Cronos example queries

This page provides Blockchain Analytics query examples for Cronos.

See the BigQuery documentation for instructions on using BigQuery.

Show all USDT transfers

This query shows transfers of the USDT token on Cronos since genesis.

In the Google Cloud console, go to the BigQuery page.

The following query is loaded into the Editor field:

-- UDF for easier string manipulation.
CREATE TEMP FUNCTION ParseSubStr(hexStr STRING, startIndex INT64, endIndex INT64)
RETURNS STRING
LANGUAGE js
AS r"""
  if (hexStr.length < 1) {
    return hexStr;
  }
  return hexStr.substring(startIndex, endIndex);
""";

-- UDF to convert hex to decimal.
CREATE TEMP FUNCTION HexToDecimal(hexStr STRING)
RETURNS INT64
LANGUAGE js
AS r"""
  return parseInt(hexStr, 16);
""";

SELECT
  t.transaction_hash,
  t.from_address AS from_address,
  CONCAT("0x", ParseSubStr(l.topics[OFFSET(2)], 26, LENGTH(l.topics[OFFSET(2)]))) AS to_address,
  (HexToDecimal(l.data) / 1000000) AS usdt_transfer_amount
FROM
  `bigquery-public-data.goog_blockchain_cronos_mainnet_us.transactions` AS t
INNER JOIN
  `bigquery-public-data.goog_blockchain_cronos_mainnet_us.logs` AS l
ON
  l.transaction_hash = t.transaction_hash
WHERE
  t.to_address = LOWER("0x66e428c3f67a68878562e79a0234c1f83c208770") -- USDT
AND
  ARRAY_LENGTH(l.topics) > 0
AND
  -- Transfer(address indexed src, address indexed dst, uint wad)
  l.topics[OFFSET(0)] = LOWER("0xddf252ad1be2c89b69c2b068fc378daa952ba7f163c4a11628f55a4df523b3ef")
;

The following shows an example result:

Transaction Hash	From Address	To Address	USDT Transfer Amount
0x6688fbfff00aee60811c150e3f5fcd08a6c9c50b9e028ff4bed3138918cd6b16	0x792f3570cf9a552952b7f80703d1b4e773397e33	0xe6e2d743e057024e033fde3e16077de3302e0cd1	1500.0
0x84f0b00a5ddc882134fab138097a582500097eb7051fed499c403368ab622b31	0xf6d7dd84382cd532eb68cc2711509058936e890d	0x03363e4bbc35f01bec95a33b3b391894f4ca7244	1001.08402
0xc353e823bfa7c582956154194bccfabef6a4f7e71efb9211ae64b9ccc1b21cc7	0x9e199307660706e0ed1ed4d56684aad67ca97bde	0x43d615be1714913fc1850e5a77cd01fa9b75e90c	5000.0
0x98321418e4fdc29d84a2d49bfc2d6ce1b4d0b37b93b84051aea75b19fb2a6e44	0x340a27ea8874177c894c365183d2283b5fcaa697	0xa0b5564550345414b619821c8dcbf7e0a20a195a	7.0
0x095a3a3453b27d003ac299fbdbcff53f78c32e748f79064e8a74bc6e20fe8e48	0x3a956433edae040b41f1767b24009d08bf73fd6e	0x8995909dc0960fc9c75b6031d683124a4016825b	30000.0

Wrapped Cronos activity

This query shows the wallets with the most interactions with Wrapped Cronos in the last 30 days.