| | --- |
| | license: cc-by-nc-4.0 |
| | tags: |
| | - ethereum |
| | - evm |
| | - blockchain |
| | - cryptocurrency |
| | - crypto |
| | - onchain-data |
| | - tabular |
| | - timeseries |
| | - datasets |
| | - pandas |
| | - polars |
| | - duckdb |
| | pretty_name: BlockDB ERC-20 Tokens - Sample |
| | size_categories: |
| | - 10M<n<100M |
| | --- |
| | |
| |  |
| |
|
| | ## Sample Notice |
| |
|
| | This dataset contains **a small sample** of the full BlockDB ERC-20 Tokens 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 |
| | Catalog of ERC-20 token contracts discovered on-chain. Each row represents a unique ERC-20 token with its metadata (name, symbol, decimals) and provenance information indicating where the token was first recognized or derived from on-chain activity. |
| |
|
| | Every token record includes deterministic tracing IDs that link the record to its genesis event and upstream sources, enabling full provenance tracking for downstream analytics. |
| |
|
| |
|
| | ## 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: |
| |
|
| | • contract_address BYTEA – 20-byte address of the ERC-20 token contract (primary key) |
| | • block_number BIGINT – Block of the log attributed as the genesis/recognition point |
| | • 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 |
| | • name TEXT – Name of the ERC-20 token |
| | • symbol TEXT – Symbol/ticker of the ERC-20 token |
| | • decimals SMALLINT – Number of decimal places used by the ERC-20 token |
| | • _tracing_id BYTEA – Tracing ID of this ERC-20 token record |
| | • _genesis_tracing_ids BYTEA[] – Tracing IDs of the genesis records leading to this token record |
| | • _parent_tracing_ids BYTEA[] – Tracing IDs of the parent records leading to this token record |
| | • _created_at TIMESTAMPTZ – Record creation timestamp |
| | • _updated_at TIMESTAMPTZ – Record last update timestamp |
| | |
| |
|
| | ### Notes |
| | • Primary key: contract_address guarantees uniqueness per token. |
| | • Indexes on (block_number, tx_index, log_index), block_number, and block_time support fast lookups. |
| | • Binary values can be rendered as hex via encode(column, 'hex') in SQL for display or downstream joins. |
| | |
| |
|
| | ## Lineage |
| | Each token record includes deterministic _tracing_id, _genesis_tracing_ids, and _parent_tracing_ids, providing: |
| |
|
| | • Provenance tracking from raw logs to decoded token metadata |
| | • Reproducible analytics and signal extraction |
| | • Cross-system consistency checks (RPC vs. indexers vs. internal warehouses) |
| | |
| |
|
| | ## Common Use Cases |
| | • Building token registries and metadata catalogs |
| | • Enriching swap, liquidity, and DeFi analytics with token information |
| | • Token discovery and new listing detection |
| | • Portfolio tracking and wallet analytics |
| | |
| |
|
| | ## Quality |
| | • Verifiable lineage: deterministic cryptographic hashes per row |
| | • Reorg-aware ingestion: continuity and consistency across forks |
| | • Complete historical coverage: from chain genesis to present |
| | |
