Add Arbitrum SDK metadata

[es3298]

Summary

• add official GitHub and npm links to the Arbitrum SDK listing
• fill current release metadata from the official OffchainLabs SDK repo/package
• replace the mojibake hyphen in the description with plain cross-chain

Sources

• Arbitrum SDK docs: https://docs.arbitrum.io/sdk
• Official SDK repo: https://github.com/OffchainLabs/arbitrum-sdk
• GitHub release v4.1.0 published 2026-06-24: https://github.com/OffchainLabs/arbitrum-sdk/releases/tag/v4.1.0
• npm package latest 4.1.0: https://www.npmjs.com/package/@arbitrum/sdk

Validation

• Import-Csv listings\specific-networks\arbitrum\sdks.csv parses 18 headers and 81 rows
• parsed actionButtons for arbitrum-sdk as JSON
• git diff --check

Reward address: if this qualifies for the bounty after review, please tag @es3298 and I will provide the ERC20 Ethereum Mainnet USDC/USDT address.

[USS-Supervisor]

Hi @es3298 - this PR is stale, and review should wait until required CI is passing. Current status: no checks reported on the 'es3298/arbitrum-sdk-metadata' branch. Could you please fix or trigger CI and update the PR?

[USS-Supervisor]

Hi @es3298 - closing this stale PR for now because required CI is still not passing. The next step after my previous Supervisor ping was on the PR creator side, and the PR stayed unattended for more than 7 full days after that ping with no meaningful update. Please feel free to reopen or recreate it once the blocker is addressed and the PR is ready again.

[eugene17kotov]

@es3298
Thanks for the contribution!

A couple of repository conventions should be followed here:

• Please keep canonical offer data in references/offers/... and use network listings only for network-specific overrides (such as chain, network-specific URLs, contract addresses, or other values that actually differ for that network). Avoid duplicating canonical metadata directly in listings/....

• Please also pay close attention to which fields are intended to be maintained manually. Metadata fields such as latestKnownVersion, latestKnownReleaseDate, maintainer, and license are maintained automatically and should not be edited manually in PRs.

[github-actions]

Summary

Status	Count
🔍 Total	2
🔗 Unique	2
✅ Successful	1
⏳ Timeouts	0
🔀 Redirected	0
👻 Excluded	0
❓ Unknown	0
🚫 Errors	1
⛔ Unsupported	0

Errors per input

Errors in ./references/offers/sdks.csv

• [404] https://docs.arbitrum.io/sdk (at 1:1) | Rejected status code: 404 Not Found

Full Github Actions output

[github-actions]

Summary

Status	Count
🔍 Total	2
🔗 Unique	2
✅ Successful	2
⏳ Timeouts	0
🔀 Redirected	0
👻 Excluded	0
❓ Unknown	0
🚫 Errors	0
⛔ Unsupported	0

Full Github Actions output

[USS-Supervisor]

Verdict: APPROVE
Risk: LOW
Summary: The current diff only updates the existing Arbitrum SDK canonical offer row in references/offers/sdks.csv: action buttons now point to the official GitHub repo and npm package, the description hyphen is normalized, and price whitespace is trimmed. CSV structure is unchanged, no slugs or rows were added/removed, and the parsed actionButtons cell is valid Markdown-link JSON. Required validation is SUCCESS, and current-head link-check run 30090020710 reports 2/2 successful links with 0 errors/timeouts.
Findings: None.
Confidence: HIGH