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Cardano Protocol Parameter Updates

The Cardano Blockchain Protocol Parameters per epoch.

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EPOCH_NO
max_block_size
max_block_ex_mem
max_block_ex_steps
max_tx_ex_mem
max_tx_ex_steps
max_tx_size
max_val_size
max_bh_size
max_epoch
max_collateral_inputs
influence
coins_per_utxo_word
collateral_percent
key_deposit
min_fee_a
min_fee_b
min_pool_cost
min_utxo_value
monetary_expand_rate
nonce
optimal_pool_count
pool_deposit
price_mem
price_step
protocol_major
protocol_minor
treasury_growth_rate

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Cardano Blockchain Protocol Parameter Definitions

Column nameDescription
epoch_noThe first epoch for which these parameters are valid.
min_fee_aThe 'a' parameter to calculate the minimum transaction fee.
min_fee_bThe 'b' parameter to calculate the minimum transaction fee.
max_block_sizeThe maximum block size (in bytes).
max_tx_sizeThe maximum transaction size (in bytes).
max_bh_sizeThe maximum block header size (in bytes).
key_depositThe amount (in Lovelace) require for a deposit to register a StakeAddress.
pool_depositThe amount (in Lovelace) require for a deposit to register a stake pool.
max_epochThe maximum number of epochs in the future that a pool retirement is allowed to be scheduled for.
optimal_pool_countThe optimal number of stake pools.
influenceThe influence of the pledge on a stake pool's probability on minting a block.
monetary_expand_rateThe monetary expansion rate.
treasury_growth_rateThe treasury growth rate.
decentralisationThe decentralisation parameter (1 fully centralised, 0 fully decentralised).
entropyThe 32 byte string of extra random-ness to be added into the protocol's entropy pool.
protocol_majorThe protocol major number.
protocol_minorThe protocol minor number.
min_utxo_valueThe minimum value of a UTxO entry.
min_pool_costThe minimum pool cost.
nonceThe nonce value for this epoch.
coins_per_utxo_wordThe cost per UTxO word.
price_memThe per word cost of script memory usage.
price_stepThe cost of script execution step usage.
max_tx_ex_memThe maximum number of execution memory allowed to be used in a single transaction.
max_tx_ex_stepsThe maximum number of execution steps allowed to be used in a single transaction.
max_block_ex_memThe maximum number of execution memory allowed to be used in a single block.
max_block_ex_stepsThe maximum number of execution steps allowed to be used in a single block.
max_val_sizeThe maximum Val size.
collateral_percentThe percentage of the txfee which must be provided as collateral when including non-native scripts.
max_collateral_inputsThe maximum number of collateral inputs allowed in a transaction.
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