LibraryInteroperability2021Design paperCorpus record
Hop: transfer bonds and an AMM between rollup representations
Hop Protocol. Hop.
Hop publishes a transfer that mints a hop token against a bonded rollup exit, then swaps that representation through an AMM so a user does not wait out the rollup's full exit.
A reading of the project's public design document. Not a copy, not a benchmark, and not an offer.
Hop publishes a transfer that mints a hop token against a bonded rollup exit, then swaps that representation through an AMM so a user does not wait out the rollup's full exit.
- Evidence
- Primary paper
- Re-measured
- No
- Assumptions
- 3
- Records linked
- 3
01 Claim ledger
What the paper is allowed to say
Each row is a sentence already in the study. The status is the same on every row: a model claim, not a live measurement.
Claim 01 · Paper model
The defect
The fast path is someone else's bond. The slow path is the rollup's own exit. Mixing them up is how a bridge is mis-described.
Claim 02 · Paper model
The proposal
Hop publishes a transfer that mints a hop token against a bonded rollup exit, then swaps that representation through an AMM so a user does not wait out the rollup's full exit.
Claim 03 · Paper model
The mechanism
A bonder fronts liquidity and is repaid when the rollup message finalises. The bonder's capital is the fast path.
Claim 04 · Paper model
The bound
No liquidity figure is stated here.
02 Three cuts
Observation, model, falsifier
A desk does not stop at the summary. Each claim is cut three ways, using only this study's own assumptions and checks. Nothing here is a new figure.
01 The defect
Observation
What the study says
The fast path is someone else's bond. The slow path is the rollup's own exit. Mixing them up is how a bridge is mis-described.
Model
What has to hold
You are reading Hop's documentation. A later router that hides the bonder has changed the design.
Falsifier
What would retire it
Who bonds the fast transfer?
02 The proposal
Observation
What the study says
Hop publishes a transfer that mints a hop token against a bonded rollup exit, then swaps that representation through an AMM so a user does not wait out the rollup's full exit.
Model
What has to hold
The document is the one at the source URL. A marketing page with the same brand is not this text.
Falsifier
What would retire it
Who bonds the fast transfer?
03 The mechanism
Observation
What the study says
A bonder fronts liquidity and is repaid when the rollup message finalises. The bonder's capital is the fast path.
Model
What has to hold
You are reading Hop's documentation. A later router that hides the bonder has changed the design.
Falsifier
What would retire it
What message must finalise before the bonder is made whole?
04 The bound
Observation
What the study says
No liquidity figure is stated here.
Model
What has to hold
No price, supply, yield, or adoption figure is added by this desk.
Falsifier
What would retire it
Who bonds the fast transfer?
03 Sequence
One action, as an operating tape
- 01A bonder fronts liquidity and is repaid when the rollup message finalises. The bonder's capital is the fast path.
- 02The AMM trades the intermediate representation. Its price can move. That price is not the rollup's official exit.
- 03If no bonder is willing, the user still has the slow exit the docs describe, or they do not, and the docs must say which.
04 Load-bearing
The argument, and where a pitch drops it
What the name has to mean
The cut
Hop publishes a transfer that mints a hop token against a bonded rollup exit, then swaps that representation through an AMM so a user does not wait out the rollup's full exit.
Why it carries weight
If this cut is skipped, the paper's name is being used without the mechanism that makes the name mean anything.
Where it is dropped
A later client, parameter or reward formula is a different object from this paragraph.
What actually moves
The cut
The AMM trades the intermediate representation. Its price can move. That price is not the rollup's official exit.
Why it carries weight
If this cut is skipped, the paper's name is being used without the mechanism that makes the name mean anything.
Where it is dropped
A later client, parameter or reward formula is a different object from this paragraph.
What a later deployment may change
The cut
If no bonder is willing, the user still has the slow exit the docs describe, or they do not, and the docs must say which.
Why it carries weight
If this cut is skipped, the paper's name is being used without the mechanism that makes the name mean anything.
Where it is dropped
A bonder can censor a fast fill. That is a liveness assumption of the fast path only.
05 Register
What has to be true
Model · Not re-measured
You are reading Hop's documentation. A later router that hides the bonder has changed the design.
Model · Not re-measured
The document is the one at the source URL. A marketing page with the same brand is not this text.
Model · Not re-measured
No price, supply, yield, or adoption figure is added by this desk.
06 Divergence
What happened after the paper
This does not make two rollups share security.
A later client, parameter set, or reward formula is a different object. Cite this paper for the mechanism. Cite a primary release for the network. This desk has not re-run the proof.
07 Pre-mortem
What to check before you use the idea
- 0 of 3 marked on this browser. A mark is a reading note, not a pass, a rating, or a recommendation.
08 Anatomy
The paper, in the order a builder needs
The problem it names
The fast path is someone else's bond. The slow path is the rollup's own exit. Mixing them up is how a bridge is mis-described.
What the design proposes
- A bonder fronts liquidity and is repaid when the rollup message finalises. The bonder's capital is the fast path.
- The AMM trades the intermediate representation. Its price can move. That price is not the rollup's official exit.
- If no bonder is willing, the user still has the slow exit the docs describe, or they do not, and the docs must say which.
How the mechanism is specified
- A bonder fronts liquidity and is repaid when the rollup message finalises. The bonder's capital is the fast path.
- The AMM trades the intermediate representation. Its price can move. That price is not the rollup's official exit.
- If no bonder is willing, the user still has the slow exit the docs describe, or they do not, and the docs must say which.
What this page does not treat as proven
- No liquidity figure is stated here.
- A bonder can censor a fast fill. That is a liveness assumption of the fast path only.
- This does not make two rollups share security.
09 Lexicon
Terms, opened into the record
- Bonder
- A party that fronts a transfer and waits for the rollup message.
- Hop token
- The intermediate representation. It is not the canonical asset on the destination.
10 Repository
Every linked record on this page
Underlined words open a page that already exists: a concept, a protocol profile, a failure record, or another paper. If a word is not underlined, this desk does not have a record for it.
This is Blockchain Lab's reading of a public design paper. It is not the paper, not a copy of it, and not an offer of tokens, equity, custody or a partnership. Later network behaviour can diverge from the text. Nothing here is investment, legal or technical advice.
Research status: Design paper. Last reviewed: 1 October 2026. This is a reading of a public paper, not investment, legal or security advice.