Encyclopedia

This Archive aims to provide the glossary terms and docs you need to understand Bitcoin and start building Bitcoin-based applications.

T

Target

The target is the threshold below which a block header hash must be in order...

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Testnet

A global testing environment in which developers can obtain and spend satoshis that have no...

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Thin client

A method for verifying if particular transactions are included in a block without downloading the...

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Token

A token is a programmable digital asset with its own codebase that resides on an...

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Transaction fee

The amount remaining when the value of all outputs in a transaction are subtracted from...

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Transaction malleability

The ability of someone to change (mutate) unconfirmed transactions without making them invalid, which changes...

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Transaction mutability

The ability of someone to change (mutate) unconfirmed transactions without making them invalid, which changes...

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Transaction version number

A version number prefixed to transactions to allow upgrading.

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Txid

An identifier used to uniquely identify a particular transaction; specifically, the sha256d hash of the...

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TxIn

An input in a transaction which contains three fields: an outpoint, a signature script, and...

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TxOut

An output in a transaction which contains two fields: a value field for transferring zero...

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Documentation