{
  "title": "Top ten attributed groups: public endpoint pilot",
  "selection": {
    "requested": 2016,
    "sample": 2016,
    "updatedAt": "2026-09-16T15:55:21.769Z",
    "tip": 972445,
    "source": "Public explorer: mempool.guide",
    "ranking": "Largest attributed block counts in a frozen 2,016-block snapshot; unknown blocks remain in the share denominator. Attribution groups are not independently verified operators."
  },
  "pools": [
    {
      "rank": 1,
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      "blocks": 749,
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      "host": "us1.alphapool.tech",
      "port": 5555,
      "source": "https://knots.alphapool.tech/",
      "scope": "One published US public SV1 endpoint",
      "runs": [
        {
          "round": 1,
          "startedAt": "2026-09-16T16:01:16.424Z",
          "jobs": [
            {
              "observedAt": "2026-09-16T16:01:16.539Z",
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              "timeBytes": 8,
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              "format": "blake2b-commitment",
              "payoutVisibility": "Unavailable: job exposes a short work commitment, not the payout transaction"
            },
            {
              "observedAt": "2026-09-16T16:01:30.046Z",
              "jobDigest": "328412430d874f9974cae091349d7eceab65f30dc6ac9060503dd5b8d86ffdd2",
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              "payoutVisibility": "Unavailable: job exposes a short work commitment, not the payout transaction"
            },
            {
              "observedAt": "2026-09-16T16:01:42.318Z",
              "jobDigest": "2e9da65bdb91c797b3316c87fe0f51038134b070fde484a17cf2e687f49de225",
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              "payoutVisibility": "Unavailable: job exposes a short work commitment, not the payout transaction"
            },
            {
              "observedAt": "2026-09-16T16:01:52.037Z",
              "jobDigest": "7bd6730d9d9d975446194d0db09d4d7abd71ace1b0be7217d2d831bc7c884cd2",
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              "payoutVisibility": "Unavailable: job exposes a short work commitment, not the payout transaction"
            },
            {
              "observedAt": "2026-09-16T16:02:00.631Z",
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          ],
          "authorized": true,
          "subscribed": true,
          "status": "jobs-observed",
          "finishedAt": "2026-09-16T16:02:06.472Z"
        },
        {
          "round": 2,
          "startedAt": "2026-09-16T16:02:36.570Z",
          "jobs": [
            {
              "observedAt": "2026-09-16T16:02:36.664Z",
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              "payoutVisibility": "Unavailable: job exposes a short work commitment, not the payout transaction"
            },
            {
              "observedAt": "2026-09-16T16:02:38.123Z",
              "jobDigest": "e372127ddb8eabe3addaed64ce3b91442532afd8a2c205b1f46040586373aef7",
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            },
            {
              "observedAt": "2026-09-16T16:02:48.321Z",
              "jobDigest": "743e525611969391c87251d1647e3b07cddea1a1f872ab9e3e2954b06c6002b7",
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              "payoutVisibility": "Unavailable: job exposes a short work commitment, not the payout transaction"
            },
            {
              "observedAt": "2026-09-16T16:02:58.533Z",
              "jobDigest": "cf2581edc6eaa2cfee38f1eb48bd9b1ffe1b6fffdb97968ce5fa44540002b5e4",
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            },
            {
              "observedAt": "2026-09-16T16:03:08.788Z",
              "jobDigest": "f27c5391731c61d84f7a97e6c5e4a65e518cf3a7b34305bbbd5004b634e4cbc4",
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            },
            {
              "observedAt": "2026-09-16T16:03:18.983Z",
              "jobDigest": "c1e162f32205249facb9c86b14856fe701e542feac1ba4c8d8b80df490e8b201",
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              "payoutVisibility": "Unavailable: job exposes a short work commitment, not the payout transaction"
            }
          ],
          "authorized": true,
          "subscribed": true,
          "status": "jobs-observed",
          "finishedAt": "2026-09-16T16:03:26.583Z"
        }
      ]
    },
