Ark metadata

[BullishNode]

To recover an Ark wallet, we need:

• Ark Operator URL
• Ark Operator Pubkey
• Unilateral exit transactions list
• Boarding exit delay (relative timelock)

(Assuming derivation paths are standardized we do not need to back them up)

[pythcoiner]

(Assuming derivation paths are standardized we do not need to back them up)

we should not assume this 😄

[tiero]

In general as we move beyond basic "singlesig" that has an hardcoded script type, contract metadata (aka descriptors) are very crucial: think of HTLC preimages (Lightning Swaps, Cross Chain Swaps), Multisig setups with all the co-signer keys, Escrow contacts for P2P trades, multi party channels etc

We are experimenting with NIP-60 encrypted backups in the Arkade wallet (you can try it in Settings > Backup and privacy > Enable Nostr backups)

In this case we do have two scenarios:

• operator is online: he's basically the Nostr Relay, will have everything needed to restore not only your base VTXOs, also your contracts (Boltz swap history etc)
• operator is offline: user should have redundant data stored ie. Third party relays, iCloud/Google Drive, his own Fulmine running at home as remote companion etc

Happy to discuss and experiment together!

[pythcoiner]

I'm also interested what other arks implem will need to backup, ping @stevenroose