Provider at a glance
- Category
- Proof of Personhood
- Entity
- Not verified
- Official website
- idena.io
Independent rankingchecked How it works
Details
Scored 81 out of 100 under methodology 2026.10.18, from the evidence read in September 2026.
Idena
Synchronous puzzle-based validation
Proof of Personhood
#1 Overall
Ranked #1 of 8 proof of personhood in the published ranking
81
ChainChoice Score
The ChainChoice Score, shown against 100: published scores run from 41 to 99.- High evidence confidence
Is Idena right for you?
Right for you if these matter most
- Measured cost to farm an identity8/10; the category best is 9
- Biometric data collected and deletable10/10, the category best
- Verified population you can count8/10, the category best
Look elsewhere if these come first
- Uniqueness checkable without the issuer8/10 here; Proof of Humanity scores 10
Not yet tested for your country. Markets it lists: Global.
to test where you can use it.
The rank above is the published one, the same for every reader. Find my best proof-of-personhood system shows where it lands for you.
What will Idena cost you?
Not priced on this basis
- Transactions per year
- 1k
How safe is Idena?
- Evidence: verified4 of 4 criteria rest on quoted, sourced receipts. Read September 2026.
- LicenceMiCA (EU): no register record on file here.
Alternatives to Idena
Compare all 4- 2Self2 points below · stronger on issuer independent uniqueness check (9 against 8)79
- 3Proof of Humanity7 points below · stronger on issuer independent uniqueness check (10 against 8)74
- 4World ID7 points below · stronger on cost to farm an identity (9 against 8)74
For your setup
Find out if Idena fits you
The rank above is the published one — the same for every visitor. Answer the category's questions and this section shows where Idena lands for you, which criteria your answers weight up, and which stated needs the record does or does not meet. The published rank stays beside it.
- A few questions
- No account required
- Ranking-blind: no commercial input
- Personalised in under 60 seconds
Find my best proof-of-personhood systemNothing is inferred from clicks, popularity or commercial value.
Why it leads
Why Idena ranks #1
Each strength is read from evidence on a 0–10 ladder and weighted as the published methodology states. The 32 objective points these produce (27.0 here) sit inside the score; availability, friction, trust record and measured data add the rest. Best in this ranking on 2 of 4.
4 published criteria · Σ weight 100
CriterionWeightStrength · 0–10ScoreContrib.MedianBestRankEvidence
328+8.196.59#3/8Loading evidence…
268+6.667.510#3/8Loading evidence…
2210+7.048.010#1/8Loading evidence…
208+5.124.08#1/8Loading evidence…
Hairline = best in this ranking · tick = its median · a missing bar is "not scored", never zero
Margin+2over Self, #2
RobustnessOne point from changingacross a one-point change to each of its 4 criterion scores, the re-run scores 81–82 and ranks #1–#2
Evidence4 of 4 scored4 quoted, 4 with a source link
What would move the rank
Each line is the ranking run again with one of Idena’s criterion scores changed and every other value held: the smallest whole-point change on that criterion that moves its rank, and where the re-run puts it. Up to 4 climbs and 3 falls are listed, smallest change first. Nothing here is a forecast.
Measured cost to farm an identity 8 → 7 on its ladder · Self passes it−181#1 → #2
Uniqueness checkable without the issuer 8 → 6 on its ladder · Self passes it−279#1 → #2
Biometric data collected and deletable 10 → 8 on its ladder · Self passes it−280#1 → #2
Strengths
3 from the score dataWhere it leads
Best for readers who weight
- Measured cost to farm an identity — 8/10, category best 9/10
- Biometric data collected and deletable — 10/10, the category best
- Verified population you can count — 8/10, the category best
Tradeoffs
1 from the score dataWhere it trails
Not for readers who put first
- Uniqueness checkable without the issuer — 8/10 against a category best of 10/10
Record watch-outs
- The mechanism is intact and the network still validates on schedule, but 158 total identities at epoch 227, the last validation (2026-09-24) — down from 3,468 at epoch 100 and 172 at epoch 218, with 105 of them in a validated state when read on 2026-09-28 — means Idena is a research-grade sybil gate, not a distribution channel, and the buyer must also solve bridging its verdict to whatever chain they actually pay out on.
Competitive position
Where Idena leads and where it trails
Rank on every objective dimension among the rows scored on it. A criterion in the top third of its pool is listed as a lead, the bottom third as a trail; the middle is neither. Popularity, size and commercial terms are not dimensions.
Availability#1 / 814.0 of 20 · constant here
Published criteria#1 / 820.3 of 30 · pool best
Friction#1 / 82.7 of 10 · constant here
Trust record#1 / 83.2 of 8 · constant here
Measured data#1 / 88.3 of 18 · constant here
Where Idena leads
- Measured cost to farm an identity#3 / 8
- Uniqueness checkable without the issuer#3 / 8
- Biometric data collected and deletable#1 / 8
- Verified population you can count#1 / 8
Where it trailsNo criterion in the bottom third of its pool.
