NS

Northstar Demo

Ephemeral Rollup Session Flow + Live Price Feed Telemetry

Live Pyth feed, ER session controls, Vercel-ready Next.js app

Clearly show the Northstar execution path, not just the price.

This demo keeps the live oracle view visible, then automatically mirrors each fresh price update into ER once the wallet has armed the Northstar session. The page shows both the source feed and the ER publication path in one place.

Live SOL / USD
--

Waiting for the next oracle delta

Oracle latency
--

Hermes publish_time to UI fetch arrival

UI cadence
--

Observed fetch interval for recent updates

Execution path
Inactive

Grid 1 • auto-publisher wallet disconnected

Live oracle telemetry
Pyth latest-price polling rendered with Sonic DS styling.
Feed 0xef0d8b...
feed healthy

Publish time

--

Confidence

--

Fetch cadence

--

Latest update stream
This makes the speed visible instead of hiding it behind a static quote.

Waiting for the first oracle sample.

ER auto-publisher
Once the ER session is ready, each fresh Hermes price is automatically published into ER as a memo transaction.
waiting for session
healthy

Last ER price

--

Last ER publish

--

Latest ER tx

--

Recent ER publishes

Waiting for the first ER publish attempt.

Execution endpoints
Hermes remains the source feed. ER receives the mirrored publication stream after the session is armed.

Memo program

MemoSq4gqABAXKb96qnH8TysNcWxMyWCqXgDLGmfcHr

Solana L1 RPC

https://api.devnet.sonic.game

ER RPC

https://ephemeral.devnet.sonic.game

Portal program

74iiMCqFw1afWyp3tdh9pUqfRfCRq7gfdC2YZoNGpovt

Grid ID

1