Sidechains evaluated across bridge custody control, validator set concentration, documented failure and halt record, and finality and reorg behaviour.
Ranked here: sidechains, where your assets sit behind a bridge rather than a proof, compared on bridge custody control, validator concentration, failure and halt record, and finality. Not ranked here: rollups, validiums and other Ethereum Layer 2s that post data or proofs to Ethereum, including chains that have since migrated to that model.
GN
#1 of 7 · published ranking
Gnosis Chain
77ChainChoice Score
4199
Why it leads
Gnosis Chain scores higher than everything else in this ranking on its bridge custody control.
Show the arithmetic
Best in this ranking on bridge custody control (5/10; next 3/10)
Cost
Not priced· No comparable price is published
ReviewedNext review by Published Methodology v2026.11.1
How this page is reviewed
Reviewed means every product ranked on this page was read against its sources on or after that date; every ranked category is re-read at least every 45 days. Models research, extract and parse. A deterministic engine ranks. Every quote passes an adversarial refute pass.
No provider can pay for a position in this table. The code that computes this order cannot read which links carry a referral code, and every build proves it. Every score below rebuilds from the published criteria.Ranking v2026.11.1 · 4 criteria · 7 products · same inputs, same order
How we review · 7 ranked of 11 assessed · 4 criteria · 0 sponsor weight
How we review
7ranked
11assessed
4criteria
0sponsor weight
Recommendation first, comparison only if needed.
Reviewed and rechecked on the current cycle.
Commercial relationships disclosed before clickout.
Personal comparison
Sidechains ranked comparison
No comparable price is published; ranking still uses verified product evidence.
Bridge custody control — 5/10Trade-off: Three of the seven bridge signers named in the docs, GnosisDao, GnosisSafe and CowPro...
77score
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Gnosis Chain · gnosischain.com. Provider links appear once we know which country you are browsing from: ChainChoice links to providers only where it serves in full.
Commission: This provider pays ChainChoice nothing for this link. Disclosure
Crypto products are high risk. Check the provider is authorised where you live before you deposit.
2
Polygon PoSEVM chain with its own Bor/Heimdall val...
Finality and reorg behaviour — 7/10Trade-off: The largest escrow in this comparison sits behind a timelock whose delay is zero. Who...
73score
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Polygon PoS · polygon.technology. Provider links appear once we know which country you are browsing from: ChainChoice links to providers only where it serves in full.
Commission: This provider pays ChainChoice nothing for this link. Disclosure
Crypto products are high risk. Check the provider is authorised where you live before you deposit.
3
SKSKALE NetworkNetwork of application-specific EVM cha...
Documented failure and halt record — 5/10Trade-off: The bridge story SKALE tells is about an 11-of-16 BLS threshold; the contracts say th...
69score
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SKALE Network · docs.skale.space. Provider links appear once we know which country you are browsing from: ChainChoice links to providers only where it serves in full.
Commission: This provider pays ChainChoice nothing for this link. Disclosure
Crypto products are high risk. Check the provider is authorised where you live before you deposit.
Same score, not joint · ordered by weighted total (36.60 against 36.40)
4
BNB Smart ChainEVM chain operated by a daily-elected s...
Finality and reorg behaviour — 8/10Trade-off: BSC has near-best measured finality here and one of the weakest answers to the catego...
69score
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BNB Smart Chain · bnbchain.org. Provider links appear once we know which country you are browsing from: ChainChoice links to providers only where it serves in full.
Commission: This provider pays ChainChoice nothing for this link. Disclosure
Crypto products are high risk. Check the provider is authorised where you live before you deposit.
5
Chiliz ChainSports and fan-token EVM chain forked f...
Documented failure and halt record — 5/10Trade-off: Chiliz's bridge admins withdrew the whole Ethereum bridge escrow on 29 October 2026;...
66score
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Chiliz Chain · chiliz.com. Provider links appear once we know which country you are browsing from: ChainChoice links to providers only where it serves in full.
