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SeedSigner

DIY stateless Bitcoin signer. Build it yourself. Trust nothing. Own everything.

seedsigner.com

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DIY stateless Bitcoin signer. Build it yourself. Trust nothing. Own everything.

Common useMaximum sovereigntyWallet / Privacy ToolsOperator dataHosted
Identity checksZero KYCNo document check recorded · identity exposure level 0/4
Evidence and riskVerified evidenceStandardMaterial claims checked against current sources.; no material risk recorded in them.
Last reviewedReviewed 22 Jun 2026KYC checked 22 Jun 2026 · unknown jurisdiction · Source → official siteHow to cite this pageEvidence confidence94/100
Evidence and facts

Evidence and facts

JURISDICTIONUnknown
AUDITED BYNo audit listed
OPERATOR DATAHosted operator recorded
EVIDENCE CONFIDENCE
THIRD-PARTY REPORTED3/4
Why evidence is 94/100Formula 3.1
Source coverageMaterial claims checked against current sources
+70
Review ageOldest recorded check is 62 days old
+24

Full scoring method

LAST CHECKED2026-06-24
LAST UPDATED2026-03-13

Specs

DOCUMENT CHECKNone recorded
IDENTITY EXPOSURELevel 0/4
KYC TRIGGERSNo account. No KYC. Build from commodity parts. No manufacturer trust required.
FEE~$50-70 (DIY parts)
NETWORKSBTC
CATEGORIESWallet, Privacy Tools
COMMON USESMaximum sovereignty, DIY hardware, Privacy-first cold storage
FEATURESDIY hardware signer, Stateless (no key storage), Air-gapped QR signing, Open source, Raspberry Pi Zero, No persistent storage, SeedQR backup format, Bitcoin-only
TORNot listed
REGIONSGlobal availability
Review analysis, source material, related services, and history

About

DIY stateless Bitcoin signing device built from Raspberry Pi Zero parts, using air-gapped QR code signing.

Analysis

OVERVIEW

SeedSigner is a DIY Bitcoin signing device assembled from off-the-shelf Raspberry Pi Zero parts for about $50 to $70, built as a stateless design that holds no private key in storage and signs through air-gapped QR codes.

LIMITS

The project has no company or legal entity behind it and runs on volunteer development and Human Rights Foundation grants, so anyone using it takes on the DIY build and firmware verification themselves rather than relying on a manufacturer.

USEFUL FOR

Bitcoin holders willing to assemble their own signing device from commodity parts for cold storage.

Sources · reviewed 2026-07-16

Corporate identity

Registry-sourced, not audited. The facts below come from cited web research rather than a direct registry query. Each claim links its own source.

Registry research · reviewed 2026-08-09

Frequently Asked Questions

Is identity verification required?

No identity verification is recorded for typical use. No account. No KYC. Build from commodity parts. No manufacturer trust required.

Which payment methods are accepted?

Accepted payment methods: BTC.

Where is it available?

Recorded availability: GLOBAL.

Is the operator based in a Five Eyes country?

The jurisdiction is not publicly confirmed. Check the provider site for incorporation details.

How are identity, operator, and evidence fields reported?

Identity exposure is level 0 of 4. A hosted operator is recorded. Jurisdiction is shown as context, not a safety verdict. Evidence confidence is 94/100 and recorded risk is standard.

Which payment networks are supported?

Accepted networks: BTC.

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Sources and history

Evidence basis: Claims on this page are linked to published sources for comparison, not certification, audit, endorsement, or recommendation; read the methodology and coverage map before relying on an entry.