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On this page
  • A
  • Address
  • Asset Ledger
  • B
  • Block
  • L
  • Ledger change
  • T
  • Transaction

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  1. Network Data

Network Data Glossary

Introduction to on-chain concepts

A

Address

An address is the alphanumeric identifier that represents a unique account within a cryptoasset network. It’s usually a random string of characters, but it can also contain human readable words, or be composed of a domain address.

Asset Ledger

Account based blockchains

For account based blockchains, the asset ledger is its mapping of all account states.

The state of each account records:

  • Its balance in native units

  • The date of creation of the account (or time of first appearance of the creation is implicit)

  • The date of the last ledger change this account was a source of (used for active supply)

UTXO Chains

For UTXO based chain, the asset’s ledger is the UTXO set (unspent transaction output set). It’s the set of outputs that are unspent to that moment in the ledger’s history.

The information relevant for each output is:

  • its value in native units

  • its time of creation

  • its owner address (can be not present if there’s no address for this output)

OP_RETURN outputs are not present in the asset’s ledger as they are provably unspendable.

ERC-20 assets

For ERC-20 assets, we aim to replicate exactly the contract’s balances so that our supply figure matches exactly the contract’s total supply. Otherwise, the fields are identical to other account based chains.

B

Block

L

Ledger change

A ledger change is any operation that can happen on an asset’s ledger. Another synonym could be operation. They can be initiated by users or occur automatically as part of the protocol itself.

Ledger changes usually have at least:

  • one or more sources, no recipients

  • one or more recipients, no sources

  • both sources and recipients

Sources and recipients of ledger changes can be addresses, the protocol itself, or non specified.

Ledger Change

Initiator/Source

Beneficiary/Destination

Transfer

Users

Users

Transaction fees

Users

Miner/Staker/Protocol/No destination (burn)

Founders reward

Protocol

Founders

Community reward

Protocol

Users

Mining/Staking reward

Protocol

Users

At-launch issuance

Protocol

Users

Post-launch issuance

Founders/Protocol

Founders/Users

Post-launch burns

Founders/Users/Protocol

No destination/Burn Address

Transfers

Transfers are movements of native units between distinct addresses. Their value must be greater than 0 (otherwise, no movement of native units occurred).

For UTXO chains, transfers occur when new outputs are created with a value greater than 0 and that can be provably unlocked, or spent (e.g. non OP_RETURN). We exclude outputs created in coinbase transactions from this definition as they are mining rewards.

Transaction fees

Transaction fees are what ledger users pay to the entities mining/validating their transactions. In most assets, transaction fees are paid to the miner/validator who included the transaction in a block. However, in some assets like XRP, transaction fees are burned.

Founders reward

Some assets, like ZCash, have a protocol rule that, up until a specific block height, newly created native units are credited to addresses controlled by the protocol’s founders/stewards. This differs from block validation rewards as founders do not engage in transaction validation..

Community reward

Some assets, like Decred, have a protocol rule that allows a portion of newly created native units to be credited to arbitrary accounts based on the outcome of a governance process. Those funds usually serve to finance initiatives proposals that were voted by the community(marketing, etc..). This differs from a founders reward as the beneficiaries are not necessarily founders of the protocol, and the proceeds are used within the scope of the proposed community initiative

Mining/Staking reward

Most protocol’s consensus mechanisms include some inflation process whose beneficiaries are miners or stakers.

At-launch issuance

An at-launch issuance is an inflation event that takes place prior, or during, the genesis block. It is relevant for assets that had a pre-sale, or a pre-mine, whereby the ledger did not start from n blank slate, as some accounts already credited with an amount of native units.

Post-launch issuance

A post-launch issuance is an inflation event that takes place after the genesis block. It only includes punctual, non-programmatic issuance, such as seigniorage, further token sales, inflationary air-drops etc..

Post-launch burns

A post-launch burn is a deflationary event whereby an entity is allowed to permanently destroy native units, often through its control of network-wide consensus.

T

Transaction

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Last updated 6 months ago

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A block usually consists of two parts; a header, and a separate data field where are listed. The header includes metadata about the block, such as its timestamp, previous block hash, version, etc... The transactions field may include an index of transactions that took place, or it may be empty.

A transaction represents a bundle of intended actions to alter ownership structures within the ledger. A transaction can fail or succeed depending on whether it is compatible with a protocol’s consensus rules. A transaction’s execution may result in subsequent .

transactions
ledger changes