blockchain – Which is the smallest hash that has ever been hashed?

As an alternative choice to syncing a full Bitcoin node, there’s a BigQuery public dataset for Bitcoin (and a few different cryptocurrencies):

SELECT
    `quantity`,
    `hash`
FROM 
    `bigquery-public-data.crypto_bitcoin.blocks` 
ORDER BY  
    `hash`
LIMIT 
    10

Ends in JSON:

[
  {
    "number": "634842",
    "hash": "000000000000000000000003681c2df35533c9578fb6aace040b0dfe0d446413"
  },
  {
    "number": "585774",
    "hash": "000000000000000000000019b43763eb4519f4fe65eae9be90fe73117b89026d"
  },
  {
    "number": "675600",
    "hash": "00000000000000000000001a9bf725a1f7d019440a04f39706c083751b62974d"
  },
  {
    "number": "658771",
    "hash": "00000000000000000000001e9590a06c8452a3ce553834b2bab3daebf62f8b79"
  },
  {
    "number": "679468",
    "hash": "0000000000000000000000250fae6b97e3241d86c65fb5be489875c49032b25b"
  },
  {
    "number": "679848",
    "hash": "00000000000000000000002d142973ed07a220bf571360b70b90f4f0a1e739ce"
  },
  {
    "number": "625857",
    "hash": "000000000000000000000030f8cf8e0a76db53525aff8d56dcfdf4c74fc7878c"
  },
  {
    "number": "622050",
    "hash": "000000000000000000000031a10e42c80137b3c3ad3e15c5dfb4ea213c83e497"
  },
  {
    "number": "664602",
    "hash": "000000000000000000000032ad53b18dadb72800d883f8e1188ceaa566b9a222"
  },
  {
    "number": "696345",
    "hash": "00000000000000000000003c5c9269d93153a4eb8fabef76318d849a2ec2b29e"
  }
]