The interior was unlined when I received it as the ideal materials are still being determined.
A Whatsminer M31S ran at about 82dB with no liner and the lid open. When the lid was closed, the #BlackBox attenuated the noise by about 24 dB.
I settled on a layer of carpet padding with a layer of sound board on top. On the exhaust side I added a layer of foil tape to the flammable sound board for good measure.
Drilled through the side and mounted a watertight junction box on the outside and an interior junction box on the inside with bolts going through the wall to hold them in place. I used a cork gasket on the outside wall & mounted the outlets on the inside.
I'm thrilled to be the first recipient of the #BlackBox :) Hope this gives you all some food for thought and I can't wait to see what everyone else comes up with.
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2/12 There are 3 key pieces of info you need for your backup. #1 is seed words. They always need to be in order and in the case of @SamouraiWallet, you get 12 of them. Kiboruto features etched numbered boxes to keep these words in order. Never share them with anyone!
3/12 Key piece of info #2 is your passphrase. The wallet requires one but doesn't generate it for you nor does it know if your passphrase is correct upon recovery. Every passphrase generates a valid wallet. Kiboruto has a dedicated passphrase plate so you can store it separately.
2/16 Self-custody means you have the radical responsibility of securing your #Bitcoin backup. Geographically distributed water & fire proof backups are a good starting point. The @hodlrswiss One Titanium backup makes that pretty easy.
3/16 The One Titanium supports both BIP39 (github.com/bitcoin/bips/b…) & SLIP39 (slip39.com). This product involves converting standardized seed words into a corresponding numbered index. Exercise caution when making such conversions.
15/19 Side note, while waiting for that transaction, if you're interested in building your own #Bitcoin full node on a @Raspberry_Pi, here is how I built mine:
16/19 Once received in the Bitcoin Core wallet, send some #BTC to @COLDCARDwallet. You can export a list of receiving addresses to a .txt file & transfer via microSD to the Raspi node then copy/paste. Bech32 addresses seem to work best for PSBT, FYI. Verify address on the CC.
17/19 In conclusion, showed how to set up @COLDCARDwallet, generate WIF for mobile @bluewalletio & Bitcoin Core, & moved some #BTC to all 3 wallets. I hope you found some useful information here.
2/24 Whirlpool is a zero-link CoinJoin implementation that can be found in both @SamouraiWallet for mobile Android users as well as @SparrowWallet for desktop users. For the best privacy practices don't trust someone else's node, run your own @RoninDojoNode
3/24 Whirlpool breaks deterministic links that exist on the Bitcoin blockchain. These links are often exploited by law enforcement working with exchanges & chain analysis companies to invade your privacy & track your transactions. Even people you transact with might snoop around.
1/18 Bear market mining, what can home miners do to survive? In this first part of a series on survival tips, I suggest setting expectations based on BTC price & hashrate so miners can be better prepared to make good decisions in stressful situations.
2/18 Miners face a lot of variables, the volatility of BTC price and hashrate specifically though can quickly change a miner's outlook. Setting some operating bands can help you remain calm and avoid making costly mistakes.
3/18 Setting these operating bands involves 3 steps:
1) Where do you stand today? 2) How high can hashrate go if the price stays flat? 3) How low can the price go if hashrate stays flat?
To help find these thresholds, this is a great tool:
2/32 All #Bitcoin transactions are public & anyone can see them with a block explorer. Whirlpool breaks deterministic links and diminishes on-chain heuristics to weak subjective interpretations. Gain forward looking anonymity & transact without the privacy invasion.
3/32 Navigate to bitcoincore.org/en/download/ and follow the instructions to download the latest version of Bitcoin Core to your PC. It takes a few days to sync the whole blockchain and it takes up a lot of space, have at least 500GB of disk space available.