Its complicated by the fact that originally, as I understand it, all nodes were miners. Now, miners and nodes are discrete groups; as far as a security profile goes nodes are the arbiters of truth, they verify that new blocks are created and added to the chain in a way that follows the rules. The block reward (subsidy+fees) is a profit motive for miners to create new blocks, competing against each other to hit the difficulty target first, this is a service being paid for, their interest and investment in bitcoin beyond their profit motive is irrelevant.
The miners can create any number of invalid blocks, they can push any fork, they can produce valid but empty blocks or exclude transactions to censor individuals or the network. But they can't force the network, something you can host in your home, to accept the invalid blocks, they can't reimage your raspberry pi to accept a fork, they can't remove your transaction from the mempool. They can only temporarily censor transactions at cost to themselves, making a continuous attack expensive, and nodes could probably rug you in a variety of ways if you did this.
Nodes provide the security.
npub1aw…nyrgs
2023-04-09 00:03:25
in reply to nevent1q…q92j
Author Public Key
npub1awp3sny5rt2m54czzqfmem9m0wp505g9nrhm4xv0qgpvffj90exqvnyrgsPublished at
2023-04-09 00:03:25Event JSON
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"pubkey": "eb83184c941ad5ba57021013bcecbb7b8347d10598efba998f0202c4a6457e4c",
"created_at": 1680998605,
"kind": 1,
"tags": [
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[
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"content": "Its complicated by the fact that originally, as I understand it, all nodes were miners. Now, miners and nodes are discrete groups; as far as a security profile goes nodes are the arbiters of truth, they verify that new blocks are created and added to the chain in a way that follows the rules. The block reward (subsidy+fees) is a profit motive for miners to create new blocks, competing against each other to hit the difficulty target first, this is a service being paid for, their interest and investment in bitcoin beyond their profit motive is irrelevant. \n\nThe miners can create any number of invalid blocks, they can push any fork, they can produce valid but empty blocks or exclude transactions to censor individuals or the network. But they can't force the network, something you can host in your home, to accept the invalid blocks, they can't reimage your raspberry pi to accept a fork, they can't remove your transaction from the mempool. They can only temporarily censor transactions at cost to themselves, making a continuous attack expensive, and nodes could probably rug you in a variety of ways if you did this.\n\nNodes provide the security.",
"sig": "0c4ee2d73a5402b5c0e66eb175efdf99585c44b2c8aeaa787dc8c98ee71669305a052fa94b1b6e4dd3aa1ce3c81fde1d7ded715325c65a1700befa0c2fdf34d2"
}