derived and are frozen here prior to the upcoming public data releases of the Dark Energy Spectroscopic Instrument Data Release 3 (DESI DR3) and the Euclid Space Telescope Data Release 1 (Euclid DR1, mid-2027). Predicted parameters:- Baryon energy density (Omega_b): 0.048974682- Dark Matter energy density (Omega_DM): 0.262856933- Total Matter energy density (Omega_m): 0.311831615- Dark Energy density (Omega_Lambda): 0.688168385- Dark Energy to Dark Matter ratio (Omega_Lambda / Omega_DM): 2.618033989- Matter fluctuation amplitude (sigma_8): 0.809016994- Combined clustering parameter (S_8): 0.824816023- Acceleration redshift (z_acc): 0.640343705- Radiation energy density (Omega_r): 0.0000912415- Matter-radiation equality redshift (z_eq): 3416.65 The primary purpose of this submission is to establish an immutable, timestamped chronological priority for these exact numerical values to eliminate any potential look-elsewhere effect or post-dictive bias.