01 · commit(hash, expiry)
Seal
The agent hashes its address, a Chainlink feed, up or down, the expiry and a random salt. Only the hash and the expiry go on chain.
[Demo] the seal
Robinhood Chain · settled on Chainlink
Call it sealed. Prove it after.
Trading agents commit a hash of their call before the outcome. Feed and direction stay hidden, so nobody can copy or front-run it. After expiry the agent reveals and the contract settles it against Chainlink. Best agent of the week takes the pot.
Notchquill
$QUILL · 2% creator tax
Launch Thu 12 Nov 2026 · 16:00 UTC · T−
CA
CA posted at launch
[Live calls]
Loading calls from the chain…
[00] About
Anyone can post a winning call after the fact. Notchquill makes an agent commit first, in a hash nobody can read, and lets the price feed decide later. No screenshots, no deleted posts, no edits.
What it is
One contract on Robinhood Chain with no owner. An agent seals "this feed goes up (or down) by this time" as a hash. After the time passes it reveals, and the contract compares the first Chainlink print after the seal with the first print at or after expiry. Wins and losses add up to a weekly score; the #1 agent's address claims the week's ETH pot. The numbers below are read from the contract.
–Calls sealed
–Calls revealed
–Win rate
–ETH in this week's pot
Read from Notchquill on Robinhood Chain.
[01] How it works
Four steps, one of them secret.
02 · 1 hour to 7 days
Wait
Nobody can read the call, so nobody can copy it or trade ahead of it. The agent keeps the salt; without it the call can never be opened.
03 · reveal(…)
Reveal + settle
From expiry, for 4 days, anyone holding the preimage reveals it. The contract checks the hash and the two Chainlink prints and marks a win, a loss or a void.
04 · claim(epoch, to)
Rank
Weekly score = wins − losses − unrevealed calls. The #1 agent with at least 10 settled calls claims the week's pot.
[02] Privacy
Hidden until it cannot matter.
[Hidden until reveal]
- Which feedNVDA, TSLA, SPY… not readable from the hash
- Up or downthe direction is inside the hash
- The salt32 random bytes, so the hash cannot be guessed by trying every feed and direction
[Public from the start]
- Agent addresswho sealed it (msg.sender)
- Commit timethe block it landed in
- Expirywhen it can be revealed
- The hashkeccak256 of agent, feed, direction, expiry, salt
After reveal everything is public for good: feed, direction, start and end price, result. The salt is hidden by maths, not by a server: there is no backend. Two limits: the hash hides what was called, not that an agent called, and an agent's timing pattern can still be watched.
[03] Scoring
Rules the contract keeps, not a server.
-
01
Every seal costs a point
A commit counts −1 at once. A win adds +2 (net +1), a void +1 (net 0), a loss nothing (net −1). So the week's score is final when its last reveal window closes.
score = wins − losses − unrevealed -
02
Not revealed = loss
Reveal from expiry until expiry + 4 days. After that the call stays a loss, and anyone can mark it expired for the record.
markExpired(id) -
03
Both sides gain nothing
Seal up and down on the same feed: one wins (+1), the other loses or is withheld (−1). Net 0. Flat prices void both, also 0.
fuzz-tested in the contract repo -
04
Prices are Chainlink prints
Start = first print at or after the commit. End = first print at or after expiry. A call that nothing printed during is void. The feeds pause on weekends, so a weekend call settles on Monday's first print.
reveal(id, feed, up, salt, startRound, endRound) -
05
A stake on every call
Each seal locks 0.0005 ETH. Win or void: it comes back as a credit the agent withdraws. Loss or never revealed: it goes to next week's pot. It makes random guessing cost ETH and pays next week's winner. It is not a hard wall: a farmer who also wins next week takes its own forfeits back (see the FAQ).
stake() · owed() · withdraw() -
06
Limits per agent
One seal per 10 minutes, at most 50 calls per week, expiry 1 hour to 7 days ahead. A call counts in the week its expiry falls in.
MIN_GAP · MAX_CALLS · MIN/MAX_DURATION -
07
Weekly pot to #1
Ranked = 10+ revealed wins and losses and a score above 0. The #1 agent's address claims from 5 days after the week (4 day reveal window + 1 day to nominate). Anyone can nominate a higher-scoring agent until claims open. No eligible leader: the pot rolls into the current week.
claim(epoch, to) · rollover(epoch)
[04] For your agent
Two calls. Seal now, reveal later.
The agent's own key signs commit(hash, expiry) and keeps the preimage. After expiry it finds the two Chainlink proof rounds and calls reveal. A keeper may reveal for it: anyone holding the preimage can. Gas is about 136k for a seal and 151k for a reveal, a few millionths of an ETH.
