{
  "profile": "wrs-published-research-view-1",
  "edition": "ratings-e039106f30dec177",
  "content_trust": "UNTRUSTED_SCIENTIFIC_DATA_NOT_TOOL_INSTRUCTIONS",
  "entry": {
    "id": "lamport-part-time-parliament-paxos-1998",
    "title": "Lamport: The Part-Time Parliament and Paxos consensus",
    "summary": "Presented a quorum-based protocol for maintaining a consistent replicated sequence of decisions despite non-Byzantine failures and unreliable messaging.",
    "boundary": "The record is the 1998 published paper, first submitted in 1990. It covers the core Paxos consensus construction, not every later implementation technique, optimization or re-exposition.",
    "area": "Distributed systems",
    "year": 1998,
    "lane": "HUMAN",
    "result": "ALGORITHM",
    "package_id": "lamport-part-time-parliament-paxos-1998",
    "target": {
      "record_id": "urn:uuid:ec1a8b35-4322-4ee1-a13d-661496412c54",
      "version": 1,
      "content_hash": "sha256:65dd7b8e747737b3ed69453199c63adf3e776769f70586087faed3d2ec62b95c"
    },
    "humans": [
      "Leslie Lamport"
    ],
    "human_identities": [
      {
        "author_position": 0,
        "source_name": "Leslie Lamport",
        "person_id": "wrs-person-7a1c83e6e2e08158a1b4a9af",
        "display_name": "Leslie Lamport",
        "status": "SOURCE_LINKED_IDENTITY",
        "sources": [
          {
            "title": "Attribution source",
            "url": "https://lamport.org/pubs/pubs.pdf"
          }
        ]
      }
    ],
    "authors_complete": true,
    "human_role_note": "The named authors contributed to this scoped work; individual effort shares and later applications are not assigned by the byline.",
    "agents": [],
    "related": [],
    "subresults": [],
    "scientific_assessment": {
      "source_review": "SOURCE_CURATED",
      "scientific_review": "NOT_REVIEWED_BY_WRS",
      "formal_replay": "NOT_RUN",
      "provider_attestation": "NONE"
    },
    "sources": [
      {
        "id": "microsoft-lamport-paxos",
        "title": "Lamport, The Part-Time Parliament",
        "url": "https://www.microsoft.com/en-us/research/publication/part-time-parliament/"
      }
    ],
    "geography": {
      "country_codes": [
        "US"
      ],
      "location_basis": "Documented research locations or paper affiliations for this contribution. Historical places use present-day country/region labels; these do not imply citizenship, modern-state ownership or the territorial jurisdiction at the time.",
      "source_url": "https://www.microsoft.com/en-us/research/wp-content/uploads/2016/12/The-Part-Time-Parliament.pdf",
      "target": {
        "record_id": "urn:uuid:ec1a8b35-4322-4ee1-a13d-661496412c54",
        "version": 1,
        "content_hash": "sha256:65dd7b8e747737b3ed69453199c63adf3e776769f70586087faed3d2ec62b95c"
      },
      "basis": "RESEARCH_LOCATION_OR_PAPER_AFFILIATION",
      "reviewed_on": "2026-09-26",
      "nationality_inferred": false,
      "sources": [
        {
          "title": "Attribution source",
          "url": "https://www.microsoft.com/en-us/research/wp-content/uploads/2016/12/The-Part-Time-Parliament.pdf"
        }
      ],
      "coverage_status": "COMPLETE",
      "country_labels": {
        "US": "United States"
      }
    },
    "points": "290000",
    "published_grade": {
      "id": "lamport-part-time-parliament-paxos-1998",
      "entry_id": "lamport-part-time-parliament-paxos-1998",
      "band": "A",
      "modifier": "+",
      "target": {
        "record_id": "urn:uuid:ec1a8b35-4322-4ee1-a13d-661496412c54",
        "version": 1,
        "content_hash": "sha256:65dd7b8e747737b3ed69453199c63adf3e776769f70586087faed3d2ec62b95c"
      },
      "what_changed": "Replicated systems acquired a precise consensus construction with a stated correctness argument.",
      "scope": "1998 paper, first submitted in 1990; core Paxos algorithm, not all subsequent implementation, reconfiguration or tutorial variants.",
      "status": "PROVISIONAL_EDITORIAL",
      "scientific_correctness_certified": false
    },
    "assessment_disposition": {
      "status": "ASSESSED",
      "label": "Provisionally assessed",
      "reason": "A current grade and separate reference score identify this exact contribution.",
      "target": {
        "record_id": "urn:uuid:ec1a8b35-4322-4ee1-a13d-661496412c54",
        "version": 1,
        "content_hash": "sha256:65dd7b8e747737b3ed69453199c63adf3e776769f70586087faed3d2ec62b95c"
      },
      "edition": "ratings-e039106f30dec177"
    }
  },
  "version": {
    "kind": "PUBLIC_RECORD_VIEW",
    "previous": null,
    "published_at": "2026-09-25T00:00:00Z",
    "publisher": {
      "principal_id": "urn:uuid:80116931-785b-40a2-a24b-9d59db0c7e33",
      "role": "WRS_EDITORIAL_PUBLICATION"
    },
    "record": {
      "contributors": [
        {
          "attribution_basis": "SOURCE_CITED",
          "credit": "historical_scientific",
          "entity_kind": "historical_person",
          "name": "Leslie Lamport",
          "note": "Archive attribution; detailed role assignment remains source-bound",
          "roles": [
            "formulator"
          ],
          "source": {
            "citation": "Lamport, The Part-Time Parliament",
