Update README.md

README.md

@@ -16,73 +16,12 @@ tags:
 pretty_name: BlockDB ERC-721 Tokens - Sample
 size_categories:
 - 10M<n<100M
+dataset_info:
+  homepage: https://docs.blockdb.io/data-catalog/evm/entities/erc721-tokens
 ---
 
-![BlockDB Banner](./assets/banner.jpg)
+*Small evaluation sample.*
 
-## Sample Notice
+**`0202`** · `blockdb_evm.b0202_erc721_tokens_v1` - Catalog of ERC-721 NFT collection contracts (EIP-721).
 
-This dataset contains **a small sample** of the full BlockDB ERC-721 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-721 (NFT) token contracts discovered on-chain. Each row represents a unique ERC-721 token collection with its metadata (name, symbol, base token URI) 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-721 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-721 token collection
-	•	symbol TEXT – Symbol/ticker of the ERC-721 token
-	•	base_token_uri TEXT – Base URI for token metadata, if any
-	•	_tracing_id BYTEA – Tracing ID of this ERC-721 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 collection.
-	•	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 NFT collection registries and metadata catalogs
-	•	NFT market analytics and collection tracking
-	•	NFT discovery and new collection detection
-	•	Wallet portfolio tracking for NFT holdings
-
-
-## Quality
-	•	Verifiable lineage: deterministic cryptographic hashes per row
-	•	Reorg-aware ingestion: continuity and consistency across forks
-	•	Complete historical coverage: from chain genesis to present
+**🌐 [BlockDB docs — schema, API, WebSocket & signup](https://docs.blockdb.io/data-catalog/evm/entities/erc721-tokens)**