cardano.transaction_metadata

Description of the transaction_metadata table on Dune

Table Description

Contains arbitrary metadata attached to Cardano transactions. Cardano allows transactions to include structured metadata indexed by integer keys (metadata labels). Common uses include NFT metadata (label 721), message signing, and protocol-specific data. Each row represents a single metadata key-value pair within a transaction.

Column Descriptions

Column	Description	Type
slot	The absolute slot number of the block containing this transaction.	bigint
block_number	The sequential number of the block containing this transaction.	bigint
block_time	The timestamp of the block containing this transaction.	timestamp
tx_hash	The hash of the transaction containing this metadata.	varchar
metadata_key	The integer label identifying the metadata entry (e.g., 721 for NFT metadata).	varchar
metadata_json	The JSON-encoded metadata value associated with the key.	varchar
_updated_at	The time when this record was last updated.	timestamp
_ingested_at	The time when this record was ingested into Dune.	timestamp

Table Sample