    {
      "rank": 2,
      "id": "explorer:lazarus",
      "name": "Lazarus",
      "blocks": 311,
      "share": 0.15426587301587302,
      "host": "stratum.awokenlazarus.xyz",
      "port": 23334,
      "source": "https://pool.awokenlazarus.xyz/stratum-protocol.md",
      "scope": "Public pool-operated gateway; separate own-gateway DATUM path not tested",
      "runs": [
        {
          "round": 1,
          "startedAt": "2026-09-16T16:01:16.427Z",
          "jobs": [
            {
              "observedAt": "2026-09-16T16:01:20.716Z",
              "jobDigest": "dfba0c75cf28f6a90667f237f6ff4584154412f2019663313602f4f8076feac8",
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              "payoutVisibility": "Unavailable: job exposes a short work commitment, not the payout transaction"
            },
            {
              "observedAt": "2026-09-16T16:01:39.076Z",
              "jobDigest": "0eb89bd3dbedf109ea50d1d15de5c4f4eb05085af1af301de4df7765cc1ace36",
              "previousField": "0000000000005f5342c2ebc418620ab77a8638a336df38493e940928c808abf9",
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              "payoutVisibility": "Unavailable: job exposes a short work commitment, not the payout transaction"
            },
            {
              "observedAt": "2026-09-16T16:01:59.384Z",
              "jobDigest": "7f89fbbfe6d70accf802009ddf888e5581912a411bf515822576455beaefb93f",
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            }
          ],
          "authorized": true,
          "subscribed": true,
          "status": "jobs-observed",
          "finishedAt": "2026-09-16T16:02:06.473Z"
        },
        {
          "round": 2,
          "startedAt": "2026-09-16T16:02:36.571Z",
          "jobs": [
            {
              "observedAt": "2026-09-16T16:02:36.771Z",
              "jobDigest": "cdcfc22ee43e09d3f6a00e78489ef1eec0140dfa0b1abfd30ddd63fd4933d0d4",
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              "payoutVisibility": "Unavailable: job exposes a short work commitment, not the payout transaction"
            },
            {
              "observedAt": "2026-09-16T16:02:40.596Z",
              "jobDigest": "dc5dc919a90dba4d3d73ac31bcc28a41c9f130697ae584525bc77c1e9092e7f8",
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            },
            {
              "observedAt": "2026-09-16T16:03:00.924Z",
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            {
              "observedAt": "2026-09-16T16:03:21.249Z",
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          ],
          "authorized": true,
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          "status": "jobs-observed",
          "finishedAt": "2026-09-16T16:03:26.583Z"
        }
      ]
    },
    {
      "rank": 3,
      "id": "explorer:bitcoinxor",
      "name": "Bitcoin Xor",
      "blocks": 288,
      "share": 0.14285714285714285,
      "host": "datum.xorpool.com",
      "port": 23335,
      "source": "https://xorpool.com/",
      "scope": "Public pool-operated gateway; separate own-gateway DATUM path not tested",
      "runs": [
        {
          "round": 1,
          "startedAt": "2026-09-16T16:01:16.429Z",
          "jobs": [
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            },
            {
              "observedAt": "2026-09-16T16:01:51.975Z",
              "jobDigest": "b0be5357da4bcdfa6c69b6f164836c7a0d163c80db9ab55dc12f3fe0e71be12e",
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          ],
          "authorized": true,
          "subscribed": true,
          "status": "jobs-observed",
          "finishedAt": "2026-09-16T16:02:06.502Z"
        },
        {
          "round": 2,
          "startedAt": "2026-09-16T16:02:36.571Z",
          "jobs": [
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              "observedAt": "2026-09-16T16:02:36.770Z",
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            },
            {
              "observedAt": "2026-09-16T16:03:11.997Z",
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          ],
          "authorized": true,
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          "status": "jobs-observed",
          "finishedAt": "2026-09-16T16:03:26.584Z"
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    {
      "rank": 4,
      "id": "explorer:ratum",
      "name": "RATUM",
      "blocks": 198,
      "share": 0.09821428571428571,
      "source": "https://pool.iohzrd.tech/connect",
