What Is a Bonder on Pieces?
· Updated
A bonder is a supporter who stakes money up front to help a Piece reach its funding goal, earning a creator-set kickback if it funds and forfeiting the stake to backers if it does not.
A bonder is a supporter who stakes their own money up front to help a crowdfunding campaign reach its goal. It is the role that lets a creator be backed by people who believe in them before the work is ever public.
What a bonder does
When a creator publishes a Piece, they set a funding goal, a deadline, and a kickback percentage. Bonders stake money into a bond pool on that Piece, standing behind the creator. Anyone can bond, at any point while the Piece is live, including the creator themselves. The pool is capped at the bond target, which is the kickback percentage times the funding goal, so a Piece never takes on more bonding than the kickback it can pay out:
- If the Piece funds, bonders get their stake back plus the kickback the creator sets, split pro-rata across all bonders.
- If the Piece fails, bonders forfeit their entire stake, which is paid out to backers on top of their full refund. The one exception is a Piece that ends with no backing at all, where there is no bonus to pay and bonds are returned.
So a bonder puts money up to help a creator they believe in, and willingly accepts losing it if the goal is missed. Bonding also closes the moment a Piece funds, so a bond is only ever placed while the outcome is still genuinely open.
Why bonders matter
Bonders do two important jobs:
- They fund the backer bonus. In a dominant assurance contract, backers are refunded plus a bonus if the project fails. That bonus comes from the bonders’ forfeited stakes.
- They send a confidence signal. A Piece with a large, willing bond pool is a public statement that people expect it to fund. Backers can read that signal before deciding to fund.
Bonders are supporters, not spectators
The point of bonding is the work itself. A bonder wants the Piece to fund because funding is what gets the content made and released publicly, for everyone to enjoy, themselves included. Bonders are standing behind a creator, not speculating against anyone.
This is why we describe a Piece as a small pre-information market: a market on a creative work that exists before the work is public, where supporters help fund its release.
Frequently asked questions
What is a bonder? +
A bonder is a supporter who stakes money up front to help a crowdfunding campaign reach its goal. On Pieces, bonders earn a creator-set kickback if the Piece funds, and forfeit their stake to backers if it does not.
What does a bonder get when a Piece funds? +
They get their stake back plus a kickback the creator set, paid out of the funded amount and split pro-rata across all bonders. The bond pool is capped at the kickback percentage times the funding goal, so each bonder's share depends on how full the pool is when the Piece funds. Above all, the work they wanted gets made and released.
What happens if the Piece does not fund? +
The bonder forfeits their stake, which is distributed to backers along with their full refund. Bonding means accepting that you may lose the stake in order to help a creator you believe in.
Why do bonders exist? +
Bonders strengthen a campaign and fund the bonus backers receive if a Piece fails. A willing bond pool is also a public signal that people believe in a creator and a goal.
Can a creator bond their own Piece? +
Yes. A creator can stake into their own bond pool at any point while the Piece is live, just like any other bonder. A self-bonded Piece is a strong signal: the creator is personally promising to help pay backers if the goal is missed, which is exactly how Alex Tabarrok's original dominant assurance contract worked.