Hannon TanSignet 01

Signet 01

A cryptographic signet ring.

Signet 01 sterling-silver ring on a pale stone surface

A sterling-silver instrument containing a secure cryptographic key.

Touch it to a phone to review and approve an exact digital action.

Your decision is signed by the object and recorded as a Seal.

01 / Human Authority

As digital systems become capable of acting for us, who holds authority?

Signet 01 places a deliberate point of human approval between a proposed action and its execution.

The exact request is shown to the holder and signed when the ring is touched to the phone. The system can verify that decision before it proceeds.

Macro detail of the Signet 01 square spiral antenna machined into brushed sterling silverAntenna face

02 / The Instrument

Signet 01

01
Sterling silver
02
Passive NFC · no battery
03
Secure element · on-chip generated, non-extractable key
04
Signs a specific digital request
05
Individually numbered · issued · registered
06
Serviceable over its lifetime

The square spiral is both its antenna and its identifying face. The object, its cryptographic identity and its provenance remain connected.

03 / The Act

i

Review

See exactly what will happen.

ii

Tap

Tap Signet 01 to the phone.

iii

Seal

Signet 01 signs the request and creates a verifiable Seal.

04 / Issuance

Provenance accrues.

Each Signet is numbered in the order it is issued and entered into the Register. Its number, first holder and first Seal fix its origin.

Every later Seal, service and change of holder is added to the same record, automatically.

Over time, the record becomes the provenance of the object.

05 / Hannon Tan

We are an independent design and invention studio developing physical instruments for human authority in digital systems.

The work brings together industrial design, precious materials, cryptography and emerging digital infrastructure.

Signet 01 is the first instrument.

Signet 01 on a reflective studio workbench beside precision toolsPrototype study · Signet 01

Authority, made tangible.

Signet 01 ·