Copay wallet

Since SatoshiLabs released its TREZOR "Bitcoin Safe" hardware wallet back in 2013, building an integration for Copay users has been on our to-do list. With Copay version 1.5.0, our desktop Chrome app can now work directly with TREZOR devices.TREZOR allows bitcoin users to store their private keys on an external offline hardware device. This keeps funds safe from vulnerabilities – accidental or malicious – that can affect devices connected to the Internet. Whenever a TREZOR user wants to send money, they can use TREZOR to sign their bitcoin transaction – all without exposing their private keys to those potentially-compromised devices or networks.We have a few use cases for TREZOR's Copay integration that we're excited to share with our users:Creating your First Copay TREZOR walletCreating a personal Copay wallet with TREZOR as a signing device is easy.On the Create view of the Copay Chrome App, click on Show Advanced Options and select TREZOR Hardware Wallet under Wallet Seed.Once you hit Create in Copay, the TREZOR app will pop up and prompt you to export two public keys.Your new wallet will work just like any other Copay wallet, but once you need to sign a transaction, you'll need to view and confirm the transaction details on your linked TREZOR device.Adding Restricted-Access DevicesYou can also add devices that are restricted from signing funds themselves. Just export the TREZOR-connected Copay wallet and import it into your phone or other device. Now you'll be able to check your wallet balance and transaction history and create spend proposals from any device.Transactions are still signed only from the TREZOR device through your TREZOR-connected Copay Chrome App, and no private keys are stored online.Securing TREZOR Funds With MultisigWith Copay, TREZOR users can add multisignature to their wallets for increased wallet security or shared wallet ownership.To do that, just select TREZOR in Advanced Options when creating or joining a shared wallet. Any multisig combination is allowed, and each Copay multisig wallet can connect to TREZOR, Ledger, or software wallets.Restoring Copay Funds From TREZORIn case you lose access to the Copay Chrome App you've used to host a Copay TREZOR wallet, you can fully recover the wallet with just the TREZOR device. Install the Copay Chrome App again, go to Import Wallet, and select TREZOR under the Hardware Wallet tab.To finish restoring your wallet, import the funds held on your TREZOR directly into Copay by going to Import Wallet and entering the 24-word seed backup.Please refer to our Hardware Wallet Support Section in our Copay README for more details.Getting Started With Copay's TREZOR IntegrationTo get started with the new integration, download the latest version of our Copay Chrome app, and let us know what you think at BitPay Labs. As

Of your wallet you can go to settings, choose your wallet, click in "more options", then "wallet information", scroll to the bottom and click in "Extended Private Key". That information is enough to sign any transaction from your wallet, so be careful when handling it!The backup also contains the key publicKeyRing that holds the extended public keys of the Copayers.Depending on the key derivationStrategy, addresses are derived usingBIP44 or BIP45. Wallets created in Copay v1.2 and forward always use BIP44, all previous wallets use BIP45. Also note that since Copay version v1.2, non-multisig wallets use address types Pay-to-PublicKeyHash (P2PKH) while multisig wallets still use Pay-to-ScriptHash (P2SH) (key addressType at the backup):Copay VersionWallet TypeDerivation StrategyAddress TypeAllBIP45P2SH≥1.2Non-multisigBIP44P2PKH≥1.2MultisigBIP44P2SH≥1.5Multisig Hardware walletsBIP44 (root m/48’)P2SHUsing a tool like Bitcore PlayGround all wallet addresses can be generated. (TIP: Use the Address section for P2PKH address type wallets and Multisig Address for P2SH address type wallets). For multisig addresses, the required number of signatures (key m on the export) is also needed to recreate the addresses.BIP45 note: All addresses generated at BWS with BIP45 use the 'shared cosigner index' (2147483647) so Copay address indexes look like: m/45'/2147483647/0/x for main addresses and m/45'/2147483647/1/y for change addresses.Since version 1.5, Copay uses the root m/48' for hardware multisignature wallets. This was coordinated with Ledger and Trezor teams. While the derivation path format is still similar to BIP44, the root was in order to indicate that these wallets are not discoverable by scanning addresses for funds. Address generation for multisignature wallets requires

