A permanent town square on Arc

Letters that open themselves

Set the immutable condition. The Oracle watches the public pool. When the chain decides, the seal cracks, the parchment unfurls in public, and the square reads it together while new letters are already being sealed.

Seal a letter Walk the Wall

{{ cSealed }}

Letters sealed

{{ cOpened }}

Opened in public

{{ cDays }}

Median days sealed

{{ cConds }}

Conditions watched

Letter 0412 · opened by the Oracle

— @lamplighter_04, sealed 12 Jun 2026

Oracle feed · public pool HARVEST-2026 {{ statusLabel }}

{{ poolReadout }}

current pool

must exceed

0.620

the condition

01 — The Wall

Only the conditions are visible until the Oracle releases them.

All sealed letters →

Rows of sealed envelopes, each listing nothing but the terms of its own release. No one — not even the operator — can read a letter early.

№ {{ w.id }} {{ w.badge }}

{{ w.foot }}

02 — How it works

Letters are stored encrypted until an independent worker sees the condition satisfied.

Public pool data or the calendar decides — not an editor, not a moderator, not the operator. The operator cannot read them early.

{{ st.n }}

The author is revealed beside their words — brilliant or ridiculous — while new letters are already being written.

While the room is still reading

Seal a letter

Write · seal · submit

Write it now. Let the chain decide when.

Your text is encrypted the moment you seal it. The Wall will show your condition and nothing else.

Sealed · on the Wall

Letter № {{ newId }} is sealed.

Nobody can read it, including us. It opens itself when:

See it on the Wall

The letter

The opening condition

Public pool

Direction

Threshold

Opens on

Calendar event on Arc

The seal was refused

Immutable once sealed. The condition cannot be edited.

Sealed preview — what the Wall will show

№ {{ newId }} Sealed

Body: {{ cipher }}

The Wall · {{ wallCount }} letters

Everything here is unreadable on purpose.

Sealed letters list only their trigger. Opened ones list everything, including their author.

№ {{ c.id }} {{ c.badge }}

{{ c.foot }}

“{{ c.excerpt }}”

{{ c.foot }}

The permanent collection

Every letter the chain has already decided.

Opened in public, kept forever, scored against what the condition revealed.

Sort

{{ r.verdict }}

About · how it works

A square where secrecy has an expiry date.

UNFOLD is a permanent digital town square on Arc. Contributors write letters that stay hidden until a price, a date or an event occurs — at which point they open themselves in public, for everyone to read together.

What the operator can do

Can

Host the Wall, run the archive, publish ciphertext, list conditions.

Cannot

Read a sealed letter, edit a condition, delay an opening, or choose who gets read first.

The chain decides. We only hold the paper.