SIGIL MACHINE is a generative work rendered entirely in GLSL fragment shaders - no pre-rendered frames, no texture assets, no external libraries. Every visual element is computed analytically from signed distance functions (SDFs) evaluated per pixel at runtime. The composition operates on two registers simultaneously. At the center, a dense mechanical mandala constructed from polar-domain SDF primitives - vesica arcs, wave-modulated rings, rotational DF folding, and Lissajous-derived orbital paths - rotates across five independent angular velocities, each layer phase-shifted to prevent periodicity. The system never exactly repeats. Outer bands carry scrolling typographic debris, pulsing dot constellations, and parametric triangle arrays that migrate across screen-space on looped modular coordinates, colliding and separating in asymmetric rhythm. Color is generated through two independent Inigo Quílez cosine palette functions operating on different frequency and phase vectors, driven by polar angle, radial distance, and time simultaneously. No color is hardcoded - hue, saturation, and luminance emerge entirely from the mathematics of the coordinate field. The work belongs to an ongoing research practice at the intersection of real-time computational geometry, cryptographic aesthetics, and generative visual systems. The SDF grammar used here draws from the same formal language as the secp256k1 curve constructions underlying elliptic-curve cryptography - discrete, deterministic, yet producing outputs of irreducible visual complexity. Technical metadata (for on-chain fields): Medium: GLSL fragment shader, WebGL 1.0 Duration: 30s Resolution: 1280x720 Frame Rate: 60 fps Size: 168 MB Format: MP4