Robinhood Chain · 4663 · settles to Ethereum

Somebody has to check
the state roots.

Robinhood Chain posts a claim to Ethereum roughly every 32 minutes: this is the state of the chain. Verderer runs an independent node that re-derives that state from L1 data and says, in public and with a signature, whether it agrees.

Read the ledger The speed layer What we cannot do

assertions verified315every one re-derived locally

discrepancies found0the chain has been honest

challenge window6.36daysconfirmPeriodBlocks = 45,818

feed lead over public rpc+840msp50 of 1,024 samples

The constraint, stated here rather than in a footnote

Robinhood Chain’s fraud-proof system is permissioned. validatorWhitelistDisabled() returns false, so the challenge manager rejects every caller outside a two-address allowlist — of which 1 is active. L2BEAT classifies the chain as Other, not a Rollup, for this reason.

Verderer cannot challenge on your behalf. It can prove, publicly and cryptographically, within minutes, that a posted state root disagrees with an independent replay — and it has 6.36 days to make that fact impossible to ignore before the root finalises. Escalation after that is social, and out of band. Anyone claiming more is lying.

Why one node covers two markets

Verifying the chain and racing it need the same machine.

A watchtower has to hold a fully synced node that ingests the sequencer feed at the source and reconstructs state block by block. That is the identical hardware a sniper wants. We already hold the freshest view of the chain in order to check it; selling that view costs us almost nothing on top.

Layer one · trust

The assertion nobody was checking

An optimistic rollup is exactly as safe as the number of people actually recomputing its assertions. Arbitrum’s model needs one honest validator out of N — but here the whole of N sits inside the operator’s allowlist. There is no outside party in the model at all.

We cannot stop a bad assertion at the protocol level. We can turn a silent failure into a loud one, on the first pass, with a signature anyone can check.

live since day oneno permission required

Layer two · speed

Proximity, not privilege

Everyone trading this chain reads it through the operator’s public RPC. We read the sequencer feed directly, which is measurably earlier — 840 ms at the median, from an ordinary machine over the public internet.

The sequencer remains the only orderer. We sell closeness to the chain and freshness of data. We do not sell queue position, because nobody can.

feed relayturbo rpcbundleslaunch radar

Live

The ledger

Every assertion Robinhood has posted to Ethereum, and what an independent replay says about it.

liveFull ledger

Assertion	Verdict	Machine	L2 block	Send root (claimed → local)	Verify lag	Posted	L1
0xc6950972…5123	affirmed	finished	21,908,400	0x10711efe36…=0x10711efe36…	28.66s	28m ago	0xac2f15…c158
0x6f4baa11…0181	affirmed	finished	21,889,183	0xa9369773bd…=0xa9369773bd…	704.69s	1h ago	0x145d64…53df
0x34e1f578…01ed	affirmed	finished	21,869,887	0xa9369773bd…=0xa9369773bd…	2612.39s	1h ago	0x62727d…8590
0x93ddb61e…6347	affirmed	finished	21,850,788	0x832256bf74…=0x832256bf74…	4544.09s	2h ago	0xead66d…dd0c
0x436572cc…c665	affirmed	finished	21,831,923	0x832256bf74…=0x832256bf74…	6463.78s	2h ago	0x95e73e…c052
0xa8ed58a9…92e0	affirmed	finished	21,812,518	0x832256bf74…=0x832256bf74…	8383.48s	3h ago	0x5fd3c1…49f5
0xa9903394…aca0	affirmed	finished	21,793,226	0x832256bf74…=0x832256bf74…	10303.18s	3h ago	0xa01a81…4782
0x3bed4765…e02c	affirmed	finished	21,774,291	0xe1c01df974…=0xe1c01df974…	12222.87s	4h ago	0x6789f5…2b2e

Measured, not asserted

What the chain is doing right now

Read live from the rollup contracts on Ethereum and from our own node. Nothing on this page is a cached marketing figure.

chain head21,944,632L2 block

observed block interval127msp50 between feed frames

gas price0.027582gweino priority-fee market exists

sequencer batches56,937posted to L1

delayed inbox depth28queued, not yet consumed

force inclusion delay4daysa backstop, never a trading route

transactions decoded441,085from the feed, this process

median verify lag300168.70sL1 timestamp to verdict

WASM module root 0xc10cd7ec…29dc97latest confirmed 0x1bdd0d3c…e53409updated 8s ago

Layer two

Bundles on a chain that has none

Robinhood Chain has one sequencer, no public mempool and strict first-come-first-served ordering. A Flashbots-style bundle is impossible here, because it needs a builder that can permute a block. But two of the three things a bundle is bought for do not need permutation at all.

How it works

Atomicity

Collapse N actions into one transaction against your own executor contract and the EVM guarantees it absolutely — a stronger guarantee than a builder’s promise of inclusion.

Conditionality

eth_sendRawTransactionConditional is live on this chain. The sequencer drops your transaction before inclusion, at zero gas, if the state you simulated against has moved.

Position

This one is a pure latency race, decided by arrival time. We sell proximity to the sequencer and nothing else. No tier, at any price, moves you up the queue.

bundles accepted0this process

rejected free of charge0preconditions caught them pre-inclusion

inclusion latency p50no datasubmit to seen in feed

burst contiguityno datameasured, never promised

Access

The truth is free. The latency is not.

Attestations, daily roots, the assertion ledger and chain status need no key and never will. A watchtower behind a paywall is not a watchtower. The paid tiers buy throughput and freshness on the speed layer, which is what funds the node.

Stake for access

Tier	$VERD stake	per month	feed delay	rpc / s	simulate / min	bundles / min	Includes
Public	none	—	2,000 ms	5	—	—	Delayed feed and the full attestation history. Free, forever, no key required.
Pro	250,000	$400	real time	100	600	60	Real-time feed, launch radar, simulate against head state, and the bundle relay.
Turbo	2,000,000	$2,500	real time	1,000	6,000	600	Everything in Pro plus archive reads, unthrottled burst submission, and priority egress.
Colocated	contract	—	real time	10,000	60,000	6,000	Cross-connect in the sequencer datacentre. Latency SLA, dedicated capacity, contract terms.

No tier grants ordering priority, front-running capability or protection from a faster participant. Those are not products we can honestly sell on this chain. The full list of what we cannot do →

Robinhood Chain got a sequencer, bridges and a hundred protocols. It did not get a witness.

Every month this node runs is a public argument for opening the allowlist: a year of doing a validator’s work for free, asking only for the right to challenge. Until then the ledger stays open, the alerts stay quiet unless they should not be, and the silence itself is the product.

Read the ledger Read the spec