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Ankr Staking

About

Ankr Staking is a multi-chain liquid staking platform that issues "Internet Bonds" - synthetic tokens representing staked assets across Ethereum, Avalanche, Polygon, BNB, and other Proof-of-Stake networks. Users can stake native tokens to receive liquid staking tokens that maintain exposure to staking rewards while enabling DeFi composability. The platform provides an easy staking experience without requiring users to run validator nodes, making passive income from PoS networks accessible to non-technical users.

Where Does Yield Come From?

Ankr Staking generates yield from the built‑in staking rewards of Proof‑of‑Stake blockchains like Ethereum, Avalanche, Polygon, and BNB. Users stake their tokens and receive “Internet Bonds” – liquid tokens that represent their staked position and earn rewards, without needing to run a validator node themselves.

Rewards are delivered through two kinds of tokens:

  • Reward‑bearing certificates (for example aETHc) – these tokens slowly increase in value as staking rewards accumulate inside them.
  • Reward‑earning bonds (for example aETHb, aAVAXb) – these tokens automatically add new rewards to your balance every day (a process called “rebasing”).

On some networks, such as Avalanche, the platform takes a 2% service fee from the staking rewards. It also keeps a 5% instant liquidity pool, which covers the cost of letting users withdraw immediately instead of waiting for the normal unstaking period.

You can earn extra yield by using your Internet Bonds in other DeFi applications. For instance, you can lend them, provide liquidity in trading pairs, or put them into yield‑farming programs. This stacks additional income on top of the base staking rewards.

When you want your original tokens back, you have several choices:

  • Direct unstaking – wait for the blockchain’s usual lock‑up period.
  • Instant liquidity pool – withdraw right away from the pool mentioned above.
  • Futures markets – trade your staked position on partner platforms like Bounce Finance.

Audits

Audit / DateFindingsVerdict
Beosin16-02-2022 - 09-03-2022
  • Critical2
  • High0
  • Medium2
  • Low1
  • Info6
The audit revealed serious security vulnerabilities in Ankr's bridge implementation, but all critical and most other issues were fixed before deployment, leaving only one minor algorithmic discrepancy acknowledged by the project team.
Beosin14-09-2022 - 23-11-2022
  • Critical0
  • High1
  • Medium5
  • Low9
  • Info7
The audit uncovered one high-risk vulnerability alongside multiple medium and low-severity issues, with the majority of findings addressed by fixes prior to the report's publication. Residual acknowledged items represent intentional design choices that do not pose immediate security threats but involve centralization trade-offs.
Veridise13-02-2023 - 20-02-2023
  • Critical0
  • High2
  • Medium1
  • Low3
  • Info7
The audit identified two critical high-severity vulnerabilities that could lock user funds or enable double claiming of rewards, but most issues were reportedly fixed before deployment, leaving residual medium and low risks around overflow and validation gaps.
Beosin06-06-2022 - 12-07-2022
  • Critical0
  • High1
  • Medium3
  • Low2
  • Info1
The audit revealed significant centralization risks and several technical vulnerabilities, most of which were addressed with fixes, though one centralization concern remains acknowledged but unresolved, indicating residual governance dependencies.
Beosin10-03-2022 - 14-04-2022
  • Critical0
  • High3
  • Medium3
  • Low2
  • Info4
The audit identified several critical design issues around operator dependencies and centralization, with most findings addressed but three acknowledged risks remaining in production. Users should be aware of the operator authority and minimum stake limitations that could affect withdrawals.
PeckShield09-07-2022
  • Critical0
  • High1
  • Medium1
  • Low0
  • Info1
The audit found one high-severity coding bug and one medium-severity administrative trust issue, both addressed by the team, indicating generally sound code with typical DeFi governance risks noted.
Veridise19-01-2023 - 03-02-2023
  • Critical1
  • High1
  • Medium2
  • Low7
  • Info6
The audit uncovered two critical/high severity vulnerabilities that could lead to double-charging users and locked funds, but the majority of issues were addressed before publication. Overall, the review indicates thorough scrutiny with most findings resolved, though a few lower-risk items remained open.
Beosin10-11-2020 - 25-11-2020
  • Critical0
  • High0
  • Medium0
  • Low0
  • Info0
The audit found no security vulnerabilities in the Stkr smart contracts, with all tested categories passing inspection, though some functions were noted as still under development at the time of the audit.
Beosin09-11-2022 - 15-11-2022
  • Critical0
  • High1
  • Medium1
  • Low1
  • Info1
The audit found no critical vulnerabilities, with the single high-risk issue already fixed; however, centralization risks and elevated operator privileges remain inherent design characteristics that users must accept.
Salus28-04-202319-05-2023
  • Critical0
  • High0
  • Medium5
  • Low4
  • Info6
The audit revealed moderate security concerns primarily around centralization and access control, with most findings addressed by the Ankr team before deployment, indicating reasonable security posture for the staking protocol.
Halborn30-07-2024 - 12-08-2024
  • Critical1
  • High1
  • Medium1
  • Low4
  • Info5
The audit uncovered one critical vulnerability but all significant findings were promptly resolved before the report's finalization, resulting in a secure implementation of Ankr's cross-chain staking system with only minor informational issues remaining.
Beosin15-03-2022 - 24-03-2022
  • Critical0
  • High1
  • Medium0
  • Low3
  • Info3
Beosin's audit found one high-risk vulnerability (excessive operator authority) that was fixed, along with several low-risk and informational issues, leaving acknowledged centralization risks due to retained owner/operator control over key contract parameters.
Beosin24-04-2022 - 15-06-2022
  • Critical0
  • High2
  • Medium1
  • Low3
  • Info2
The audit revealed significant centralization risks and signature replay vulnerabilities, with two high-severity findings (one fixed, one acknowledged) and several lower-risk issues; while mitigations were applied, residual acknowledged risks remain in the contract's operational model.

Legal

Legal form

Corporation (Incorporated)

Registration jurisdiction

State of California, United States

Status and notes

Operating entity is Ankr Inc., with Terms of Use (effective February 10, 2020) and Privacy Policy available on the website. Governing law is California law with exclusive jurisdiction in San Francisco County, California or federal court for the Northern District of California.