Statics Dollar volatile profiles value collateral through a Chainlink-compatible ETH/USD adapter. The adapter applies explicit staleness, range, and sequencer checks before any price is used.
#The ETH/USD feed
The initial volatile profile uses a verified Chainlink-compatible ETH/USD price feed for collateral valuation. The adapter rejects stale or out-of-range answers rather than trusting them silently.
#Sequencer uptime
On L2 chains, a verified sequencer-uptime feed is required. A sequencer outage can cause stale prices that look valid, so the Dollar gates on sequencer liveness and enforces a recovery interval after restoration.
sequencer down -> volatile issuance blocked
sequencer up -> must wait SEQUENCER_GRACE_PERIOD before unblocking#Peg bands
Oracle-derived bands bound profile behavior and revision. The active pegged
profile uses a 0.95–1.05 band; volatile profiles use a configured transition
band that drives profile state changes under solvency and recovery.
#Grace period
After a sequencer restoration, the configured grace period must elapse before
issuance unblocks. This prevents acting on prices that lag the sequencer restart.
The grace period is a deployment input (SEQUENCER_GRACE_PERIOD).
Dollar safety depends on configured oracle, sequencer, collateral, health, and governance parameters. A misconfigured or manipulated feed can impair or halt a profile — by design, that impairment latches ordinary exits until 48 continuous healthy hours are checkpointed.