Legacy V1 Events

When the LegacyV1 filter is enabled, records are reshaped into the Oura v1 event schema. This page is the catalog of those events — each is a variant of an enum at the code level. Every event carries its own fields plus a Context describing where in the chain it occurred.

For the structured (non-legacy) data model, see the Data Dictionary.

RollBack Event

Data on chain rollback (the result of the local node switching to the consensus chain).

Name	DataType	Description
block_slot	u64	Slot of the rolled back block.
block_hash	Option<String>	Block hash. Hash of the rolled back block.

Block Event

Data on an issued block.

Name	DataType	Description
body_size	usize	Size of the block.
issuer_vkey	String	Block issuer Public verification key.

Context

Name	DataType	Description
block_number	Option<u64>	Height of block from genesis.
block_hash	Option<String>	Block hash.
slot	Option<u64>	Current slot.
timestamp	Option<u64>	Timestamp.

Transaction Event

Data on a transaction.

Name	DataType	Description
fee	u64	Transaction fees in lovelace.
ttl	Option<u64>	Transaction time to live.
validity_interval_start	Option<u64>	Start of transaction validity interval
network_id	Option<u32>	Network ID.

Context

Name	DataType	Description
block_number	Option<u64>	Height of block from genesis.
block_hash	Option<String>	Block hash.
slot	Option<u64>	Current slot.
timestamp	Option<u64>	Timestamp.
tx_idx	Option<usize>	Transaction Index.
tx_hash	Option<String>	Transaction hash.

TxInput Event

Data on a transaction input.

Name	DataType	Description
tx_id	String	Transaction ID.
index	u64	Index of input in transaction inputs.

Context

Name	DataType	Description
block_number	Option<u64>	Height of block from genesis.
block_hash	Option<String>	Block hash.
slot	Option<u64>	Current slot.
timestamp	Option<u64>	Timestamp.
tx_idx	Option<usize>	Transaction Index.
tx_hash	Option<String>	Transaction hash.
input_idx	Option<usize>	Input ID.

TxOutput Event

Data on a transaction output (UTXO).

Name	DataType	Description
address	String	Address of UTXO.
amount	u64	Amount of lovelace in UTXO.

Context

Name	DataType	Description
block_number	Option<u64>	Height of block from genesis.
block_hash	Option<String>	Block hash.
slot	Option<u64>	Current slot.
timestamp	Option<u64>	Timestamp.
tx_idx	Option<usize>	Transaction Index.
tx_hash	Option<String>	Transaction hash.
output_idx	Option<usize>	Output ID.

OutputAsset Event

Data on a non-ADA asset in a UTXO.

Name	DataType	Description
policy	String	Minting policy of asset.
asset	String	Asset ID.
amount	u64	Amount of asset.

Context

Name	DataType	Description
block_number	Option<u64>	Height of block from genesis.
block_hash	Option<String>	Block hash.
slot	Option<u64>	Current slot.
timestamp	Option<u64>	Timestamp.
tx_idx	Option<usize>	Transaction Index.
tx_hash	Option<String>	Transaction hash.
output_idx	Option<usize>	Output ID.

Metadata Event

Name	DataType	Description
label	String	Metada label.
map_json (*)	Option<JsonValue>	Json map.
array_json (*)	Option<JsonValue>	Json array.
int_scalar (*)	Option<i128>	Number.
text_scalar (*)	Option<String>	Text.
bytes_hex (*)	Option<String>	Bytes.

(*) Only one of these options will be used.

Context

Name	DataType	Description
block_number	Option<u64>	Height of block from genesis.
block_hash	Option<String>	Block hash.
slot	Option<u64>	Current slot.
timestamp	Option<u64>	Timestamp.
tx_idx	Option<usize>	Transaction Index.
tx_hash	Option<String>	Transaction hash.

VkeyWitness Event

Name	DataType	Description
vkey_hex	String
signature_hex	String

Context

Name	DataType	Description
block_number	Option<u64>	Height of block from genesis.
block_hash	Option<String>	Block hash.
slot	Option<u64>	Current slot.
timestamp	Option<u64>	Timestamp.

