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specification/protocol/network/messages/getdata.md
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2020-02-06 12:37:37 -05:00

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<div class="cwikmeta">{
"title":"GETDATA",
"related":["/protocol","/protocol/p2p/inv"]
}</div>
Requests information (generally previously announced via an INV) from a peer.
A GETDATA request is formatted as a vector of INV data:
| compact int | 4 bytes | 32 bytes | ... | additional objects |
|---------------|-----------|------------|--|------|
| [vector](/protocol/p2p/vector) size N elements of | element 1 type | element 1 hash | ... | element N type and hash
### Type
The type of the desired object. See [INV](/protocol/p2p/inv) for specific values
### Hash
The [hash identifier](glossary/hash__identifier) of the desired object.