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Super excited about pushtx.org , major…

NVK — Wed, 26 Jun 2024 20:32:16 GMT

Super excited about pushtx.org , major UX improvement for broadcasting from COLDCARD

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Full post blog.coinkite.com/nfc-pushtx-rel…
- Firmware Upgrade coldcard.com/downloads
- PushTX spec pushtx.org
- Our telegram community t.me/coldcard
- Full demo video https://youtu.be/Tte7nddBUCI

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#COLDCARD Firmware Update

# Shared Mk4 & Q

New Features:

📳 PushTX: once enabled with a service provider's URL, you can tap the COLDCARD and your phone will open a webpage that transmits your freshly-signed transaction onto the blockchain. See Settings > NFC Push Tx to enable and select service provider, or your own webpage. More at https://pushtx.org . You can also use this to broadcast any transaction found on the MicroSD card (See Tools > NFC Tools > Push Transaction).

🕵️‍♂️ Transaction Output Explorer: allows viewing all output details for larger txn (10+ output, 20+ change) before signing. Offered for large transactions only because we are already showing all the details for typical transactions.

🏷️ Setting to enable always showing XFP as first item in home menu.

Enhancement:

⏫ When signing, show sum of outgoing value at top. Always show number of inputs/outputs and total change value.
⏫ Add Sign PSBT shortcut to NFC Tools menu
⏫ Stricter p2sh-p2wpkh validation checks.
⏫ Show master XFP of BIP-85 derived wallet in story before activation. Only words and extended private key cases.
⏫ Add Theya option to Export Wallet
⏫ Mention the need to remove old duress wallets before locking down temporary seed.

Bugfix:

👨‍🔧 Fix PSBTv2 PSBT_GLOBAL_TX_MODIFIABLE parsing.
👨‍🔧 Decrypting Tapsigner backup failed even for correct key.
👨‍🔧 Clear any pending keystrokes before PSBT approval screen.
👨‍🔧 Display max 20 change outputs in when signing, and max 10 of largest outputs, and offer the Transaction Output Explorer if more to be seen.
👨‍🔧 Calculate progress bar correctly in Address Explorer after first page.
👨‍🔧 Search also Wrapped Segwit single sig addresses if P2SH address provided, not just multisig (multisig has precedence for P2SH addresses)
👨‍🔧 Address search would not find addresses for non-zero account numbers that had been exported but not yet seen in a PSBT.

## Mk4 Specific Changes 5.3.2 - 2024-06-26

👨‍🔧 Displaying change address in Address Explorer fails if NFC and Vdisk not enabled.

## Q Specific Changes 1.2.2Q - 2024-06-26

⏫ Coldcard multisg export/import format detected in Scan Any QR Code.
⏫ Support newer-version QR scanner modules.
👨‍🔧 Exporting BIP-85 derived entropy via NFC was offered even when NFC disabled, leading to a Yikes error.

Big release for #COLDCARD Mk4 & Q…

NVK — Mon, 06 May 2024 19:27:39 GMT

Big release for #COLDCARD Mk4 & Q 🔥

Now both share the same codebase!

## Q Specific Changes - 1.2.0Q - 2024-05-06

-Allow export of multisig XPUBs via #BBQr
-Import multisig via QR/BBQr - both legacy COLDCARD export and descriptors supported
-UI Status bar text is sharper now
-Added ability to write signed PSBT/txn to lower (B) SD slot when both cards inserted
-Fullscreen display of v23 and v24 QRs were too dense and hard to read
-Battery idle timeout also considers last progress bar update
-Allow Send Password (keystrokes) of capital letters of alphabet
-Pressing SYM+SHIFT was toggling CAPS continuously. Now toggles once only
-Restrict keys that can be pressed during seed entry after final word inserted

## Mk4 Specific Changes - 5.3.0 - 2024-05-06

-When providing 12 or 18 word seed phrase, valid final word choices are presented in a new menu.
-Move dice rolls (for generating master seed) to Advanced submenu.
-Using "Verify Address" in NFC Tools menu, allows entry of a payment address and reports if it is part of a wallet this Coldcard knows the key for. Includes Multisig and single sig wallets.searches up to the first 1528 addresses (external and change addresses)
stores data as it goes to accelerate future uses
worst case, it can take up to 2 minutes to rule out an address, but after that it is fast!
-Constant AFC_BECH32M incorrectly set AFC_WRAPPED and AFC_BECH32.
-Fix inability to activate Duress Wallet as temporary seed when master seed is 12 words.
-Yikes when using BIP39 passphrase with temporary seed without master seed set.
-v1 and v2 QRs too small and not readable (fixed)
Bugfix: Show indexes for full range of addresses we are able to generate during QR display.
-Force default HW settings (USB,NFC,VDisk OFF) after clone/backup is restored.
-Cleanup in NFC code: repeated messages, "Unable to find data expectd in NDEF", removed.
Bootrom version bump: 3.2.0 released with no functional changes except those shared with Q.

