BlockDB/Swap-Prints-Ethereum-And-EVM-Cryptocurrency-Data

Sample Notice

This dataset contains a small sample of the full BlockDB Swap Prints dataset.
It is provided for evaluation, research, and interoperability testing only.

If you need full historical coverage, real-time streaming, or end-of-day (EOD) exports please contact us directly:

📧 support@blockdb.io
🌐 https://www.blockdb.io

Dataset Overview

Executed swap "prints": realized price from actual swap events. Each row represents a single swap execution with directional token pair (token_in → token_out), amounts, and computed execution price. No liquidity or quote data—only realized trades.

Chains and Coverage

ETH, BSC, Base, Arbitrum, Unichain, Avalanche, Polygon, Celo, Linea, Optimism (others on request). Full history from chain genesis; reorg-aware real-time ingestion and updates.

Schema

List of columns exactly as delivered:

•	id BIGINT – Unique swap print identifier (primary key)
•	pool_uid BYTEA – Unique pool identifier (FK to liquidity_pools)
•	exchange_id INTEGER – Exchange/DEX identifier
•	type_id INTEGER – Pool type identifier (FK to liquidity_pool_types)
•	block_number BIGINT – Block when the swap was executed
•	block_time TIMESTAMPTZ – UTC timestamp when the block was mined
•	tx_index INTEGER – Transaction index within the block
•	log_index INTEGER – Log index within the block
•	token_in BYTEA – 20-byte address of input token
•	token_out BYTEA – 20-byte address of output token
•	amount_in NUMERIC(78,0) – Raw input amount (lossless)
•	amount_out NUMERIC(78,0) – Raw output amount (lossless)
•	exec_price NUMERIC(78,18) – Realized execution price (token_out per 1 token_in, decimals-adjusted)
•	exec_price_exact TEXT – Lossless exact price representation
•	_tracing_id BYTEA – Tracing ID of this swap print record
•	_genesis_tracing_ids BYTEA[] – Tracing IDs of the genesis records leading to this record
•	_parent_tracing_ids BYTEA[] – Tracing IDs of the parent records leading to this record
•	_created_at TIMESTAMPTZ – Record creation timestamp
•	_updated_at TIMESTAMPTZ – Record last update timestamp

Notes

•	Direction: The "print" is token_in → token_out; exec_price = amount_out / amount_in (decimals-adjusted).
•	Unique constraint: (pool_uid, token_in, token_out, block_number, tx_index, log_index) guarantees one print per swap log per direction.
•	exec_price may be NULL for extreme values; exec_price_exact is always populated.
•	Indexes on (pool_uid, block_number DESC, tx_index DESC, log_index DESC), (block_number, tx_index, log_index), block_time, and (token_in, token_out, block_time DESC) support fast lookups.

Lineage

Each swap print record includes deterministic _tracing_id, _genesis_tracing_ids, and _parent_tracing_ids, providing:

•	Provenance tracking from raw logs to decoded swap events
•	Reproducible analytics and signal extraction
•	Cross-system consistency checks (RPC vs. indexers vs. internal warehouses)

Common Use Cases

•	Building trade-level analytics and execution quality metrics
•	TWAP/VWAP calculation from realized trades
•	MEV detection and sandwich attack analysis
•	Arbitrage opportunity identification across pools

Quality

•	Verifiable lineage: deterministic cryptographic hashes per row
•	Reorg-aware ingestion: continuity and consistency across forks
•	Complete historical coverage: from chain genesis to present