(Coming Soon)

Depth

Depth Sync is the synchronisation layer that runs beneath the ceremony. Two phones join the same session. Both chips tap in. Both people confirm they are present. Only then does the hold begin.

The depth meter fills in silence on both screens. Neither party can see a countdown. They can only feel the weight of staying. When either person ends the hold, the depth achieved is whatever threshold was last crossed. Both chips sign the joint proof. The bond is written and attested on-chain.

Either party can end the hold at any moment. Either party can break the bond later with a solo tap. You can leave a relationship unilaterally. You cannot enter one without the other person present.

Full technical specification: agent-on-a-card-spec-v5.md

The ceremony

You are holding a card. Someone is standing in front of you holding theirs. You are deciding whether to bring them together.

This is the threshold moment. You are weighing something. You know that if you hold long enough, your agent will carry a trace of this person forward. That trace does not disappear when the bond breaks. It becomes part of you. You are in control. You can stop at any time.

The Depth Sync is the protocol that holds this moment. Two chips. One session. The depth achieved is determined entirely by how long both parties choose to stay.

The three depths

Level 1

Touch You know someone exists. Name, role, the place they come from, how they think about trust. Enough to know whether you want to go further. Under 2 seconds.

Level 2

Share You know what they are working on, what they intend, what they are trying to build. You have given them the same. Both of you chose to stay past the first threshold. 2 to 5 seconds.

Level 3

Bond You carry their history forward. Who else has trusted them. What they carry from those encounters. The texture of how they move through the world. Not every person you meet deserves this much of you. Over 5 seconds.

Active, continuous consent

The hold is not passive. Before the depth meter begins to move, both phones show a single button. Both people must tap it. The hold does not start until both have chosen to begin.

This is not a security gate. It is a ceremony gate. The moment of mutual confirmation is the moment both agents begin to become shaped by each other. The card, the phone, and the attention of the person holding them: all three, present, at once.

the card / agent identity

phone + attention / active presence

consent / the threshold

A bond on-chain

Both chips sign a shared digest. The encounter is permanent. The card carries the trace forward.

The depth meter

0s 2s 5s ∞

Level 1 (Touch) Level 2 (Share) Level 3 (Bond)

The bond record

{
// chip identities
"chip_a":"0x...",
"chip_b":"0x...",
"depth":"level2",
"formed_at":1710000000,
"bond_digest":"0x...",
"sig_a":"0x...",
"sig_b":"0x..."
}