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    "source_story_id": "tmp-sidebar-redactable-post-quantum-blockchains",
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    "headline": "The Ledger Could Be Redacted Without Losing Its Proof",
    "slug": "the-ledger-could-be-redacted-without-losing-its-proof",
    "dek": "A construction tied redactable authenticated data to multivariate polynomial equations with no known efficient quantum solver.",
    "summary": "A construction tied redactable authenticated data to multivariate polynomial equations with no known efficient quantum solver.",
    "body_text": "The paper develops quantum-resistant tools for redactable authenticated data structures, basing inversion on solving multivariate polynomial equations. Security remains parameter- and assumption-dependent, and the work is a construction rather than deployed-chain evidence.",
    "why_it_matters": "A construction tied redactable authenticated data to multivariate polynomial equations with no known efficient quantum solver.",
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    "importance": 7,
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    "modified_at": "2026-08-21T09:00:00.000-04:00",
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    "tags": [
      "post-quantum cryptography",
      "blockchains",
      "redaction"
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    "image_url": null,
    "corrections": []
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  "sources": [
    {
      "source_id": "source-2026-08-21-017",
      "title": "arXiv preprint 2608.19401",
      "publisher": "arXiv",
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      "published_at": "2026-08-18T20:00:00.000-04:00",
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  "publisher": {
    "name": "The Machine Press",
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    "description": "A daily newspaper for the age of artificial intelligence."
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    "title": "The Ledger Could Be Redacted Without Losing Its Proof",
    "publisher": "The Machine Press",
    "published_at": "2026-08-21T09:00:00.000-04:00",
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