Commission: This provider pays ChainChoice nothing for this link. Disclosure
Crypto products are high risk. Check the provider is authorised where you live before you deposit.
6
CronosCosmos-SDK EVM chain launched by Crypto...
Finality and reorg behaviour — 5/10Trade-off: Cronos publishes its validator set, but on 30 August 2026 its validators rolled the c...
61score
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Cronos · cronos.org. Provider links appear once we know which country you are browsing from: ChainChoice links to providers only where it serves in full.
Commission: This provider pays ChainChoice nothing for this link. Disclosure
Crypto products are high risk. Check the provider is authorised where you live before you deposit.
1 more assessed and ranked below — none of them hidden for commercial reasons.
Ranked on 4 published criteria weighted 35/25/25/15, which set goal alignment — 30 of the 86 points. The rest: regional access 20 (constant here), evidence depth 18 (constant here), ease of use 10 (constant here), institutional trust 8 (constant here). Profile match is shown in breakdowns but carries no weight.
How you can lose money here, and what the ranking scores
Verification failure: an invalid state or transfer is accepted.
Scored by Validator set concentration · 25% (Gnosis Chain 4/10, Polygon PoS 4/10, SKALE Network 3/10)
Scored by Finality and reorg behaviour · 15% (Gnosis Chain 5/10, Polygon PoS 7/10, SKALE Network 3/10)
Liveness failure: the operator stops, censors you or loses data.
Scored by Documented failure and halt record · 25% (Gnosis Chain 5/10, Polygon PoS 4/10, SKALE Network 5/10)
Custody failure: whoever holds the assets loses or withholds them.
Scored by Bridge custody control · 35% (Gnosis Chain 5/10, Polygon PoS 3/10, SKALE Network 3/10)
Not assessed by this ranking: Contract failure, Control failure, Execution failure. A high place says nothing about these; the Methodology tab says what each means.
Audit
Infrastructure
Methodology
2026.11.1
published 10 November 2026
Providers tracked
860+
across 121 categories
Last verified
28 September 2026
newest dated pricing or sentiment read
Named on the roster
2 people
managing directors · 6 automated processes
Decision guide
What matters most before choosing in this category
Weighted on who controls the bridge escrow (35), how concentrated the validator set really is (25), the documented failure and halt record (25), and how the chain behaves at finality (15). Bridge custody leads because a sidechain has no Ethereum fallback: there is no fraud proof and no forced exit, so whoever can move the escrow contract can move your assets, and the only question left is how much warning you would get. On the largest escrow in this comparison the answer is none — the Polygon PoS bridge sits behind a timelock whose getMinDelay() returns 0.
Who can replace the contract holding your assets on Ethereum, and how many seconds of warning would you get?
How concentrated is block production measured by who gets paid, rather than by how many validator keys are registered?
When this chain has failed before, what actually stopped it — code, or a phone call?
Current engine lead
The #1 overall and the scoring weights
GN
Gnosis ChainData checked Sep 2026
EVM chain running Ethereum's consensus clients with its own validator set, connected to Ethereum by the Arbitrary Message Bridge and Omnibridge.
EVM chain running Ethereum's consensus clients with its own validator set, connected to Ethereum by the Arbitrary Message Bridge and Omnibridge. Strongest on bridge custody control (5/10): Gnosis Chain's Ethereum bridge releases assets on 4 of 7 named validators, readable on chain, but every escrow proxy can be upgraded without delay by an 8-of-15 governor Safe, and in June 2026 the bridge validators paused the bridge at Gnosis's request. Weakest on validator set concentration (4/10): Gnosis cites over 200,000 validators and entry is permissionless, yet across 600 recent blocks one fee-recipient contract receives 60.0% and five addresses 87.7%. Fee recipients show who is paid for blocks, not who holds validator keys. Published price: "xDai tokens are native tokens on Gnosis and also used to pay for execution of smart contracts and gas fees." (docs.gnosischain.com xDai page, fetched 28 September 2026). No fee figure is published on that page.
