There is no facility to directly do this in the Bitcoin protocol, nor is there ever likely to be. The Bitcoin network is not a free file server, nodes provide data to other nodes for facilitating the operation of the Bitcoin system-- and normal operation has no need for a lookup by height.
You should run your own node and then you can trivially query it over the json rpc (or rest in Bitcoin v0.10).
Topic: How do you download a specific block number ? (Read 963 times)
Without a local copy your only option is to use getdata since I doubt that an online block explorer would let you download 10000 blocks.
How do you access the raw protocol? I'm not familiar with this.
Bitcore, A pure JavaScript Bitcoin library.
Code:
var bitcore = require('bitcore');
var Messages = bitcore.transport.Messages;
var Peer = bitcore.transport.Peer;
var Block = bitcore.Block;
var peer = new Peer('xxx.xxx.xxx.xxx');
peer.on('block',function(message){
console.log(message.block.toObject());
);
var v = [];
v.push({
type: 2,
hash: new Buffer(...)
});
var message = new Messages.GetData(v);
peer.sendMessage(message);
I don't know any tool that does that out of the box - I think you will need to write it yourself. Sorry
Without a local copy your only option is to use getdata since I doubt that an online block explorer would let you download 10000 blocks.
How do you access the raw protocol? I'm not familiar with this.
I tried getblock "hash", but it seems like I can only get block that I already have in my disk, I want to get this function working without downloading the whole blockchain. Is there any way to connect to some kind of server and use this method on this server ?
TL;DR, I want to compile my own bootstrap.dat file that contain only blocks from a specific block number for example only blocks between 130000 and 140000, all this without having the blockchain in my hard drive.
Without a local copy your only option is to use getdata since I doubt that an online block explorer would let you download 10000 blocks. TL;DR, I want to compile my own bootstrap.dat file that contain only blocks from a specific block number for example only blocks between 130000 and 140000, all this without having the blockchain in my hard drive.
Yes, by their hashes using getdata in the raw protocol or getblock in the client.
I tried getblock "hash", but it seems like I can only get block that I already have in my disk, I want to get this function working without downloading the whole blockchain. Is there any way to connect to some kind of server and use this method on this server ?
TL;DR, I want to compile my own bootstrap.dat file that contain only blocks from a specific block number for example only blocks between 130000 and 140000, all this without having the blockchain in my hard drive.
You can download the details of a specific block in human-readable form from a block explorer, such as blockchain.info or blockr.io etc.
Yes, by their hashes using getdata in the raw protocol or getblock in the client.
I want to know if there is a way to download specific block numbers without download the whole blockchain.
Edit: I know that I can use bitcoin client with getblock "hash" function, but this require that the block with that "hash" to be in the hard drive, which I don't. So I'm looking for a similar function of getblock "hash" which doesn't require block to be in the hard drive, but instead it download it from some server or other peers.
Edit: I know that I can use bitcoin client with getblock "hash" function, but this require that the block with that "hash" to be in the hard drive, which I don't. So I'm looking for a similar function of getblock "hash" which doesn't require block to be in the hard drive, but instead it download it from some server or other peers.
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