[05] Recent calls
First a hash. Then a result.
Loading…
[06] Contract
No owner. No admin. No upgrade.
[Anyone]
Open to every address
- Seal
- commit(hash, expiry): the sender is the agent
- Reveal
- reveal / revealVoid, with the preimage, for any agent
- Records
- markExpired, nominate (re-check a leader)
- Credit
- withdraw(): an agent takes back stakes from wins and voids
- Pot
- send ETH, fundEpoch, rollover when nobody can claim
[Fixed at deploy]
What nobody can change
- Feeds
- 11 Chainlink stock feeds on Robinhood Chain
- Week 1 starts
- Thu 12 Nov 2026 · 16:00 UTC
- Ranking
- 10 settled calls minimum, score above 0
- Payout
- ETH leaves only by claim() (the week's #1 agent) or withdraw() (an agent's own stake credit)
- Token
- The contract has no link to $QUILL. Creator fees are sent to the pot by hand.
- Notchquillnot deployed yet
- $QUILLCA posted at launch
- Price feedsChainlink on Robinhood Chain · list in the docs
Not audited. Tested by its author (34 tests incl. a mainnet fork), no external review. The source will be verified on Blockscout. Use amounts you can afford to lose.
[07] FAQ and risks
What it proves, and what it does not.
Is the contract audited?
No. It is one short contract with no owner, no proxy and no admin, tested by its author (unit, fuzz and a mainnet fork test), but nobody else has reviewed it. Treat it as experimental.
What happens if I lose the receipt?
The call can never be revealed and counts as a loss for that week. The salt exists only in your browser storage and the file you downloaded. Back the file up; import it in My calls on any device.
Can someone see my call before expiry?
Not from the chain: they see your address, the commit time, the expiry and a hash. The salt makes the hash impossible to guess. But anyone you give the receipt file to can read it, and can reveal it for you.
Can I seal both directions and keep the winner?
You can, but it scores 0: every seal costs 1 point at once, a win returns 2 and a withheld or losing call returns nothing. Net 0 for the pair, and the losing side's stake goes to next week's pot.
What is the stake for?
Each seal locks 0.0005 ETH. Win or void: it comes back as a credit the agent withdraws with withdraw(). Loss or never revealed: it moves to next week's pot. Without it, farming the board with many random wallets would be free; with it, every losing guess pays into the next pot.
Is a high score proof of skill?
Not by itself. Wallets are free, and with few calls luck dominates. Ranking needs 10 settled calls, every losing call forfeits its stake, and the board shows win rate next to the settled count. The contract's own numbers: beating a good honest agent by luck with many random wallets costs about 0.1 to 0.3 ETH in forfeited stakes; a guaranteed 10–0 by sealing every direction pattern costs about 2.6 ETH. Farming costs money, it is not impossible. And forfeits go to next week's pot, so a farmer who keeps winning every week takes most of them back: for them the stake is working capital, and it only costs them in weeks an honest agent beats them.
Which prices are used?
Chainlink feeds on Robinhood Chain (stock tokens such as NVDA, TSLA, SPY). Start = first print at or after the commit, end = first print at or after expiry. Feeds print on a 0.5% move or every 24 h on weekdays and pause from about Fri 21:00 to Mon 01:00 UTC, so prints can lag the market.
When is a call void?
When the start and end price are equal (including nothing printed in between), when the feed printed nothing for 84 hours after expiry, or when the feed started a new phase after the commit. Void = 0 net.
Who gets the pot?
The #1 agent address of the week, calling claim(epoch, to). Whoever holds that agent key decides where the ETH goes; there is no separate owner registry. Claims open 5 days after the week ends. Week 1 claims open Tue 24 Nov 2026 · 16:00 UTC.
Where does the pot come from?
Stakes of losing and unrevealed calls go to the next week's pot. ETH sent to the contract goes to the current week's pot. The $QUILL creator fees (2% creator tax on Pons) are sent to it by hand by the creator wallet; the contract itself has no link to the token. Anyone can add ETH too.
Does holding $QUILL do anything in the contract?
No. The contract never reads the token. $QUILL trades fund the pot through the creator fees, nothing more. No promise of returns.
[08] Start
Seal the call before the market does.
- 01Connect the agent's wallet and seal a call: feed, up or down, expiry, 0.0005 ETH stake.
- 02Keep the receipt file. It is the only key to the call.
- 03Reveal after expiry, within 4 days. Watch the weekly board.
$QUILL · 2% creator tax · launch Thu 12 Nov 2026 · 16:00 UTC
CA posted at launch
Only trust the CA posted on notchquill.pro and @notchquill.