{
  "profile": "data-package",
  "name": "solo-block-record",
  "title": "The Solo Block Record",
  "description": "Every solo-mined Bitcoin block found by a small or home miner that could be verified on-chain, across all public solo pools. Each row links the block on mempool.space and the source that reported it. Where a winner never published a hashrate, the hashrate and the odds derived from it are empty rather than guessed. Published by SoloLuck.io at https://sololuck.io/legends and mirrored here daily from https://sololuck.io/api/legends/v1/.",
  "homepage": "https://sololuck.io/legends",
  "version": "2026-10-28",
  "keywords": [
    "bitcoin",
    "solo mining",
    "bitcoin mining",
    "blocks",
    "open data"
  ],
  "licenses": [
    {
      "name": "CC-BY-4.0",
      "path": "https://creativecommons.org/licenses/by/4.0/",
      "title": "Creative Commons Attribution 4.0 International"
    }
  ],
  "sources": [
    {
      "title": "SoloLuck.io, The Solo Block Record",
      "path": "https://sololuck.io/legends"
    }
  ],
  "contributors": [
    {
      "title": "SoloLuck.io",
      "path": "https://sololuck.io",
      "role": "publisher"
    }
  ],
  "resources": [
    {
      "name": "blocks",
      "path": "data/blocks.csv",
      "profile": "tabular-data-resource",
      "title": "Solo-mined blocks (CSV)",
      "description": "One row per block, newest first. UTF-8, comma-separated, with a header row. An empty cell means the value is unknown.",
      "format": "csv",
      "mediatype": "text/csv",
      "encoding": "utf-8",
      "bytes": 22155,
      "hash": "sha256:c00a81e0280fe34c0dfb2892b52ba12ca33ce892e62c6f8689a44e2b559272fd",
      "schema": {
        "fields": [
          {
            "name": "height",
            "type": "integer",
            "description": "Block height.",
            "constraints": {
              "required": true,
              "unique": true
            }
          },
          {
            "name": "date",
            "type": "date",
            "description": "Date the block was mined, UTC."
          },
          {
            "name": "pool",
            "type": "string",
            "description": "Where the block was found: the pool named by the coinbase or by the report, or 'untagged coinbase' when the coinbase carries no pool tag."
          },
          {
            "name": "hardware",
            "type": "string",
            "description": "The winner's hardware or hashrate as publicly reported, in words; 'hashrate not publicly reported' when the winner never published one."
          },
          {
            "name": "hashrate_hs",
            "type": "number",
            "description": "Hashrate in hashes per second, as published by the miner, the pool operator or the press at the time. Empty when never published."
          },
          {
            "name": "difficulty",
            "type": "number",
            "description": "Network difficulty at that height, as recorded: most rows are rounded to five or six significant figures, a few carry full precision."
          },
          {
            "name": "reward_btc",
            "type": "number",
            "description": "Total block reward in BTC: subsidy plus fees."
          },
          {
            "name": "reward_usd_reported",
            "type": "string",
            "description": "The reward's US dollar value as reported at the time, as free text (for example '≈ $300,000 then'). Empty when no report gave one."
          },
          {
            "name": "expected_seconds_per_block",
            "type": "number",
            "description": "Expected seconds for that hashrate to find a block at that difficulty: difficulty × 2^32 / hashrate_hs. Empty when the hashrate is unknown."
          },
          {
            "name": "chance_per_day",
            "type": "number",
            "description": "Probability of finding a block within one day at that hashrate and difficulty: 1 − e^(−86400 / expected_seconds_per_block). Empty when the hashrate is unknown."
          },
          {
            "name": "chance_per_day_one_in",
            "type": "integer",
            "description": "The same daily chance written as '1 in N': round(1 / chance_per_day). Empty when the hashrate is unknown."
          },
          {
            "name": "source_label",
            "type": "string",
            "description": "The source that reported the block."
          },
          {
            "name": "source_url",
            "type": "string",
            "format": "uri",
            "description": "Link to that source."
          },
          {
            "name": "block_url",
            "type": "string",
            "format": "uri",
            "description": "The block on mempool.space."
          },
          {
            "name": "story",
            "type": "string",
            "description": "A short account of the block, in English."
          },
          {
            "name": "note",
            "type": "string",
            "description": "Caveats, for example when an entry is inferred from the payout pattern rather than declared by the miner. Empty when there are none."
          }
        ],
        "primaryKey": "height",
        "missingValues": [
          ""
        ]
      }
    },
    {
      "name": "blocks-json",
      "path": "data/blocks.json",
      "profile": "data-resource",
      "title": "Solo-mined blocks with the dataset's own metadata (JSON)",
      "description": "The same rows as data/blocks.csv under 'blocks', plus the publisher's metadata: version, method, inclusion rule, licence, cite_as and the CSV's sha256.",
      "format": "json",
      "mediatype": "application/json",
      "encoding": "utf-8",
      "bytes": 38797,
      "hash": "sha256:17180e448eaf6935cffd6651e08b103825bdc1ea7fd81ff093a3768a124d9120"
    }
  ]
}