cyb/prysm/atoms/specs/neuron.md

identity and agency atom in prysm

the primitive for any actor in the cybergraph — human, AI, sensor, autonomous agent. renders as a bech32 address. a leaf in the element tree (leaf type: address). the neuron atom is pure identity — it knows the address and nothing else. molecules (neuron-card, avatar, address) compose it into richer displays

protocol role

neuron is a leaf in the element tree $\mathcal{T}$ (§7 of prysm/layout). leaf type: address. it has no sub-organelles. its membrane constrains it, it occupies space based on address format and size, membrane places it

sizing

all values in spatial quanta $g$

$s_{min}$: short $(6g, 2g)$, full $(20g, 2g)$, hash-only $(6g, 2g)$

height is always fix $2g$ — neuron renders as a single line at body size

address formats

format selection is a parameter — the membrane or molecule determines which format is appropriate for the context. short is the safe default across all zones

occupy

$$s_w = \text{chars}(\text{address at format}) \cdot \text{char\_width}(\text{body})$$

$$s_h = 2g$$

neuron is always single-line. it does not wrap. if $s_w > c_w$, neuron switches to the next shorter format (full → short → hash-only) until it fits within the constraint. if hash-only still exceeds $c_w$, neuron truncates with ellipsis

verified = true appends vector(verified, $2g$) with $g/2$ gap after the address string, increasing $s_w$ by $2g + g/2$

color

states

state transitions: $150\text{ms}$ ease

3D

in the 3D extension (§11 of prysm/layout):

• neuron renders on a plane at the same $p_z$ as its membrane
• neuron always faces the actor (billboard)
• size in quanta is constant in world space

ECS

• Entity: neuron organelle
• Components:
  • Sizing { width, height } — computed from address string at format
  • NeuronId { bech32 } — the full bech32 address string
  • NeuronFormat { full | short | hash_only } — resolved format after constraint check
  • NeuronVerified { bool } — appends verified ion when true
  • TextColor { color } — from palette, #d7d7d7 default
• System: neuron participates in OccupySystem as a leaf — computes size from formatted address string; falls back to shorter format if width exceeds $c_w$