Pith Number

pith:DFZ237E4

pith:2015:DFZ237E4ZFD3ABJM6JLPZENTOE

not attested not anchored not stored refs pending

Quadratic-Time Hardness of LCS and other Sequence Similarity Measures

Amir Abboud, Arturs Backurs, Virginia Vassilevska Williams

arxiv:1501.07053 v2 · 2015-01-28 · cs.CC · cs.DS

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{DFZ237E4ZFD3ABJM6JLPZENTOE}

Prints a linked badge after your title and injects PDF metadata. Compiles on arXiv. Learn more · Embed verified badge

Record completeness

1 Bitcoin timestamp

2 Internet Archive

3 Author claim open · sign in to claim

4 Citations open

5 Replications open

✓ Portable graph bundle live · download bundle · merged state

The bundle contains the canonical record plus signed events. A mirror can host it anywhere and recompute the same current state with the deterministic merge algorithm.

Cited by

1 paper in Pith

The anti-lexicographic SUS-anchor: a near-optimal k=1 sampling scheme

Receipt and verification

First computed	2026-05-18T02:28:20.169825Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

1973adfc9cc947b0052cf256fc91b37124b7166ae18f7ba3367a4bec6801fa86

Aliases

arxiv: 1501.07053 · arxiv_version: 1501.07053v2 · doi: 10.48550/arxiv.1501.07053 · pith_short_12: DFZ237E4ZFD3 · pith_short_16: DFZ237E4ZFD3ABJM · pith_short_8: DFZ237E4

Agent API

Resolver JSON Graph JSON Events JSON Schema Signing key

Verify this Pith Number yourself

curl -sH 'Accept: application/ld+json' https://pith.science/pith/DFZ237E4ZFD3ABJM6JLPZENTOE \
  | jq -c '.canonical_record' \
  | python3 -c "import sys,json,hashlib; b=json.dumps(json.loads(sys.stdin.read()), sort_keys=True, separators=(',',':'), ensure_ascii=False).encode(); print(hashlib.sha256(b).hexdigest())"
# expect: 1973adfc9cc947b0052cf256fc91b37124b7166ae18f7ba3367a4bec6801fa86

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "6d49ed5af841d6413c129054b052fff136c6f4b4f22e0c6b38229a40a9341d3a",
    "cross_cats_sorted": [
      "cs.DS"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CC",
    "submitted_at": "2015-01-28T10:12:58Z",
    "title_canon_sha256": "3a0386b2b942688a6ed40c69057d347d8e8e7f09ad38d364fc6203d62b86e081"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1501.07053",
    "kind": "arxiv",
    "version": 2
  }
}