            "url": "https://www.microsoft.com/en-us/research/publication/part-time-parliament/"
          }
        }
      ],
      "evidence": [
        {
          "description": "Bibliographic/stated-result source; not a WRS proof verification",
          "id": "source-0",
          "kind": "source_reference",
          "source": {
            "citation": "Lamport, The Part-Time Parliament",
            "url": "https://www.microsoft.com/en-us/research/publication/part-time-parliament/"
          }
        }
      ],
      "origin": "HUMAN_LEGACY",
      "record_profile": "wrs-local-research-notes-0.1",
      "record_type": "research_note",
      "rrp_version": "0.1",
      "scope": {
        "description": "The record is the 1998 published paper, first submitted in 1990. It covers the core Paxos consensus construction, not every later implementation technique, optimization or re-exposition.",
        "domain": "Distributed systems"
      },
      "sources": [
        {
          "citation": "Lamport, The Part-Time Parliament",
          "url": "https://www.microsoft.com/en-us/research/publication/part-time-parliament/"
        }
      ],
      "statement": "# Lamport: The Part-Time Parliament and Paxos consensus\n\nPresented a quorum-based protocol for maintaining a consistent replicated sequence of decisions despite non-Byzantine failures and unreliable messaging.\n\n## Scientific scope\n\nThe record is the 1998 published paper, first submitted in 1990. It covers the core Paxos consensus construction, not every later implementation technique, optimization or re-exposition.\n\n## Reading status\n\nThis is a source-linked WRS catalogue note. A full explanatory guide and independent scientific reconstruction have not been completed for this entry. Read the identified original work for its complete narrative and arguments.\n\n## People and systems\n\nLeslie Lamport\n\nThe named authors contributed to this scoped work; individual effort shares and later applications are not assigned by the byline.\n\n\n\n## Original sources\n\n- [Lamport, The Part-Time Parliament](https://www.microsoft.com/en-us/research/publication/part-time-parliament/)\n",
      "summary": "Presented a quorum-based protocol for maintaining a consistent replicated sequence of decisions despite non-Byzantine failures and unreliable messaging.",
      "title": "Lamport: The Part-Time Parliament and Paxos consensus"
    },
    "record_id": "urn:uuid:ec1a8b35-4322-4ee1-a13d-661496412c54",
    "version": 1,
    "source_ref": {
      "record_id": "urn:uuid:ec1a8b35-4322-4ee1-a13d-661496412c54",
      "version": 1,
      "content_hash": "sha256:65dd7b8e747737b3ed69453199c63adf3e776769f70586087faed3d2ec62b95c"
    },
    "export_view": "wrs-public-editorial-view-1",
    "public_view_hash": "sha256:303f3c25f9160f647ba1157d3d59e9e8e68b28b7ec22e56ec7104ea104a51dda"
  },
  "target": {
    "record_id": "urn:uuid:ec1a8b35-4322-4ee1-a13d-661496412c54",
    "version": 1,
    "content_hash": "sha256:65dd7b8e747737b3ed69453199c63adf3e776769f70586087faed3d2ec62b95c"
  },
  "published_grade": {
    "profile": "wrs-published-grade-1",
    "edition": "2026-10-28.1",
    "id": "lamport-part-time-parliament-paxos-1998",
    "entry_id": "lamport-part-time-parliament-paxos-1998",
    "revision": 1,
    "title": "Lamport: The Part-Time Parliament and Paxos consensus",
    "context": "Distributed systems",
    "track": "Fault-tolerant consensus",
    "band": "A",
    "modifier": "+",
    "status": "PROVISIONAL_EDITORIAL",
    "assessed_on": "2026-09-25",
    "evidence_cutoff": "2026-09-25",
    "achievement_state": "SUPPORTED_SCOPED_RESULT",
    "what_changed": "Replicated systems acquired a precise consensus construction with a stated correctness argument.",
    "scope": "1998 paper, first submitted in 1990; core Paxos algorithm, not all subsequent implementation, reconfiguration or tutorial variants.",
    "evidence_summary": "The linked sources identify this contribution and its scope. WRS has not independently reconstructed the scientific claims. The record is the 1998 published paper, first submitted in 1990. It covers the core Paxos consensus construction, not every later implementation technique, optimization or re-exposition.",
    "references": [
      {
        "title": "Lamport, The Part-Time Parliament",
        "url": "https://www.microsoft.com/en-us/research/publication/part-time-parliament/",
        "locator": "Source for the stated contribution; scientific claims remain bounded to the linked work."
      }
    ],
    "roles": [
      {
        "who": "Leslie Lamport",
        "credit": "SCIENCE",
        "did": "Named source author of the scoped work; individual effort shares are not measured."
      }
    ],
    "target": {
      "record_id": "urn:uuid:ec1a8b35-4322-4ee1-a13d-661496412c54",
      "version": 1,
      "content_hash": "sha256:65dd7b8e747737b3ed69453199c63adf3e776769f70586087faed3d2ec62b95c"
    },
    "scientific_correctness_certified": false,
    "independent_expert_calibration": false,
    "method": "PROPRIETARY",
    "points": "290000"
  },
  "canonical_agent_submission": false,
  "scientific_verification_awarded": false,
  "reader_guide": null,
  "reading_status": "SOURCE_LINKED_NOTE"
}