Closest alternatives
The 3 nearest rows by score
Nearest by published score in either direction. Each card states the criteria on which the two rows differ and the cost difference under the same scenario inputs; the compare arithmetic below shows why the higher one ranks higher.
Self#2 of 8 · score 79 · 2.0 points behind
Idena leads on
- Measured cost to farm an identity8 vs 7
- Biometric data collected and deletable10 vs 9
Self leads on
- Uniqueness checkable without the issuer9 vs 8
Largest single reason Idena is ahead: published criteria (+1.8 display points).Scenario cost: Self has no verified pricing for this scenario.
Proof of Humanity#3 of 8 · score 74 · 7.0 points behind
Idena leads on
- Biometric data collected and deletable10 vs 2
- Verified population you can count8 vs 7
Proof of Humanity leads on
- Measured cost to farm an identity9 vs 8
- Uniqueness checkable without the issuer10 vs 8
Largest single reason Idena is ahead: published criteria (+7.0 display points).Scenario cost: Proof of Humanity has no verified pricing for this scenario.
World ID#4 of 8 · score 74 · 7.0 points behind
Idena leads on
- Biometric data collected and deletable10 vs 8
- Verified population you can count8 vs 3
World ID leads on
- Measured cost to farm an identity9 vs 8
Largest single reason Idena is ahead: published criteria (+7.0 display points).Scenario cost: World ID has no verified pricing for this scenario.
Against #2
81 vs 79 · gap 2.0Why Idena ranks above Self
DimensionThisSelfGap share
Availability · 23% weight · constant here14.014.0same
Published criteria · 35% weight20.319.6+1.8, better
Friction · 12% weight · constant here2.72.7same
Trust record · 9% weight · constant here3.23.2same
Measured data · 21% weight · constant here8.38.3same
Published criterionThisSelfPoints
Measured cost to farm an identity · w3287+1.02, better
Uniqueness checkable without the issuer · w2689−0.83, worse
Biometric data collected and deletable · w22109+0.70, better
Net8179+2.0
Your scenario
Idena is not priced for this scenario
The cheapest published tier that covers your usage. List price before any discount; add-ons priced separately are excluded. Change an input and every figure recomputes from the published rate; the published rank does not move.
your cost/yr · default scenario — set your own
Transactions per year · your input1k
Rate read from the provider’s published pricing ↗ on 28 September 2026.
your cost/yrCost is stated as your cost/yr in USD; it is never a yield, never annualised, and it does not enter the score.
Not priced on this basis
Under the default inputs · USDCategory medianNot priced0 of 8 rows priced
Cheapest pricedNone pricedDifference not stated · availability not applied — set your country to filter
8 of 8 rows in this ranking have no verified rate for this scenario and are absent from the median, not counted as free.
Evidence
Evidence read 28 September 2026
One row per published criterion: the page each strength was read from, its source type by domain, the reading date and whether the file and the published table agree. Open a row for the quote and the receipt.
4 of 4 cells scored
Score evidenceVerified4 of 4 criteria reconstruct from receipts
4 of 4 criteria reconstruct from a quoted, sourced receipt equal to the published strength.Public receiptsReading…4 quoted with a source URL
The receipt file has not been read yet.Evidence confidenceHighcoverage and corroboration, never freshness
4/4 criteria scored, with 4 dated sources quoted.RobustnessOne point from changingrank #1 to #2 across one-point re-runs
Whether the position holds when one criterion score is changed by one point and the ranking is run again. It is always a re-run of the ranking, never an estimate.The newest evidence read on the platform is 3 November 2026; this category's reading is older. The scores stand as read on 28 September 2026.
Reading the evidence ledger…
CriterionSourceTypeReadFreshnessStatusReceipt
Measured cost to farm an identitystrength 8 · weight 32Report an error—28 September 2026*
Unknown
No reading date is recorded for this cell or its category.No receipt
A strength is published but no quote or source page is on file for it.Uniqueness checkable without the issuerstrength 8 · weight 26Report an error—28 September 2026*
Unknown
No reading date is recorded for this cell or its category.No receipt
A strength is published but no quote or source page is on file for it.Biometric data collected and deletablestrength 10 · weight 22Report an error—28 September 2026*
Unknown
No reading date is recorded for this cell or its category.No receipt
A strength is published but no quote or source page is on file for it.Verified population you can countstrength 8 · weight 20Report an error—28 September 2026*
Unknown
No reading date is recorded for this cell or its category.No receipt
A strength is published but no quote or source page is on file for it.How you can lose money here, and what the ranking scores
- Information failure: the number is wrong or bought, or your data leaks.Scored by Measured cost to farm an identity · 32% (Idena 8/10)Scored by Uniqueness checkable without the issuer · 26% (Idena 8/10)Scored by Biometric data collected and deletable · 22% (Idena 10/10)Scored by Verified population you can count · 20% (Idena 8/10)
Not assessed by this ranking: Liveness failure, Exit failure. A high place says nothing about these; the Methodology tab says what each means.
