Arbitrum airdrops: the ARB precedent and what is live

The ARB distribution in numbers

The Arbitrum Foundation’s eligibility and distribution page is the primary record. Our summary lives on the Arbitrum airdrop page; the headline facts are these.

• Feb 6, 2023Snapshot, at Arbitrum One block 58642080
• Mar 23 to Sep 24, 2023Claim window; the page now says ARB is no longer claimable
• 11.62%Of supply to users (1.162 billion ARB)
• 1.13%To DAOs (113 million ARB), plus the Protocol Guild

The page also records two details people forget. ARB is minted and claimable only on Arbitrum One, not on Ethereum mainnet, so the claim transaction needed ETH on Arbitrum One for gas. And the foundation’s anti-scam note states plainly: there is no presale, and the only official site is arbitrum.foundation.

How the points rubric worked

Rather than a flat threshold, the foundation scored each address. Each qualifying action counted once and only if it happened before the snapshot. Points were capped at 15, and an address needed at least 3 to receive anything. The page gives examples of what scored on Arbitrum One:

The payout side was equally specific. On a pre-Nitro basis, 3 points meant 1,250 tokens and 12 or more points meant 10,250. Points earned before Arbitrum Nitro launched on August 31, 2022 counted double, and points earned only after Nitro were halved, which put the minimum at 625 tokens. Sybil handling was written down too: one point was removed if all transactions fell within 48 hours, or if the balance was under 0.005 ETH and the wallet used no more than one contract, and addresses flagged as Sybil in the Hop bounty programme were disqualified.

What the design teaches

This is our judgement, based on those documented rules.

Time beats volume

Distinct active months and early activity were rewarded. Cramming transactions into a weekend scored badly under the anti-Sybil rule.

Dust wallets were anticipated

A low balance with a single contract was penalised, which is why a pile of near-empty addresses was never an efficient plan.

The retroactive part was the strength

Eligibility looked backwards to a past block, so activity after the snapshot added nothing.

The window was long, and still closed

Roughly six months to claim. Not claiming meant losing it.

One more point is worth stating because it is often missed. The foundation allocated a separate share to DAOs building on Arbitrum, with criteria that included launch date, native versus multichain status, TVL, activity, transaction volume and consistency. Ordinary users could not farm that pool. It tells you that a distribution is rarely a single pot: read the allocation table before assuming you compete with everyone.

Also note what the page does not say. It does not say what happened to unclaimed tokens, and it gives no future-airdrop commitment. We therefore do not infer a second drop from the first. When a guide on another site claims that a follow-up is coming, ask where in the foundation documentation it is written.

For the general method behind such rubrics, read our airdrop farming guide and the page on retroactive airdrops. The same pattern of dated snapshot plus tiered activity shows up in Optimism’s distributions, with a different set of criteria.

What is live on Arbitrum now

No ARB distribution is open. The item our tracker marks active on Arbitrum is Variational, a project that uses the chain rather than a network programme. According to its docs, a $VAR token is planned for Q4 2026 with no exact date published, 32% of supply is to be airdropped proportionally to Omni points holdings and fully unlocked at launch, and the points programme started on December 17, 2025 with weekly distributions concluding no later than the end of Q4 2026. No snapshot date is published, and the other allocations include 18% for an ecosystem reserve and 50% for team and investors, with a 12-month lock followed by an unlock over at least three years.

Bridge, explorers and chain data

The Arbitrum documentation names its own bridge, the Arbitrum Portal for finding apps, and a chain info page. That page lists Arbitrum One with chain ID 42161 and block explorers Arbiscan (arbiscan.io) and Blockscout, and Arbitrum Nova with chain ID 42170 and Blockscout. It also notes that Nova Arbiscan is no longer supported for Nova after January 31, 2026, so use Blockscout for Nova.

The Arbitrum Foundation’s website, arbitrum.foundation, is the domain the airdrop page names as the only official site. We did not see any current claim or wallet prompt on it when we checked. Wallets and custody work as on Ethereum, covered in our Ethereum guide; the key difference for airdrops is that fees are paid in ETH on Arbitrum One.

As background, ethereum.org’s layer-2 page describes networks that store their data on Ethereum as rollups and suggests starting with small transactions and doing due diligence on each network.

Two practical consequences follow from the chain data. First, Arbitrum One and Nova are separate chains with different IDs and explorers, so a transaction on one will not appear on the other’s explorer. When a project says “Arbitrum”, check which one it means, and confirm the chain ID in your wallet matches the number in the docs. Second, the Arbitrum bridging documentation says token makers choose between standard, generic-custom and custom gateways for ERC-20 tokens, so check the token address and the route before you move anything of value, and test with a small amount first.

Fees and the withdrawal delay

The gas and fees page describes a total fee made of two parts, summarised below.

Fees are paid in ETH, and the estimate your wallet shows can change because the L1 component moves with the parent chain’s data price. The docs do not give a typical dollar cost, so we do not either.

Exits are slower than entries. The messaging page lists a challenge period of about 6.4 days in its lifecycle table, and also refers to an approximately 7-day period elsewhere on the page, so we treat the figure as roughly a week. The estimator below only does date arithmetic on the 6.4-day figure.

Scam patterns around Arbitrum

The foundation’s own wording is the best summary: no presale, one official site, never share a seed phrase, and ask in the official Discord when unsure. The patterns that follow from it:

• The “ARB claim reopened” page. The window closed on September 24, 2023 and the foundation page says ARB is no longer claimable. A reopening would appear there, not on a lookalike domain.
• A fake bridge or portal. Use the bridge URL from the Arbitrum docs, not one from a post or ad.
• Wrong-explorer trust. A link that displays a transaction for you on an unfamiliar explorer proves nothing. Use the explorers listed on the chain info page.
• Points-programme impersonation. Variational’s eligibility checker is documented at omni.variational.io/points. Anything that asks for more than a normal wallet connection, such as a recovery phrase, is not it.

The general taxonomy is in crypto airdrop scams, and the signs of legitimacy are in how to spot a legitimate airdrop.

Safe setup

1. 1

   Separate roles

   Use a fresh wallet for unfamiliar apps and keep savings elsewhere. The burner wallet guide has the full procedure.

2. 2

   Fund only what you need

   ETH is the fee asset on Arbitrum One. Bridge a small amount and check the estimate in your wallet before the first transaction.

3. 3

   Use documented entry points

   Open the bridge and Portal from the Arbitrum docs. Open a project’s checker from its own docs.

4. 4

   Limit approvals

   Approve only the amount a transaction needs, then revoke afterwards using the token approvals guide.

5. 5

   Plan the exit

   If you will move funds back to Ethereum by the canonical route, plan for about a week.

Further reading: burner wallets for airdrops, revoking token approvals.

What we would check first

For the wider picture, see the ecosystems overview, or the latest airdrops page for new additions.

Written by the airdrop.promo Editorial Team. See how we verify. Educational content only, not financial advice.