# Protocol
**URL:** https://community.second.tech/c/protocol/2.md
[Latest](https://community.second.tech/latest.md) · [Categories](https://community.second.tech/categories.md) · [Tags](https://community.second.tech/tags.md)
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## [Dog Pack: A Proposal for Private In-Round Bark Transfers](https://community.second.tech/t/dog-pack-a-proposal-for-private-in-round-bark-transfers/230)
**Author:** [@randy](https://community.second.tech/u/randy)\
**Replies:** 5\
**Last updated:** [October 1, 2026, 11:49am UTC](https://community.second.tech/t/dog-pack-a-proposal-for-private-in-round-bark-transfers/230 "2026-10-01T11:49:18Z")
I have a new proposal on how refreshes can be made more private. The core of my proposal focuses on breaking the link between input attesta…
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## [RFC: Standardizing Virtual Transaction Templates for Cross-Implementation Interoperability](https://community.second.tech/t/rfc-standardizing-virtual-transaction-templates-for-cross-implementation-interoperability/181)
**Author:** [@jgmcalpine](https://community.second.tech/u/jgmcalpine)\
**Replies:** 2\
**Last updated:** [February 5, 2026, 2:30am UTC](https://community.second.tech/t/rfc-standardizing-virtual-transaction-templates-for-cross-implementation-interoperability/181 "2026-02-05T02:30:19Z")
Hi, I’ve been conducting a side-by-side audit of the transaction construction logic in both the Ark Labs (arkd) and Second (bark) repositor…
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## [Standard BIP-32 derivation path for Ark?](https://community.second.tech/t/standard-bip-32-derivation-path-for-ark/154)
**Author:** [@basantagoswami](https://community.second.tech/u/basantagoswami)\
**Replies:** 4\
**Last updated:** [October 21, 2025, 8:42pm UTC](https://community.second.tech/t/standard-bip-32-derivation-path-for-ark/154 "2025-10-21T20:42:05Z")
Do we have a standard derivation path that a wallet should use to create an Ark wallet? I checked the Spark docs and they have one defined f…
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## [When Ark is more efficient than an LSP for Lightning payments (and when it isn't!)](https://community.second.tech/t/when-ark-is-more-efficient-than-an-lsp-for-lightning-payments-and-when-it-isnt/128)
**Author:** [@nwoodfine](https://community.second.tech/u/nwoodfine)\
**Replies:** 0\
**Last updated:** [May 1, 2025, 2:12pm UTC](https://community.second.tech/t/when-ark-is-more-efficient-than-an-lsp-for-lightning-payments-and-when-it-isnt/128 "2025-05-01T14:12:50Z")
We’ve just published some research into Ark liquidity on our blog, comparing the liquidity efficiency of an LSP vs an Ark server (when it’s …
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## [330 sats fee for sending LN and boarding](https://community.second.tech/t/330-sats-fee-for-sending-ln-and-boarding/98)
**Author:** [@Impalor](https://community.second.tech/u/Impalor)\
**Replies:** 2\
**Last updated:** [March 20, 2025, 7:13pm UTC](https://community.second.tech/t/330-sats-fee-for-sending-ln-and-boarding/98 "2025-03-20T19:13:58Z")
I tried paying a 100 sats invoice and boarding onchain funds. both actions charged me 330 sats fee (for boarding it was on top of tx fee). W…
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## [Protocol description](https://community.second.tech/t/protocol-description/101)
**Author:** [@Filip](https://community.second.tech/u/Filip)\
**Replies:** 1\
**Last updated:** [March 20, 2025, 9:47am UTC](https://community.second.tech/t/protocol-description/101 "2025-03-20T09:47:16Z")
Hi, I have just tried the bark and bought the bone :slight\_smile: Good job! Where can I find the most descriptive, exact and current descr…
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## ["But after the expiry the Ark server could claim the funds and sweep them"](https://community.second.tech/t/but-after-the-expiry-the-ark-server-could-claim-the-funds-and-sweep-them/97)
**Author:** [@Impalor](https://community.second.tech/u/Impalor)\
**Replies:** 1\
**Last updated:** [March 20, 2025, 12:12am UTC](https://community.second.tech/t/but-after-the-expiry-the-ark-server-could-claim-the-funds-and-sweep-them/97 "2025-03-20T00:12:04Z")
What does this mean? Will the vtxos be automatically converted to my onchain balance if the wallet loses internet connection for 24 hours an…