{"@context":"https://schema.org","@type":"Dataset","name":"Hardware wallets matrix","description":"Which hardware wallet is safest after the Coldcard incident, and for whom? Devices are scored on a separate rubric: entropy, firmware, supply chain, disclosure conduct, interoperability, privacy.","url":"https://proofofcustody.io/data/matrix.json?category=hardware","creator":{"@type":"Organization","name":"Proof of Custody","url":"https://proofofcustody.io"},"publisher":{"@type":"Organization","name":"Proof of Custody","url":"https://proofofcustody.io"},"license":"https://creativecommons.org/licenses/by/4.0/","isAccessibleForFree":true,"inLanguage":"en","dateModified":"2026-08-03","asOf":"2026-08-03","status":"fresh","cadence":"Records monthly; corrections as verified","upstream":null,"method":null,"citation":"Proof of Custody, \"Hardware wallets matrix\", https://proofofcustody.io/data/matrix.json?category=hardware, as of 2026-08-03","publisherDisclosure":"Proof of Custody is published by Onramp Bitcoin, which is scored by the same methodology as every other platform and does not control rankings or coverage.","readMe":{"staleness":"Check `status` and `asOf`. A `stale` status means the last pull failed and this is the previous snapshot. The change feed at /data/changes.json lists corrections and methodology changes.","coverage":"Coverage is selected, not exhaustive. Absence from a dataset is not evidence about the thing absent.","upstream":"Where `upstream` names another publisher, the numbers are theirs, credited; Proof of Custody adds the envelope, the as-of discipline and the daily check.","columns":"score (editorial), custodyModel, spof (single point of failure), independence (pillars met of 4), insurance and insuranceBasis (provider statement), regulatory, qualifiedCustodian (per provider), fees, minimum, incidents (registry count), asOf (record date)."},"category":"hardware","page":"https://proofofcustody.io/compare/matrix/hardware","count":4,"rows":[{"slug":"foundation","name":"Foundation (Passport)","score":81,"custodyModel":"Hardware Wallet","spof":false,"independence":"1/4","insurance":"Not disclosed","insuranceBasis":"","regulatory":"Not published","qualifiedCustodian":"n/s","fees":"~$200","minimum":"$0","incidents":0,"asOf":"2026-08-03","isPublisher":false,"url":"https://proofofcustody.io/platform/foundation"},{"slug":"trezor","name":"Trezor","score":71,"custodyModel":"Hardware Wallet","spof":false,"independence":"1/4","insurance":"Not disclosed","insuranceBasis":"","regulatory":"Not published","qualifiedCustodian":"n/s","fees":"~$70 - $180","minimum":"$0","incidents":0,"asOf":"2026-08-03","isPublisher":false,"url":"https://proofofcustody.io/platform/trezor"},{"slug":"ledger","name":"Ledger","score":59,"custodyModel":"Hardware Wallet","spof":false,"independence":"0/4","insurance":"Not disclosed","insuranceBasis":"","regulatory":"Not published","qualifiedCustodian":"n/s","fees":"~$80 - $280","minimum":"$0","incidents":1,"asOf":"2026-08-03","isPublisher":false,"url":"https://proofofcustody.io/platform/ledger"},{"slug":"coldcard","name":"Coldcard","score":58,"custodyModel":"Hardware Wallet","spof":false,"independence":"1/4","insurance":"Not disclosed","insuranceBasis":"","regulatory":"Not published","qualifiedCustodian":"n/s","fees":"~$150 one-time","minimum":"$0","incidents":1,"asOf":"2026-08-03","isPublisher":false,"url":"https://proofofcustody.io/platform/coldcard"}]}