Run NBitcoin-Google-Colab NOTE WE HAVE DETECTED SOME FAKE COPAY WALLETS ON THE GOOGLE PLAY STORE FOR ANDROID, PLEASE BE SURE TO INSTALL "BITPAY WALLET" ONLY FROM THE APP STORES. APP's DEVELOPER SHOULD BE "BITPAY INC" ONLYBitpay Wallet (formerly Copay) is a secure Bitcoin, Bitcoin Cash, Ethereum and ERC20 wallet platform for both desktop and mobile devices. Bitpay Wallet uses Bitcore Wallet Service (BWS) for peer synchronization and network interfacing.Binary versions of Bitpay Wallet are available for download at: project was created by BitPay Inc, and it is maintained by BitPay and hundreds of contributors.Main FeaturesBitcoin, Ethereum, Bitcoin Cash and XRP supportMultiple wallet creation (BTC, BCH and ETH) and management in-appIntuitive, multisignature security for personal or shared walletsEasy spending proposal flow for shared wallets and group paymentsBIP32 Hierarchical deterministic (HD) address generation and wallet backupsDevice-based security: all private keys are stored locally, not in the cloudSupport testnet wallets for all supported coins.Synchronous access across all major mobile and desktop platformsPayment protocol (BIP70-BIP73) support: easily-identifiable payment requests and verifiable, secure bitcoin paymentsSupport for over 150 currency pricing options and unit denomination in BTCMnemonic (BIP39) support for wallet backupsPaper wallet sweep support (BIP38)Email for payments, transfers, confirmations, etc.Push notifications (only available for ios and android versions)Customizable wallet naming and background colorsMultiple languages supportedSee more details and download links at specific featuresBitcoinSegwit and native segwit addresses (BECH32) for sending and receivingCPFP (Child pays for parent) transaction acceleration (available after 4 hours of unconfirmed TXs).Transaction fee adjustment using 4 preset levels (using bitcoin-core estimations) OR

BitPay's Adopted Conventions for Bitcoin Cash Addresses, URIs, and Payment Requests Follow UPDATE, 1/16/18: The BitPay and Copay wallets now use the BitcoinABC Cashaddr address format, starting in version 3.12.1. This article is now outdated and only applies to BitPay and Copay wallet versions before 3.12.1. Learn more. BitPay recently launched a public beta for Bitcoin Cash support in our Copay bitcoin wallet. To prevent users from accidentally sending Bitcoin Cash to a Bitcoin wallet and vice versa, BitPay is adopting a few new conventions for addresses, payment URIs, and BIP70 payment requests. We will follow these conventions in all of our software that supports the Bitcoin Cash block chain.AddressesLike Bitcoin, Bitcoin Cash supports pay to public key hash (p2pkh) and pay to script hash (p2sh) addresses. These addresses include a version byte. To prevent users from unintentionally sending BCH to a BTC wallet or BTC to a BCH wallet, we will use a distinct version byte for BCH addresses. The version byte is set to 28 for p2pkh addresses and 40 for p2sh addresses. All BitPay software, including block explorers, will use these new address versions. Historical data extending back prior to the BCH fork will also be presented using these new conventions. This means that in some circumstances when researching history of both BTC and BCH, it may be necessary to convert addresses between formats.Payment URIsWe will use the new protocol specifier “bitcoincash:” for payment URIs. When generating a BCH URI, addresses will be specified using the new address formats. When decoding a BCH URI, we will only accept addresses using the Bitcoin Cash address formats.For short term compatibility reasons, we will allow a BTC address to be used in a BCH URI. This would allow our wallet software to send BCH to an address obtained from a wallet or exchange that does not yet support these new conventions. Conversely, we will offer a means of creating a BCH URI using a BTC address to receive a payment from a wallet or service that has not yet adopted these new conventions. Once it appears that most wallets and services will adopt these new conventions in the near future, it will not be necessary for us to maintain these compatibility features.BIP-70 Payment RequestsPayment requests as specified by BIP-70 include a network field. For BCH payment requests, the network field will be set to “bitcoincash”.

Configuration (2-of-3, 3-of-5, 6-of-6, etc.). Once a transaction proposal is created, the proposal is distributed among the wallet participants for each to sign the transaction locally. Finally, when the transaction is signed, the last signing participant will broadcast the transaction to the Bitcoin network.Bitpay Wallet also implements BIP32 to generate new addresses for peers. The public key that each participant contributes to the wallet is a BIP32 extended public key. As additional public keys are needed for wallet operations (to produce new addresses to receive payments into the wallet, for example) new public keys can be derived from the participants' original extended public keys. Once again, it's important to stress that each participant keeps their own private keys locally - private keys are not shared - and are used to sign transaction proposals to make payments from the shared wallet.For more information regarding how addresses are generated using this procedure, see: Structure for Deterministic P2SH Multisignature Wallets.Bitpay Wallet Backups and RecoverySince v1.2 Bitpay Wallet uses BIP39 mnemonics for backing up wallets. The BIP44 standard is used for wallet address derivation. Multisig wallets use P2SH addresses, while non-multisig wallets use P2PKH.Information about backup and recovery procedures is available at: versions of Bitpay Wallet used files as backups. See the following section.It is possible to recover funds from a Bitpay Wallet Wallet without using Bitpay Wallet or the Wallet Service, check the Copay Recovery Tool.Wallet Export FormatBitpay Wallet encrypts the backup with the Stanford JS Crypto Library. To extract the private key