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* adds homepage (wip) * fix footer links * update nomenclature link on blog post * small fixes and markdown format * link fix * make all docs links relative * fix vtxo links * fix errors with Safari * improves arm detection * fix bottom color * update roadmap * adds faucet instructions * change ark-cli instructions to accomodate PR 117 * instructions fixes to accomodate onboarding; ui improvements
67 lines
2.4 KiB
Markdown
67 lines
2.4 KiB
Markdown
---
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sidebar_position: 4
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title: 'Leaving the Ark'
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---
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### Overview
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Alice wants to leave the Ark and get her funds back on-chain. It requires an on-chain transaction.
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### Cooperative exit
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#### Timeline of events
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1. Alice tells ASP she wants to trade [VTXO](./nomenclature#vtxo-1) for UTXO
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2. ASP (with Alice) prepares next [Pool transaction](./nomenclature#pool-transaction-aka-ark-transaction):
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- an additional output is added, locked by `Alice`
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3. Alice creates a [Forfeit transaction](./nomenclature#forfeit-transaction):
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- spends from VTXO (1) with `Alice + ASP`
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- adds connector output from Pool transaction (2) as input
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- signs it and send it to the ASP
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4. ASP broadcasts [Pool transaction](./nomenclature#pool-transaction-aka-ark-transaction)
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5. Alice has now a new UTXO
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6. For at most 4 weeks, Alice will be able to double spend her [VTXO](./nomenclature#vtxo-1), but if she does it, the ASP will have time (24 hours) to grab the funds from the [VTXO](./nomenclature#vtxo-1) to itself using the [Forfeit transaction](./nomenclature#forfeit-transaction)
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### Non-cooperative exit
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If ASP is unresponsive, Alice can unilaterally exit revealing the branch of the Pool transaction that locks her funds.
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#### Timeline of events
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1. Assuming a [VTXO](./nomenclature#vtxo-1) tree with radix of 2 and 8 [VTXOs](./nomenclature#vtxo-1):
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```mermaid
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flowchart TB
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tx1(TX 1) --> tx2(TX 2)
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tx1 --> tx3(TX 3)
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tx2 --> tx4(TX 4)
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tx2 --> tx5(TX 5)
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tx3 --> tx6(TX 6)
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tx3 --> tx7(TX 7)
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tx4 --> v1(VTXO 1)
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tx4 --> v2(VTXO 2)
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tx5 --> v3(VTXO 3)
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tx5 --> v4(VTXO 4)
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tx6 --> v5(VTXO 5)
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tx6 --> v6(VTXO 6)
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tx7 --> v7(VTXO 7)
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tx7 --> v8(VTXO 8)
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```
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2. Assuming VTXO 1 and 2 belong to Alice and Bob
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3. Alice reveals the [VTXO](./nomenclature#vtxo-1) tree to spend the [Shared Output](./nomenclature#shared-output-aka-shared-utxo).
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4. Alice doesn't need to reveal the entire tree, just enough to validate it:
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```mermaid
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flowchart TB
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tx1(TX 1) --> tx2(TX 2)
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tx1 --> tx3(TX 3)
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tx2 --> tx4(TX 4)
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tx2 --> tx5(TX 5)
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tx4 --> v1(VTXO 1)
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tx4 --> v2(VTXO 2)
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```
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5. Alice will need to wait 24 hours to be able to spend her [VTXO](./nomenclature#vtxo-1). This gives enough time to the ASP to prevent any double spend attempts by Alice.
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6. Bob can also spend his [VTXO](./nomenclature#vtxo-1) in 24 hours, or do nothing and maintain his [VTXO](./nomenclature#vtxo-1) on the Ark.
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