一个高而左右对称的赛博印记（cybersigilism）徽记，由弯曲的荆棘藤蔓组成，顶端有一颗星，是黑色针线纹身图稿。成对的带刺枝条沿菱形相连的中轴两侧向上生长，另有四颗小星光和底部一根长尖刺，底色为米白纸张。可作为背部或脊柱纹身参考，也可调整枝条数量。

A cyber sigilism spine tattoo design, drawn as flat black tattoo flash on a plain smooth off-white paper ground, viewed straight on. One tall, perfectly mirror-symmetrical ornament runs down the exact vertical centre line, occupying the middle 45% of the canvas width and about 85% of its height, with wide empty margins on every side. No text, no letters, no numbers. Structure from top to bottom: a small pointed crown at the top, a slim halo of two thin crossing arcs ending in needle points. Below it a thin central spine made of a stack of seven elongated diamond vertebrae, each drawn as an open outline, joined by a hairline axis. The vertebrae are large in the middle and shrink gently toward the top and the bottom. From each vertebra, pairs of long thin curved thorns sweep outward and slightly upward and downward like branching thorn stems, each one swelling slightly in the middle and tapering to a needle point at both ends. Small hooked barbs sprout from the stems, and the tips split into double points. The left side exactly mirrors the right. At the pelvis end the spine opens into a pair of sharp downward-curving spikes, with a pointed teardrop-free tail below them. Two or three tiny four-pointed sparkle stars float in the gaps beside the spine. Line quality: needle-thin, crisp, uniform ink black lines with razor-sharp ends, clean and easy for a tattoo artist to trace. Keep generous, open gaps between all branches so no lines clump together or merge into dark patches. Lines never cross messily. No solid black fills, no thick tribal bands, no shading, no gradients, no chrome, no glow, no 3D, no shadows, no texture. Black #0A0A0A on off-white #F4F1EA only.