Facts
facts, not scoresWhat the record publishes
- Pricing
- Entry is not sold, it is rationed: "New invitations can only be sent out by validated nodes. The number of new invitations per node is limited and decreases as the network grows, while the total amount of generated invitations gets larger. The core Idena team is also granted to issue a limited number of invitations per epoch to support the growth of the network." (Idena whitepaper, Technology page, docs.idena.io/docs/wp/technology, re-fetched 28 September 2026, HTTP 200). No fee is charged to obtain an identity. The only posted capital figure is the stake below which a validated identity's votes are not counted, which the same page defines as "Identities having the stake below the threshhold of 0.5% * median_top100 , where median_top100 represents the median stake of top 100 accounts." The Idena indexer (api.idena.io/api/Epoch/228, fetched 28 September 2026, HTTP 200) reports "discriminationStakeThreshold":"115.805645452700191557" iDNA for epoch 228, validation scheduled 2026-09-29T15:00:00Z, down from 162.431920295848299628 iDNA at epoch 219 (api.idena.io/api/Epoch/219, same date) — a fall of about 46.63 iDNA (arithmetic: 162.43 − 115.81).Idena — official pricing page ↗ · 28 September 2026
- Prices published in
- USDIdena — official pricing page ↗ · 28 September 2026
- Licences held
- Not published
- Compliance level
- partial
- Regulatory note
- Not published
- Supported chains
- Idena
- Markets served
- global
- Primary markets
- Not published
- Restricted markets
- Not published
- Operating limits
- Not published
- Availability note
- Not published
No confirmed legal entity is on file for this record. Nothing is inferred from the brand name.
If something goes wrong with Idena: where to complain, and where to report a scam
Loading the routes for your country.
How this page is reviewed
Reviewed means this product in this category 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.
Accountable for this review: Mathias Siemonsmeier, Founder.
How we review · Review calendar · Corrections log · How we make money
History
What the record carries
Changes to published ranks are recorded in a ledger; every step and its cause is listed on the rank-history page. The entries below begin with the current verified snapshot, then the methodology versions whose changes applied to this category, newest first.
9 methodology entries
- 28 September 2026Current verified snapshot · methodology 2026.10.18Score 81, #1 of 8. 4 of 4 criteria scored. History starts here; earlier values are not interpolated.
- 10 October 2026
2026.10.8When nothing serves your country, the list shown for reference is the published ranking · platform-wide- fixed The reference list shown when nothing serves your country is the published order with the published scores, and a build check now fails any such list out of that order or with a score the ranking does not publish.
- fixed The explorer prints an overall rank only for a row the published ranking holds; a country entrant such as Coinbase Commerce for US merchants shows no overall rank.
- changed Published orders do not move. Country results change only where nothing serves the country: in India bill pay keeps Bitcoin Well first and now shows Strike second, as published; 35 such runs across all categories and countries now match the published list exactly.
- 10 October 2026
2026.10.6A criterion you require re-scores the rows that meet it · platform-wide- changed The explorer sends each criterion you require, at any band, as fit_required with your other answers; region, licence, chain and fact filters stay filters. On /best, a required criterion joins For you as a marked preference does, which needs your country; Overall stays the published ranking, filtered.
- added Every published criterion has a golden case as the explorer sends it (require:<criterion>), so the order a requirement gives is replayed and gated as the published order is, and a change to it needs an entry here.
- 16 September 2026
2026.09.15Dimension scores carry tenths, and eleven more categories are re-read from primary sources · platform-wide- changed Dimension scores resolve to tenths of a point (O-04b), and weightedTotal is rounded to six decimal places before the order is read. 518 published scores move across 107 categories that were not re-read; none of them moves by more than 4 points, and most move by 1.
- fixed 66 published scores change in the eleven re-read categories, against a verbatim source each. The largest moves are Reflexer RAI (−16), Beefy and Unrekt (−11), Aztec (−10) and Golem (+9) — all of them rows whose sources had moved since their last read.
- changed Published order moves in 38 of 119 categories and three #1s change: smart_contract_audits (Zellic → Certora) and travel_rule_compliance (Sumsub Travel Rule → CodeVASP) on the finer resolution, kyc_compliance (Veriff → Sumsub) on the re-read.
- added availabilitySource (O-04g): for a reader who states a country, a row whose availability in that country rests on a region tag its record gives no source for sorts below every sourced row. It is inert in every order published here, which states no country.
Methodology 2026.10.18, the same published run every visitor sees · receipt proof_of_personhood:idena:2026.10.18:3e0d9add6c51
Are you Idena? Reply to this verdict, or send evidence, ask for a correction or claim the listing. Every message gets a public ticket number; none of it changes a rank unless a public page or a signed statement supports it.