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Layer 1 blockchain

Aleo ticker ALEO

  • No public-data lookups yet
  • 5 reviewed developments
  • 40 cited sources

Summary

Proof of stake with AleoBFT, a committee protocol built from the Narwhal and Bullshark designs. Each committee validator adds one certified batch per round to a shared graph of batches. Every even round has a leader, and the leader's batch (the anchor) is committed once enough validators in the next round link to it. That commit orders everything the anchor reaches into a block. Voting power follows bonded ALEO. Users run programs off-chain and submit zero-knowledge proofs; validators check the proofs and run any public on-chain step. A separate group, provers, solves a proof-based puzzle each epoch for most of the coinbase reward, but provers neither order transactions nor vote. 1235171921

Design

System
Layer 1 blockchainPermissionless proof-of-stake layer 1 with its own blocks, validator committee and native asset. It is not anchored to another chain. What sets it apart is that programs run on the user's side and the network checks a zero-knowledge proof of each run. The package hint is kept.
Settlement family
Its own design
Scarce resource
Stake (proof of stake)
State model
Mixed
Finality
Other
Who makes blocks
Committee validators. The docs cap the committee at the top 200 by total stake, and each member needs at least 10 million ALEO bonded (self-bond of at least 100 ALEO plus delegations). Provable's public API listed 26 members on 27 September 2026. Each even round a leader is picked by a deterministic rule that all validators can compute. Provers do not propose blocks: validators include their puzzle solutions, and since ARC-46 provers must also stake ALEO.
Fork choice
There is no longest-chain rule. Each batch must reference batches from enough validators in the previous round, and an anchor commits when enough validators in the next round link to it. Safety assumes that faulty validators hold less than a third of stake-weighted voting power. On that assumption the docs describe committed blocks as final, with no possible fork. The v4.10.0 node release notes warn that validators and clients that miss a scheduled consensus upgrade risk forking.

Qualifications

Tradeoffs

This view follows one way of thinking about design priorities, often called the blockchain trilemma. The design-priorities lesson sets out the counter-view. Read the design-priorities lesson.

Emphasizes
Security and Scalability
Gives up
Decentralization of operation. Consensus runs in a stake-gated committee of at most 200; 26 were listed at review, and the four largest held more than a third of committee stake. Even a non-voting client node needs server hardware (24 cores, 128 GiB of memory, 2 TB of fast storage). Proof generation falls on users or on hired proving services, and some wallets, including the Shield wallet the docs recommend, hand record scanning to a hosted service.Privacy is a separate goal that the triangle does not measure. The scalability case is that validators check small proofs instead of re-running every program. That does not remove the cost of making proofs; it moves it to the user's device or to a delegated prover. Provable's proving service decrypts requests only inside a trusted hardware enclave; without one, a delegated prover sees the private inputs. The committee figures come from one reading of Provable's public API.
Full node at home
Data-center class 467The docs list minimums for a client node, which relays transactions and serves data but does not vote: 24 cores, 128 GiB RAM, a 2 TB NVMe drive and 250 Mbps symmetric bandwidth. A validator needs 64 cores, 256 GiB RAM, 4 TB NVMe and 500 Mbps. Faster first sync is offered by downloading ledger snapshots from a cloud storage bucket. How far a node re-checks a downloaded snapshot was not reviewed.
Throughput claims
  • Lab benchmark: 50 tx/s 618Controlled benchmark; not observed network behavior.Load testing tied to the February 2025 expansion of the mainnet validator set from 16 to 25 (block 4,900,000)Not stated in the announcement; validators in the docs need at least 64 cores, 256 GiB RAM and 4 TB NVMe.The Foundation described this as an approximate improvement after load testing, not a measured mainnet rate over a stated window. The transaction mix used in testing was not stated; proof-heavy program calls and simple transfers cost validators different amounts of work. It ignores the time users or proving services spend generating proofs before a transaction reaches the network. It ignores propagation limits and state growth, and the committee size and node software have changed since February 2025.
Headline figures are not comparable across chains. A theoretical peak is never a like-for-like number.

Scaling layers

No scaling layer recorded in this profile.