NativeWitness Event

Name	DataType	Description
policy_id	String
script_json	JsonValue

Context

Name	DataType	Description
block_number	Option<u64>	Height of block from genesis.
block_hash	Option<String>	Block hash.
slot	Option<u64>	Current slot.
timestamp	Option<u64>	Timestamp.
tx_idx	Option<usize>	Transaction Index.
tx_hash	Option<String>	Transaction hash.

PlutusWitness Event

Name	DataType	Description
script_hash	String
script_hex	String

Context

Name	DataType	Description
block_number	Option<u64>	Height of block from genesis.
block_hash	Option<String>	Block hash.
slot	Option<u64>	Current slot.
timestamp	Option<u64>	Timestamp.
tx_idx	Option<usize>	Transaction Index.
tx_hash	Option<String>	Transaction hash.

PlutusRedeemer Event

Name	DataType	Description
purpose	String
ex_units_mem	u32
ex_units_steps	u64
input_idx	u32
plutus_data	JsonValue

Context

Name	DataType	Description
block_number	Option<u64>	Height of block from genesis.
block_hash	Option<String>	Block hash.
slot	Option<u64>	Current slot.
timestamp	Option<u64>	Timestamp.
tx_idx	Option<usize>	Transaction Index.
tx_hash	Option<String>	Transaction hash.

PlutusDatum Event

Name	DataType	Description
datum_hash	String
plutus_data	JsonValue

Context

Name	DataType	Description
block_number	Option<u64>	Height of block from genesis.
block_hash	Option<String>	Block hash.
slot	Option<u64>	Current slot.
timestamp	Option<u64>	Timestamp.
tx_idx	Option<usize>	Transaction Index.
tx_hash	Option<String>	Transaction hash.

CIP25Asset Event

Name	DataType	Description
version	String	version
policy	String
asset	String
name	Option<String>
image	Option<String>
media_type	Option<String>
description	Option<String>
raw_json	JsonValue

Context

Name	DataType	Description
block_number	Option<u64>	Height of block from genesis.
block_hash	Option<String>	Block hash.
slot	Option<u64>	Current slot.
timestamp	Option<u64>	Timestamp.
tx_idx	Option<usize>	Transaction Index.
tx_hash	Option<String>	Transaction hash.

CIP15Asset Event

Name	DataType	Description
voting_key	String
stake_pub	String
reward_address	String
nonce	i64
raw_json	JsonValue

Context

Name	DataType	Description
block_number	Option<u64>	Height of block from genesis.
block_hash	Option<String>	Block hash.
slot	Option<u64>	Current slot.
timestamp	Option<u64>	Timestamp.
tx_idx	Option<usize>	Transaction Index.
tx_hash	Option<String>	Transaction hash.

Mint Event

Data on the minting of a non-ADA asset.

Name	DataType	Description
policy	String	Minting policy of asset.
asset	String	Asset ID.
quantity	i64	Quantity of asset minted.

Context

Name	DataType	Description
block_number	Option<u64>	Height of block from genesis.
block_hash	Option<String>	Block hash.
slot	Option<u64>	Current slot.
timestamp	Option<u64>	Timestamp.
tx_idx	Option<usize>	Transaction Index.
tx_hash	Option<String>	Transaction hash.

Collateral Event

Data on collateral inputs.

Name	DataType	Description
tx_id	String	Transaction ID.
index	u64	Index of transaction input in inputs.

Context

Name	DataType	Description
block_number	Option<u64>	Height of block from genesis.
block_hash	Option<String>	Block hash.
slot	Option<u64>	Current slot.
timestamp	Option<u64>	Timestamp.
tx_idx	Option<usize>	Transaction Index.
tx_hash	Option<String>	Transaction hash.

NativeScript Event

Name	DataType	Description
policy_id	String
script	JsonValue

Context

Name	DataType	Description
block_number	Option<u64>	Height of block from genesis.
block_hash	Option<String>	Block hash.
slot	Option<u64>	Current slot.
timestamp	Option<u64>	Timestamp.