      "scope": "Not probed: RATUM is an explorer attribution label. A current, unambiguous public SV1 endpoint and its relationship to this label need operator confirmation; gateway availability statements conflict with prior operator material.",
      "runs": []
    },
    {
      "rank": 5,
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      "share": 0.06845238095238096,
      "host": "mine.convoy.xyz",
      "port": 3333,
      "source": "https://convoy.xyz/getstarted",
      "scope": "Published SV1 failover endpoint; primary own-gateway DATUM path not tested",
      "runs": [
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          "startedAt": "2026-09-16T16:01:16.429Z",
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            {
              "observedAt": "2026-09-16T16:01:47.575Z",
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          "status": "jobs-observed",
          "finishedAt": "2026-09-16T16:02:06.549Z"
        },
        {
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            {
              "observedAt": "2026-09-16T16:03:09.616Z",
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          ],
          "authorized": true,
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    {
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      "share": 0.046130952380952384,
      "host": "de.b2pool.io",
      "port": 3333,
      "source": "https://b2pool.io/start",
      "scope": "One published regional ASIC SV1 endpoint; DATUM and SV2 paths not tested",
      "runs": [
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          "startedAt": "2026-09-16T16:01:16.429Z",
          "jobs": [
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            {
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            {
              "observedAt": "2026-09-16T16:02:01.464Z",
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          ],
          "authorized": true,
          "subscribed": true,
          "status": "jobs-observed",
          "finishedAt": "2026-09-16T16:02:06.518Z"
        },
        {
          "round": 2,
          "startedAt": "2026-09-16T16:02:36.571Z",
          "jobs": [
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              "observedAt": "2026-09-16T16:02:36.860Z",
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            },
            {
              "observedAt": "2026-09-16T16:02:41.408Z",
              "jobDigest": "52c0c1aa24e93050fb4fc668d3975694521fa7b362ae493a8e2070f07247a350",
              "previousField": "0000000000005f5342c2ebc418620ab77a8638a336df38493e940928c808abf9",
              "part1Bytes": 39,
              "part2Bytes": 0,
              "timeBytes": 8,
              "branchCount": 0,
              "format": "blake2b-commitment",
              "payoutVisibility": "Unavailable: job exposes a short work commitment, not the payout transaction"
            },
            {
              "observedAt": "2026-09-16T16:03:01.446Z",
              "jobDigest": "c3884bb105c34a60dc3dd69a669a6782f9867954492f4be84980774e1c952a20",
              "previousField": "0000000000005f5342c2ebc418620ab77a8638a336df38493e940928c808abf9",
              "part1Bytes": 39,
              "part2Bytes": 0,
              "timeBytes": 8,
              "branchCount": 0,
              "format": "blake2b-commitment",
              "payoutVisibility": "Unavailable: job exposes a short work commitment, not the payout transaction"
            },
            {
              "observedAt": "2026-09-16T16:03:21.578Z",
              "jobDigest": "c908e0d911d6902b72a868e7d0c95d455ea1a87a47fcb822553e157621be80a6",
              "previousField": "0000000000005f5342c2ebc418620ab77a8638a336df38493e940928c808abf9",
              "part1Bytes": 39,
              "part2Bytes": 0,
              "timeBytes": 8,
              "branchCount": 0,
              "format": "blake2b-commitment",
              "payoutVisibility": "Unavailable: job exposes a short work commitment, not the payout transaction"
            }
          ],
          "authorized": true,
          "subscribed": true,
          "status": "jobs-observed",
          "finishedAt": "2026-09-16T16:03:26.585Z"
        }
      ]
    },
    {
      "rank": 7,
      "id": "explorer:riptide",
      "name": "RIPTIDE",
      "blocks": 30,
      "share": 0.01488095238095238,
      "host": "sv1.riptide.maveth.ca",
      "port": 23337,
      "source": "https://riptide.maveth.ca/",