## Q & Mk4 shared:

-Add
@nunchuk_io
and
@ZeusLN
options to Export Wallet
-View Identity shows temporary seed active at the top
-Can specify start index for address explorer export and browsing
-Allow unlimited index for BIP-85 derivations. Must be enabled first in Danger Zone
-Passphrase menu item is no longer offered if BIP39 passphrase already in use. Use Restore Master with ability to keep or purge current passphrase wallet settings.
-Removed ability to add passphrase to master seed if active temporary seed.
-Wipe LFS during Lock Down Seed and Destroy Seed
-Do not allow non-ascii or ascii non-printable characters in multisig wallet name
-Brick Me option for If Wrong PIN caused yikes.
-Properly handle and finalize framing error response in USB protocol.
-Handle ZeroSecretException for BIP39 passphrase calculation when on temporary seed without master secret
-Saving passphrase on SD Card caused a freeze that required reboot
-Properly verify signed armored message with regtest address
-Create ownership file when generating addresses export CSV
-Recovery SD Card image building moved into its own repo: github com/Coldcard/recovery-images

#COLDCARD Q Firmware v1.1.0Q…

NVK — Tue, 02 Apr 2024 16:26:30 GMT

#COLDCARD Q Firmware v1.1.0Q release

- Enhancement: Scan any QR and report if it is part of a wallet this Coldcard knows the key for. Includes #MultiSig and #SingleSig wallets.
- searches up to the first 1528 addresses (external and change addresses)
- stores data as it goes to accelerate future uses
- worst case, it can take up to 2 minutes to rule out an address, but after that it is fast!
- Enhancement: #CalculatorLoginMode. When enabled, the usual PIN entry screen is replaced with a functional calculator. Enter your PIN as 12-12 or 12 12 to get it. To verify anti-phishing words, use 12-.
- Bugfix: Key right of L was giving back quote, should have been single-quote. SYM+E for back quote.
- Bugfix: Constant AFC_BECH32M incorrectly set AFC_WRAPPED and AFC_BECH32.
- Bugfix: Base64 PSBT via QR was not properly decoded.
- Bugfix: Fix inability to activate Duress Wallet as temporary seed when master seed is 12 words.
- Bugfix: Switch to BBQr for larger data exports at a new lower size threshold.
- Generally, won't show tiny QR anymore with 1:1 pixels.
- Sparrow wallet export will always be BBQr now.
- Most other exports fit into a reasonable single QR.
- Bugfix: fixed Type Passwords a.k.a emulated keystrokes
- Bugfix: Yikes when using BIP39 passphrase with temporary seed without master seed set.
- Tweak: Default idle timeout when on battery, was reduced to 10 minutes from 30.
- Tweak: Cursor movements wrap around if menu is longer than screen height.
- Tweak: Force default HW settings (USB,NFC,VDisk OFF) after clone/backup is restored.
- Tweak: Cleanup in NFC code: repeated messages, "Unable to find data expectd in NDEF", removed.

upgrade here https://coldcard.com/docs/upgrade/

Final #COLDCARD Q tease before shipping.

NVK — Thu, 08 Feb 2024 17:20:43 GMT

Final #COLDCARD Q tease before shipping.

None of the clients could take the 120mb vid upload 😅

Bird https://x.com/coldcardwallet/status/1755639690357510485

BBQr - Better Bitcoin QR ()

NVK — Wed, 22 Nov 2023 19:52:07 GMT

BBQr - Better Bitcoin QR (https://BBQr.org)

Why? "I fckng hate animated qr" – ODELL

In making of #COLDCARD Q we (Coinkite) wanted a simpler, low dependency & very compressed Bitcoin Static/Animated QRs—looking for feedback

Whole source in this animated QRhttps://m.primal.net/HQyx.gif!

License: Public Domain

#COLDCARD Firmware 5.1.3 released…

NVK — Fri, 08 Sep 2023 14:17:20 GMT

#COLDCARD Firmware 5.1.3 released 🍄⏫

- New Feature: Batch sign multiple PSBT files. Advanced/Tools -> File Management -> Batch Sign PSBT
- Enhancement:
#SparrowWallet
dded as an individual export option (same file contents)
- Enhancement: change key origin information export format in multisig addresses.csv to match #BIP380 was (m=0F056943)/m/48'/1'/0'/2'/0/0 now [0F056943/48'/1'/0'/2'/0/0]
- Enhancement: Address explorer UX cosmetics, now with arrows and dots.
- Enhancement: Linked settings (multisig, trick pins, backup password, hsm users and utxo cache) separation for new main secret.
Rename Unchained Capital to Unchained
- Bugfix: Correct scriptPubkey parsing for segwit v1-v16
- Bugfix: Do not infer segwit just by availability of PSBT_IN_WITNESS_UTXO in PSBT.
- Bugfix: Remove label from Bitcoin Core importdescriptors export as it is no longer supported with ranged descriptors in version 24.1 of Core.
- Bugfix: Empty number during BIP-39 passphrase entry could cause crash.
- Bugfix: Signing with BIP39 Passphrase showed master fingerprint as integer. Fixed to show hex.
- Bugfix: Fixed inability to generate paper wallet without secrets
- Bugfix: Activating trick pin duress wallet copied multisig settings from main wallet
- Bugfix: SD2FA setting is cleared when seed is wiped after failed login due to policy SD2FA enforce. Prevents infinite seed wipe loop when restoring backup after 2FA MicroSD lost or damaged. SD2FA is not backed up and also not restored from older backups. If SD2FA is set up, it will not survive restore of backup.
- Bugfix: Terms only presented if main PIN was not chosen already.
- Bugfix: Preserve defined order of Login Countdown settings list.
- Bugfix: Remove unsupported trick pin option Look Blank from if wrong (not supported by bootrom).

- Upgrade here https://coldcard.com/docs/upgrade
- Learn more about whats coming here https://github.com/Coldcard/firmware/pulls