Account Preparation

You need to prepare some accounts, which will be used later for registration and running the exSat client.

For Synchronizers

• Your mining pool's block address list: exSat requires that a mining pool must have successfully mined a block within the last 432 BTC blocks (about 3 days) to qualify as a Synchronizer. The registration method for a Synchronizer is completed by adding the Synchronizer account using OP_RETURN in the coinbase transaction of a newly mined BTC block. But exSat starts synchronizing BTC blocks from block 840,000, and the latest BTC block has already exceeded 850,000. Therefore, before catching up with the latest BTC block, exSat needs to use a whitelist method to register the mining pool as a Synchronizer. Therefore, your mining pool needs to prepare your mining address list for submission to exSat to register as a Synchronizer.

• An EVM address for receiving XSAT rewards: This's an EVM address and is generally managed by financial officer. All rewards of the Synchronizer will be distributed to this address, and financial officer can use this account to claim rewards. If you don't have an EVM address before, you can refer to this this guide to register one (using MetaMask). This address does not require any registration on exSat. You can directly use your existing EVM address from other networks, such as Ethereum.

• A BTC test3 network wallet with at least 0.01 BTC. During the Synchronizer account registration process, you will be required to transfer 0.01 BTC to an BTC account owned by exSat. These funds will be bridged to exSat and used as gas fees for the Synchronizer's tasks on exSat, such as uploading BTC blocks.

For Validators

• A BTC account with at least 100 BTC (BTC test3 token on the Hayek testnet): To become a validator and participate in the exSat consensus, you need to stake at least 100 BTC. Therefore, you need to prepare a BTC network account with a balance of no less than 100 BTC and have the ability to sign a string with this account. During the validator registration process, you will need to prove your control over the BTC account by signing a specific string. If you encounter any issues obtaining BTC test3 BTC tokens, please contact the exSat team.

• An account for receiving XSAT rewards: This's an EVM address and is generally managed by financial officer. All rewards of the Validator will be distributed to this address, and financial officer can use this account to claim rewards. If you don't have an EVM address before, you can refer to this this guide to register one (using MetaMask). This address does not require any registration on exSat. You can directly use your existing EVM address from other networks, such as Ethereum.

• A BTC test3 network wallet with at least 0.01 BTC. During the Validator account registration process, you will be required to transfer 0.01 BTC to an BTC account owned by exSat. These funds will be bridged to exSat and used as gas fees for the Synchronizer's tasks on exSat, such as uploading BTC blocks.