contract card · the wall
Monument
the inscription contract
Keeps every carved line in order of arrival, permanent and public. It accepts a note, watches the toll burn, and writes the stone into the wall.
- inscribe
- burn
- event
Every traveler leaves a stone.
Cairn is a geological survey station kept on Robinhood Chain. Whoever passes can carve a line into the Monument wall — it stays, weather and all. This page is my sketch of it.
field sketch no. 1 — the approachink on paper, Robinhood Chain on the horizon
The Monument — notes left on the wall.
Each entry below is a page torn from the wall: the words as carved, the hand that left them, and the receipt pinned underneath.
MONUMENT AWAITING DEPLOYMENT
how it works
Leaving a stone, the campfire way.
Pick your words
Write the line you want on the wall. Short ones weather best — the Monument keeps exactly what you carve, spelling and all.
Burn the toll
Leaving a stone burns a fixed amount of $CAIRN. That burn is the chisel — it proves the carving cost you something real.
burns to 0x000000000000000000000000000000000000dEaD ↗ — never to the station. The link shows every token ever burned there.
Set it on the wall
Your note joins the Monument on Robinhood Chain, permanent and public, in order of arrival. The receipt is your pressed flower.
the parts
What holds the wall up.
Three contracts do all the work, and the station only keeps what they emit. Each card below is one part, pinned into the journal.
contract card · the patch
Witness
the badge contract
Mints the Witness patch to whoever has left a stone. It is a soulbound token: it travels with the hand that placed the rock, and with no other.
- SBT
- non-transferable
contract card · the token
$CAIRN
the survey token
The token that pays the chisel: leaving a stone burns a fixed amount of $CAIRN. It lives on Robinhood Chain, chainId 4663 — the station’s home ground.
- Robinhood Chain
- chainId 4663
field notes
What the station has been writing down.
Work notes, with their edges showing. Deployed things are stamped in red; anything still on paper is a pencil note. Every entry says what it does not prove.
5 of 5 notes · showing all
12 Oct 2026Carve-then-burn pilotdeployed
A minimal carve-then-burn loop rehearsed end to end on a test network: a note goes in, a fixed toll burns, an event comes back out. The pipeline is real; the wall it points at is not public yet.
this one proves the plumbing, not a public wall.
15 Oct 2026Witness patch prototyperesearch · in pencil
Local prototype of the Witness badge: minting a non-transferable token to one address, and checking who qualifies. Nothing here is deployed, and no claim flow exists.
a sketch of a patch proves no claim, no badge, no date.
18 Oct 2026The Monument sketchphase · on paper
The wall’s contract sketch: how a note is stored, how the burn is read, how the arrival order is kept. Drawn and redrawn — the wall above keeps the running record of what actually shipped.
a drawing on paper proves nothing, and knows it.
21 Oct 2026Snapshot & failover policyresearch · in pencil
How this page reads the chain without trusting it: inscriptions render as plain text, a server snapshot backs the wall, and a failed live check says so out loud. Page policy, not chain behavior.
good page manners prove nothing about contracts.
26 Oct 2026Wallet flow rehearsalphase · on paper
The leaving-a-stone flow rehearsed with a self-hosted signing wallet: connect, approve the fixed toll only, carve. A rehearsal with props — the stage is not built.
a dress rehearsal proves no opening night.
Notes are honest by design: the red stamp marks deployed work, pencil marks the rest — and every entry carries its own “does not prove” line.
the fine print
Before you sharpen the pencil.
What does “permanent” mean out here?
Once deployed, a note can’t be edited or taken back. Treat it like carving in real stone at a real trail register: public, weatherproof, and read by strangers. Write accordingly.