PlutusScript Event

Name	DataType	Description
hash	String	…
data	String	…

Context

Name	DataType	Description
block_number	Option<u64>	Height of block from genesis.
block_hash	Option<String>	Block hash.
slot	Option<u64>	Current slot.
timestamp	Option<u64>	Timestamp.
tx_idx	Option<usize>	Transaction Index.
tx_hash	Option<String>	Transaction hash.

StakeRegistration Event

Data on stake registration event.

Name	DataType	Description
credential	StakeCredential	Staking credentials.

Context

Name	DataType	Description
block_number	Option<u64>	Height of block from genesis.
block_hash	Option<String>	Block hash.
slot	Option<u64>	Current slot.
timestamp	Option<u64>	Timestamp.
tx_idx	Option<usize>	Transaction Index.
tx_hash	Option<String>	Transaction hash.
certificate_idx	Option<usize>

StakeDeregistration Event

Data on stake deregistration event.

Name	DataType	Description
credential	StakeCredential	Staking credentials.

Context

Name	DataType	Description
block_number	Option<u64>	Height of block from genesis.
block_hash	Option<String>	Block hash.
slot	Option<u64>	Current slot.
timestamp	Option<u64>	Timestamp.
tx_idx	Option<usize>	Transaction Index.
tx_hash	Option<String>	Transaction hash.
certificate_idx	Option<usize>

StakeDelegation Event

Data on stake delegation event.

Name	DataType	Description
credential	StakeCredential	Stake credentials.
pool_hash	String	Hash of stake pool ID.

Context

Name	DataType	Description
block_number	Option<u64>	Height of block from genesis.
block_hash	Option<String>	Block hash.
slot	Option<u64>	Current slot.
timestamp	Option<u64>	Timestamp.
tx_idx	Option<usize>	Transaction Index.
tx_hash	Option<String>	Transaction hash.
certificate_idx	Option<usize>

PoolRegistration Event

Data on the stake registration event.

Name	DataType	Description
operator	String	Stake pool operator ID.
vrf_keyhash	String	Kehash of node VRF operational key.
pledge	u64	Stake pool pledge (lovelace).
cost	u64	Operational costs per epoch (lovelace).
margin	f64	Operator margin.
reward_account	String	Account to receive stake pool rewards.
pool_owners	Vec<String>	Stake pool owners.
relays	Vec<String>	…
pool_metadata	Option<String>	…

Context

Name	DataType	Description
block_number	Option<u64>	Height of block from genesis.
block_hash	Option<String>	Block hash.
slot	Option<u64>	Current slot.
timestamp	Option<u64>	Timestamp.
tx_idx	Option<usize>	Transaction Index.
tx_hash	Option<String>	Transaction hash.
certificate_idx	Option<usize>

PoolRetirement Event

Data on stake pool retirement event.

Name	DataType	Description
pool	String	Pool ID.
epoch	u64	Current epoch.

Context

Name	DataType	Description
block_number	Option<u64>	Height of block from genesis.
block_hash	Option<String>	Block hash.
slot	Option<u64>	Current slot.
timestamp	Option<u64>	Timestamp.
tx_idx	Option<usize>	Transaction Index.
tx_hash	Option<String>	Transaction hash.
certificate_idx	Option<usize>

GenesisKeyDelegation Event

Data on genesis key delegation.

Context

Name	DataType	Description
block_number	Option<u64>	Height of block from genesis.
block_hash	Option<String>	Block hash.
slot	Option<u64>	Current slot.
timestamp	Option<u64>	Timestamp.
tx_idx	Option<usize>	Transaction Index.
tx_hash	Option<String>	Transaction hash.

MoveInstantaneousRewardsCert Event

Name	DataType	Description
from_reserves	bool	…
from_treasury	bool	…
to_stake_credentials	Option<BTreeMap<StakeCredential, i64>>	…
to_other_pot	Option<u64>	…

Context

Name	DataType	Description
block_number	Option<u64>	Height of block from genesis.
block_hash	Option<String>	Block hash.
slot	Option<u64>	Blockchain slot.
timestamp	Option<u64>	Timestamp.
tx_idx	Option<usize>	Transaction Index.
tx_hash	Option<String>	Transaction hash.