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README.md

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+---
+license: cc-by-nc-4.0
+tags:
+- ethereum
+- evm
+- blockchain
+- cryptocurrency
+- crypto
+- onchain-data
+- tabular
+- timeseries
+- datasets
+- pandas
+- polars
+- duckdb
+pretty_name: BlockDB Liquidity Pools Reserves - Sample
+size_categories:
+- 10M<n<100M
+---
+
+## Sample Notice
+
+This dataset contains **a small sample** of the full BlockDB Liquidity Pools Reserves 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
+Time-series of pool reserve/state snapshots across all AMM types. Each row represents a snapshot of pool state at a specific on-chain event, including reserves for constant-product pools and tick/bin data for concentrated liquidity pools (Uniswap v3/v4, Algebra, TraderJoe bins, etc.).
+
+
+## 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 snapshot 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 this state was observed
+	•	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
+	•	reserves NUMERIC(78,0)[] – Array of current reserves per token for even-style pools (raw units)
+	•	current_tick INTEGER – Current tick for concentrated-liquidity pools (e.g., Uniswap v3)
+	•	current_sqrt_price NUMERIC(49,0) – Q64.96 sqrt price as integer; decode via (value / 2^96)^2 for mid-price
+	•	current_bin INTEGER – Current bin id for bin-based AMMs (e.g., TraderJoe v2)
+	•	_tracing_id BYTEA – Tracing ID of this reserves 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
+	•	At least one of reserves, current_tick, or current_bin is always populated.
+	•	Unique constraint: (pool_uid, block_number, tx_index, log_index) guarantees one snapshot per pool per event.
+	•	For Q64.96 sqrt price: mid_price = (current_sqrt_price / 2^96)^2, then adjust for token decimals.
+	•	Indexes on (pool_uid, block_number DESC, tx_index DESC, log_index DESC), (block_number, tx_index, log_index), and block_time support fast lookups.
+
+
+## Lineage
+Each reserves record includes deterministic _tracing_id, _genesis_tracing_ids, and _parent_tracing_ids, providing:
+
+	•	Provenance tracking from raw logs to decoded reserves snapshots
+	•	Reproducible analytics and signal extraction
+	•	Cross-system consistency checks (RPC vs. indexers vs. internal warehouses)
+
+
+## Common Use Cases
+	•	Reconstructing historical pool states for backtesting
+	•	TVL (Total Value Locked) calculations
+	•	Liquidity depth analysis and slippage estimation
+	•	Price impact modeling for concentrated liquidity 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

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