Bioreactor Growth Control

CELL_GROWTH + ENZYME_ACTIVITY: lag → exponential → harvest, feeding and harvesting at the right density. The backbone of cultured production.

Category	Biotech
Template ID	bioreactor-growth-control
Definition	bioreactor_growth_control v1.0
States	4 (initial: lag; terminal: harvested)
Transitions	3
Operators composed	CELL_GROWTH, BIO_MICHAELIS, KO42
Audit clock	on · tick rate 1

What it's for

• Antibody / vaccine production
• Cultured-meat bioreactors
• Microbial fermentation

States

State	Role
lag	initial
exponential	intermediate
harvest	intermediate
harvested	terminal

Transitions

From	To	Operator	Fires when	Proof	Trigger / actions
lag	exponential	CELL_GROWTH	input.growth_rate_hr > input.exp_threshold	required	—
exponential	harvest	BIO_MICHAELIS	input.cell_density >= input.harvest_density	required	—
harvest	harvested	KO42	input.harvest_complete == true	required	—

Operators it composes

Each transition fires a registry operator through the master equation (compute → prove → verify). This template composes:

• CELL_GROWTH
• BIO_MICHAELIS
• KO42

Browse the operators at /operators/; the building blocks a transition calls are the framework's protocols. KO42 is the always-on substrate operator; physics operators carry proof_required: true, so each fire runs the full compute → prove → verify path and lands a verifiable proof digest on your entangled state.

Deploy it

Inspect the full definition, then deploy it onto your state machine. Every fire is Zeqond-stamped onto your entangled state.

# 1. Inspect — the full definition (states, transitions, operators) as served
curl -sS https://zeqsdk.com/api/contracts/templates/bioreactor-growth-control

# 2. Deploy onto your machine (auth: session; body carries your machine slug)
curl -sS -X POST https://zeqsdk.com/api/contracts/templates/bioreactor-growth-control/deploy \
  -H "Content-Type: application/json" \
  -b "<your session cookie>" \
  -d '{"slug":"<your-machine>"}'
# → 201 { "ok": true, "contract": { "id": "…", "currentState": "lag", … },
#         "template_id": "bioreactor-growth-control" }

The deploy path runs the same two-stage validation as the canonical create route (ContractDefinitionSchema.parse + validateContractDefinition against the live registry), writes the creation row onto your entangled state, and schedules the first fire. From there, drive transitions with POST /api/chain/<your-machine>/contracts/<id>/transition or let any triggers fire them autonomously.

Next

• Contract IDE — author, preview, and deploy contracts (this template is in the Templates tab).
• State Contracts — the full contract model: conditions, triggers, pre/post actions, lifecycle.
• Templates Library — every ready-to-deploy contract, grouped by category.
• Protocols — the named building blocks a transition composes.