Capabilities

Capabilities of Aleo: how each one is provided, or its research status
CapabilityHow it is providedNotes and sources
Account abstractionStructured assessment pendingNot yet assessed for any chain.
Atomic swapsUnknownNot yet assessed under the current definitions; the transaction docs tie every execution step in a transaction to one signer, so two users cannot co-sign a single swap, and a swap needs a program such as an exchange or escrow. No hash-locked, time-locked swap program or cross-chain atomic swap tooling was found in reviewed sources. 810
Authenticated data publicationUnknownNot yet assessed under this row's current definition.
Light clientsNot presentNone: the node docs describe only validator, prover and client modes, and even the client mode needs server hardware; no light-client protocol was found. Client nodes serve blocks, transactions and mapping values over a REST interface that apps query, and some wallets, such as Shield, hand record discovery to a scanning service; trusting a server is not light verification. Proofs make each transaction cheap to check, but that is not the same as verifying the chain without a full node. 4711
Native staking or delegationStructured assessment pendingNot yet assessed for any chain.
On-chain governanceStructured assessment pendingNot yet assessed for any chain.
Parallel executionStructured assessment pendingNot yet assessed for any chain.
Payment or state channelsUnknownNo payment, state or application channel network anchored to Aleo was found in reviewed sources.
Programmable spendingNative (protocol or core-team software) Earlier definitionPrograms, written in Leo or Aleo instructions, define records, mappings and functions. The private part runs off-chain and is proved; an optional public step runs on-chain after the proof checks out. Programs can call each other, up to 32 transitions per transaction. A program can be upgraded only if it was deployed with a constructor; programs deployed without one stay fixed. This is its own zero-knowledge virtual machine. 58922
Protocol-verified messagingStructured assessment pendingNot yet assessed for any chain.
Reversible transfers or recoveryUnknownNot yet assessed under the current definitions; no sender-reclaim window or pre-arranged recovery path was found for ALEO. Programs can check block height in their public on-chain step, a building block with which one could be built, but none was reviewed. The documented stablecoin programs give the issuer freeze-list, pause and burner roles, and the burner role can burn from a named public balance; that is an issuer control over holders, not a recovery feature for them. 814
RollupsUnknownNo rollup or validium settling to Aleo was found in reviewed sources. Aleo's own off-chain execution with on-chain proof checks is part of the base layer, not a separate rollup.
Shielded transfersStructured assessment pendingNot yet assessed for any chain.
Signed partial offersUnknownNot yet assessed under this row's current definition.
Reading these values
How this feature is provided
Built into the protocol, core-team software or independent software says where a feature lives and who can change it. These are implementation layers, not quality: core-team software is not closer to the protocol than independent software.
Structured assessment pending
The shared review has not assessed this feature for any chain yet (Account abstraction, Native staking or delegation, On-chain governance, Parallel execution, Protocol-verified messaging and Shielded transfers). That does not mean it is absent, and a chain’s profile may already describe it.
Unknown
The review has not established this for this chain under the current definition; the note beside it says why. Unknown is not absent and not a low score. A feature reads “Not present” only when a source shows it is absent.
Earlier definition
Payment or state channels, Programmable spending and Rollups keep the earlier definition until the next fact-check. There, “Native” does not separate the protocol from core-team software, “Ecosystem software” does not say who publishes it, and “Partial” does not say which layer.
Reading across rows
The list of capabilities is incomplete. Do not read these rows as a chain leading or lagging overall.

