What Is a Bonder on Pieces?
June 2, 2026
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. The pool is capped at a fixed bond target, so a Piece only takes as much bonding as it needs:
- 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.
So a bonder puts money up to help a creator they believe in, and willingly accepts losing it if the goal is missed.
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. 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.