Second

Simple developer solutions for integrating bitcoin payments into your apps. Fast, low-fee, self-custodial. Supports Lightning, Ark, and on-chain.

[Second @secondhq]

1/ Today we're launching our implementation of the Ark protocol on signet! This is our first major step toward bringing Ark to bitcoin mainnet, and we're inviting developers to help us test, explore, and break things (preferably in that order).

[Carlos Marques @2ndpsy]

We have Wasm docs and a prompt ready for you to get started quickly! Link below.

[Second @secondhq]

@arejula27 Should have included some attribution on that update. Fixed on the changelog.

[Íñigo @arejula27]

Bear markets are for building 👀

A contribution I made to @secondhq just shipped. More composability for builders = lower barrier to Bitcoin adoption.

Ark is coming.

[SatsAndSports @SatsAndSports]

I love how consistently Second demonstrate commitment to unilateral exit in bArk

Ideally, I'll never have to use it; but that's not the point

[Second @secondhq]

6/ Lots more updates, including LockManager, custom history metadata, hardened VTXO policy decoding, and more available in our docs: https://t.co/IPH74nnGKi

[Second @secondhq]

1/ Changelog catch-up. We're covering the best bits from three recent releases: 0.1.4, 0.2.0, and 0.2.1.

First up, slim VTXO storage. Bark now keeps each VTXO in a slim "bare" form—around 200 bytes per VTXO, a 20–100x cut in memory for wallets with many or deep VTXOs.

[Second @secondhq]

5/ Boarding just got friendlier for external wallets: you can build and sign the funding transaction with your own wallet, then hand bark a pre-signed PSBT to finish the job.

[grubles @notgrubles]

Trying out @simulx4's qpayd, a minimal daemon that can interact with a backend LN node to generate invoices and display them.

Super simple and easy to set up if you want to accept tips / donations or if you want to avoid having to set up a full blown BTCPay Server instance.

Also supports barkd as a backend to make it even easier to get running accepting payments.

https://t.co/dYGrbHCprp

[bitcoin++ @btcplusplus]

Are ARK and Lightning competitors, or better together? @renepickhardt weighs in at @btcplusplus econ edition in Vienna

[benthecarman @benthecarman]

https://t.co/je8QasaAbY

A lot of the old mutiny features are disabled (nwc, nostr contacts, etc) but it works!

[Neil Woodfine @nwoodfine]

By popular demand, now you can build web wallets.

[Neil Woodfine @nwoodfine]

AI is great but so is @secondhq’s SDK.

[benthecarman @benthecarman]

In an hour I got bark working in the old Mutiny UI

I love ai

[grubles @notgrubles]

Tinkering with some ideas for how to visually display @secondhq Ark VTXO data while maintaining the cool @mempool aesthetic.

[Carlos Marques @2ndpsy]

And bark-web has 300+ tests 😌

[Matthew Vuk 🛳️ @matthewvuk2]

Arké wallet is in style at @btcplusplus ✨

@arkebitcoin powered by @secondhq

[grubles @notgrubles]

Important to note this is all decoded client-side to preserve privacy.

Second's Ark is uniquely privacy preserving since it does not make transaction data public.

It's only right that tools to inspect your offchain data be equally private.