Definitions, schema version and review history

Ecosystem & custody

Ecosystem products for Aleo
Product typeStatusNotes and sources
Automated market makersThinShield Swap (early access), AlphaSwapShield Swap, built by Provable, opened early access on 1 September 2026, with a public launch expected in the fourth quarter of 2026. Its site calls it a concentrated-liquidity AMM settling on Aleo: tokens, amounts, prices and timing stay public, while the link between a trade and the trader is kept confidential. AlphaSwap's site presents it as a swap-and-pool exchange that needs tokens wrapped first. Liquidity, audits and AlphaSwap's mainnet state were not verified. 13303132 As of Sep 27, 2026.
Issuer-native stablecoinsFirst-partyUSDCx (through Circle xReserve), USAD (Paxos Labs)The docs list two stablecoins live on mainnet. USDCx is an Aleo token backed 1:1 by USDC held in Circle-deployed xReserve contracts on Ethereum, with Arc added in September 2026. It is not Circle-issued USDC: Circle's xReserve docs describe such tokens as deployed by the chain's own team, and Circle's native USDC list does not include Aleo. USAD is issued by Paxos Labs and backed 1:1 by USDG held in an Ethereum vault. Tether's supported list does not include Aleo. 14242526272829 As of Sep 27, 2026.
Algorithmic stablecoinsUnknownNo algorithmic or hybrid stablecoin on Aleo was reviewed. As of Sep 27, 2026.
BridgesEstablished in the ecosystemUSDCx bridge (Circle xReserve), USAD vault bridge, Hyperlane, VerulinkAleo's docs list four routes. USDCx mints on Aleo against Circle-attested deposits on Ethereum or Arc and burns back to those two. USAD moves against a USDG vault on Ethereum. Hyperlane, deployed for Aleo by Abacus Works, lists routes for ALEO (Ethereum, Solana, Base, HyperEVM), USAD (Ethereum), USDT (Ethereum, Solana, BNB Smart Chain, HyperEVM), ETH and wrapped BTC (Ethereum, HyperEVM) and SOL (Solana, HyperEVM). Verulink, from Venture23, lists ALEO to BNB Smart Chain only, USDC and ETH to Ethereum, Base and Arbitrum, and USDT to Ethereum. Risk: Each route trusts parties outside Aleo consensus. USDCx relies on Circle's attester key and xReserve contracts, and a malformed recipient on burn releases funds to the wrong address with no recovery. Verulink relies on five attestors and address screening, per a 2025 post. Hyperlane's security settings for Aleo routes were not reviewed. Admin operations of the USDCx, USAD and Hyperlane programs are gated by an on-chain multisig whose signers were not reviewed. Privacy ends when funds leave Aleo. 13151623293334 As of Sep 27, 2026.
Block explorersEstablished in the ecosystemProvable Explorer, Aleo Info ExplorerProvable Explorer is run by Provable and shows blocks, transactions, validators and programs. Aleo Info Explorer shows blocks and prover rankings, and its operator is not named on the site. Encrypted records show only as ciphertext on any explorer. Explorer data is indexed by the provider and is not independent validation. Aleoscan could not be reviewed because it refused automated access. 233536 As of Sep 27, 2026.
Hardware walletsEstablished in the ecosystemLedger (Ledger Wallet desktop)See the custody rows. Ledger supports ALEO natively in the desktop Ledger Wallet app, for both public and private sends. Trezor lists ALEO only as a token on BNB Smart Chain. 3740 As of Sep 27, 2026.

Hardware-wallet custody

Hardware-wallet custody for Aleo
Device makerStatusWhat users can and cannot do
LedgerNative supportSame as native: YesCan: Install the Aleo app from My Ledger and add an Aleo account in Ledger Wallet desktop 4.2.0 or later
Can: Send from a public balance or from a private record, confirming each transaction on the device screen
Can: Let the desktop app show the private balance by approving a view-key request that cannot move funds
Can: Use the app on Nano S Plus, Nano X, Flex, Stax and Nano Gen5, per Ledger's app repository
Cannot: Use Aleo in the Ledger Wallet mobile app, per Ledger's May 2026 post
Cannot: Hold USDCx or USAD through Ledger yet; Aleo's May 2026 post lists private stablecoin support as next on the roadmapKeys stay on the device, but approving the view-key request lets the desktop app decrypt the account's private records. Staking from Ledger Wallet was not described in the reviewed posts. 12373839 As of Sep 27, 2026.
TrezorNone foundSame as native: NoCannot: Manage native Aleo accounts or private records with a Trezor device
Cannot: Treat the BNB Smart Chain ALEO token that Trezor lists as custody of ALEO on Aleo itselfTrezor's ALEO page names BNB Smart Chain as the only supported network. Third-party Trezor signing paths for Aleo were not found. 40 As of Sep 27, 2026.

Public data

iKnow Blockchain has no public-data lookups for Aleo yet. This is a limit of the service, not a statement about the network.