      "scope": "Public SV1 endpoint; separate own-gateway DATUM path not tested",
      "runs": [
        {
          "round": 1,
          "startedAt": "2026-09-16T16:01:16.429Z",
          "jobs": [
            {
              "observedAt": "2026-09-16T16:01:16.705Z",
              "jobDigest": "7978bd47f2690315d59143156b8e2cbe0550ed4fd788aa531a79f9653640c72e",
              "previousField": "0000000000005f5342c2ebc418620ab77a8638a336df38493e940928c808abf9",
              "part1Bytes": 39,
              "part2Bytes": 0,
              "timeBytes": 8,
              "branchCount": 0,
              "format": "blake2b-commitment",
              "payoutVisibility": "Unavailable: job exposes a short work commitment, not the payout transaction"
            }
          ],
          "authorized": true,
          "subscribed": true,
          "status": "jobs-observed",
          "finishedAt": "2026-09-16T16:02:06.565Z"
        },
        {
          "round": 2,
          "startedAt": "2026-09-16T16:02:36.571Z",
          "jobs": [
            {
              "observedAt": "2026-09-16T16:02:36.729Z",
              "jobDigest": "a2ed8a5847f632c66cb87f27b0eca968cb3dcca58cec4150c144c9a2baa20460",
              "previousField": "0000000000005f5342c2ebc418620ab77a8638a336df38493e940928c808abf9",
              "part1Bytes": 39,
              "part2Bytes": 0,
              "timeBytes": 8,
              "branchCount": 0,
              "format": "blake2b-commitment",
              "payoutVisibility": "Unavailable: job exposes a short work commitment, not the payout transaction"
            },
            {
              "observedAt": "2026-09-16T16:02:48.297Z",
              "jobDigest": "ab51dab3e46147ee45151d143207fd6fdc8449c68d13d93fac5ce8d440e7be12",
              "previousField": "0000000000005f5342c2ebc418620ab77a8638a336df38493e940928c808abf9",
              "part1Bytes": 39,
              "part2Bytes": 0,
              "timeBytes": 8,
              "branchCount": 0,
              "format": "blake2b-commitment",
              "payoutVisibility": "Unavailable: job exposes a short work commitment, not the payout transaction"
            }
          ],
          "authorized": true,
          "subscribed": true,
          "status": "jobs-observed",
          "finishedAt": "2026-09-16T16:03:26.585Z"
        }
      ]
    },
    {
      "rank": 8,
      "id": "explorer:quainetwork",
      "name": "Quai Network",
      "blocks": 21,
      "share": 0.010416666666666666,
      "source": "https://mempool.guide/mining",
      "scope": "Not probed: no operator-confirmed XBT endpoint linked to this explorer label. The name alone is insufficient to select a service.",
      "runs": []
    },
    {
      "rank": 9,
      "id": "explorer:pyblock",
      "name": "PyBLOCK",
      "blocks": 20,
      "share": 0.00992063492063492,
      "host": "pool.pyblock.xyz",
      "port": 23110,
      "source": "https://github.com/GaltRanch/pyblock-miner",
      "scope": "Published LOTTO SV1 endpoint only; does not represent all PyBLOCK services or establish linkage to every attributed block",
      "runs": [
        {
          "round": 1,
          "startedAt": "2026-09-16T16:01:16.429Z",
          "jobs": [],
          "authorized": null,
          "subscribed": false,
          "status": "connection-error",
          "finishedAt": "2026-09-16T16:01:16.761Z"
        },
        {
          "round": 2,
          "startedAt": "2026-09-16T16:02:36.571Z",
          "jobs": [],
          "authorized": null,
          "subscribed": false,
          "status": "connection-error",
          "finishedAt": "2026-09-16T16:02:36.897Z"
        }
      ]
    },
    {
      "rank": 10,
      "id": "explorer:miningdutch",
      "name": "Mining-Dutch",
      "blocks": 18,
      "share": 0.008928571428571428,
      "source": "https://www.mining-dutch.nl/",
      "scope": "Not probed: a complete current XBT host/port and permitted worker format were not established from the public page inspected. No account was created or credentials used.",
      "runs": []
    }
  ],
  "startedAt": "2026-09-16T16:01:16.423Z",
  "probeVersion": 1,
  "method": "Two bounded rounds, 30 seconds apart after completion; up to 50 seconds per endpoint, one public IPv4 address per hostname. Subscribe and authorize only. No shares submitted. Latest 12 distinct sampled jobs retained per run. No port scanning or DATUM handshake.",
  "matches": [],
  "updatedAt": "2026-09-16T16:03:26.585Z",
  "finishedAt": "2026-09-16T16:03:26.587Z"
}