Best forBridge custody control — 5/10
Main tradeoffThree of the seven bridge signers named in the docs, GnosisDao, GnosisSafe and CowProtocol, share Gnosis lineage, and in June 2026 the bridge validators paused the bridge at Gnosis's request, so the effective independence of a 4-of-7 threshold is lower than the arithmetic suggests. Separately, the December 2025 fork established that this validator set will rewrite state when governance asks it to.
Verify before signup"xDai tokens are native tokens on Gnosis and also used to pay for execution of smart contracts and gas fees." (docs.gnosischain.com xDai page, fetched 28 September 2026). No fee figure is published on that page. Normalised on the same basis as the rest of this file: eth_gasPrice on gnosis-rpc.publicnode.com returned 12 wei (0.000000012 gwei) on 28 September 2026 against a latest-block base fee of 10 wei, so a 21,000-gas transfer costs 21,000 x 12 wei = 252,000 wei = 0.000000000000252 xDAI (worked example), still the cheapest chain measured here.
Weighted criteria
Bridge custody control35%
Validator set concentration25%
Documented failure and halt record25%
Finality and reorg behaviour15%
Methodology
How this category is reviewed
Reviewed on bridge custody control, validator set concentration, documented failure and halt record, and finality and reorg behaviour.
The order on this page is the published ranking for this category. Every criterion, weight and source behind it is on the methodology page.
Frequently asked
Questions people ask before choosing sidechains
What actually secures a sidechain bridge?
An upgrade key, in every case here — the question is only how many hands hold it and how long they have to wait. The Polygon PoS bridge, the largest escrow in this comparison, is owned by a TimelockController whose getMinDelay() returns 0; because it is the non-enumerable variant, getRoleMemberCount() reverts, so the proposer set could not be listed, and four independent public RPCs refused the archive-range eth_getLogs that would have recovered it from RoleGranted events. SKALE shows the same gap from the other direction: its bridge is described in terms of an 11-of-16 BLS threshold, but all three mainnet escrow proxies share one ProxyAdmin owned by a Safe with getThreshold() = 3 over five owners — three keys can replace the escrow logic without delay, whatever sixteen nodes signed. Chiliz publishes the vault and hides the lock: its Ethereum handler holds 1,915,281,358 CHZ and reports seven relayers, while every getter for the signing threshold reverts.
Is a large validator set the same as a decentralised one?
No, and Gnosis Chain is the instructive case because it is usually named as the most decentralised set in this group — by validator key count it may well be. Measured by who actually gets paid, one fee-recipient address took 328 of the 600 most recent blocks (54.7%) and five addresses took 79.8%, sampled 2026-08-07. Key counts are a registry fact; block rewards are a behavioural one, and this comparison scores the second.
Can I trust the standard finalized tag on these chains?
Not without testing it. Chiliz Chain returns block 0 for the finalized tag while its head sits at 36,455,222, confirmed against two independent endpoints on 2026-08-07. That is worse than an outright error of the kind SKALE and Harmony return, because an exchange or bridge wiring up the standard tag receives a well-formed block that is 36.4 million blocks stale and gets no exception to catch. The two chains with the best measured finality — Cronos at zero lag and BNB Smart Chain at one second — are also two of the three with the weakest answer on bridge custody, and neither publishes an enumerable Ethereum-side signer set. Fast settlement on a chain you reached through an unspecified bridge is fast settlement of an unknown claim.
What does a documented halt tell me that an audit does not?
What the real security model is when it is tested. BNB Chain's own account of stopping the October 2022 Token Hub exploit is that it worked "by contacting community validators one by one" — a set small enough to phone is a set small enough to coerce. That sentence is worth more than any architecture diagram, which is why the documented failure and halt record carries the same weight here as validator concentration.
Reviewed28 September 2026Method4 criteriaCategorysidechains
Not financial advice · For informational purposes only · Always do your own research