Public-data lookups for Aleo
LookupStatusWhat it covers and its limits
Address or accountNot available yetPublic-data lookups for this chain are not built yet.
Tokens and assetsNot available yetPublic-data lookups for this chain are not built yet.
NFTsNot available yetPublic-data lookups for this chain are not built yet.
TransactionsNot available yetPublic-data lookups for this chain are not built yet.

A lookup covers one address or transaction from one provider. It is never a complete wallet, and an error or private value is reported as unknown, not zero. About public data · Connect your AI

Sourced developments

Developments: Review overdue Reviewed Sep 27, 2026; next review was due Oct 7, 2026, 12:00 UTC.

Publication date · newest first

Topics your AI can explain

Your AI can explain these topics for Aleo through the connection, with sources.

Known gaps

What this profile's review did not establish:

Sources

Oldest dated source check: Source checked Sep 27, 2026 Next check due Oct 27, 2026.

All 40 sources were checked in the last 30 days.

  1. Consensus (external site)Aleo documentation · retrieved
  2. Validators (external site)Aleo documentation · retrieved
  3. Provers (external site)Aleo documentation · retrieved
  4. Clients (external site)Aleo documentation · retrieved
  5. Architecture (external site)Aleo documentation · retrieved
  6. Run a Node: Validator (external site)Aleo documentation · retrieved
  7. Run a Node: Client (external site)Aleo documentation · retrieved
  8. Programs (external site)Aleo documentation · retrieved
  9. Transactions (external site)Aleo documentation · retrieved
  10. Transitions (external site)Aleo documentation · retrieved
  11. Record Scanning (external site)Aleo documentation · retrieved
  12. Wallets (external site)Aleo documentation · retrieved
  13. Getting Tokens: Crosschain (external site)Aleo documentation · retrieved
  14. Private Stablecoins (external site)Aleo documentation · retrieved
  15. Aleo USDCx Bridge: Integrator Manual (V2) (external site)Aleo documentation · retrieved
  16. Multisig (external site)Aleo documentation · retrieved
  17. AleoBFT: Explore Aleo's consensus layer (external site)Aleo · retrieved
  18. Expanding the Aleo validator set: A step toward greater decentralization (external site)Aleo · retrieved
  19. Aleo mainnet latest committee (Provable Explorer API) (external site)Provable · retrieved
  20. Aleo mainnet latest block (Provable Explorer API) (external site)Provable · retrieved
  21. snarkOS v4.10.0 release notes (external site)ProvableHQ/snarkOS maintainers · retrieved
  22. Leo guides: Upgradability (external site)Aleo documentation · retrieved
  23. Hyperlane registry: Aleo chain metadata (external site)Hyperlane registry maintainers · retrieved
  24. xReserve overview (external site)Circle · retrieved
  25. xReserve supported blockchains and domains (external site)Circle · retrieved
  26. USDC contract addresses (external site)Circle · retrieved
  27. Supported protocols (external site)Tether · retrieved
  28. USDCx on Aleo (external site)Aleo · retrieved
  29. USAD (external site)Aleo · retrieved
  30. Provable opens early access to Shield Swap on Aleo (external site)Aleo · retrieved
  31. Shield Swap (external site)Shield · retrieved
  32. AlphaSwap (external site)AlphaSwap · retrieved
  33. Verulink (external site)Venture23 · retrieved
  34. Verulink x Predicate: Faster, safer cross-chain transfers (external site)Aleo · retrieved
  35. Aleo Explorer by Provable (external site)Provable · retrieved
  36. Aleo Info Explorer (external site)Aleo Info · retrieved
  37. New in Ledger Wallet: Secure Private Transactions with Aleo (external site)Ledger · retrieved
  38. app-aleo: Aleo application for Ledger devices (external site)Ledger · retrieved
  39. Aleo + Ledger: Shielded transactions, hardware-secured keys (external site)Aleo · retrieved
  40. ALEO wallet (external site)Trezor · retrieved

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Funding disclosure

Funding disclosures appear here when an upkeep arrangement exists, in the form “Upkeep funded by [name]; verdicts unaffected.” The funder ledger has not been published yet. Neutrality & funding