Pith Number

pith:Z7FT2ORZ

pith:2010:Z7FT2ORZA4N3Y46PLEAVVELSYS

not attested not anchored not stored refs pending

Faster Algorithms for Semi-Matching Problems

Bundit Laekhanukit, Danupon Nanongkai, Jittat Fakcharoenphol

arxiv:1004.3363 v5 · 2010-04-20 · 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{Z7FT2ORZA4N3Y46PLEAVVELSYS}

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.

Receipt and verification

First computed	2026-05-18T03:53:42.658817Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

cfcb3d3a39071bbc73cf59015a9172c4838cc86c9912c30e583722634be57e87

Aliases

arxiv: 1004.3363 · arxiv_version: 1004.3363v5 · doi: 10.48550/arxiv.1004.3363 · pith_short_12: Z7FT2ORZA4N3 · pith_short_16: Z7FT2ORZA4N3Y46P · pith_short_8: Z7FT2ORZ

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/Z7FT2ORZA4N3Y46PLEAVVELSYS \
  | 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: cfcb3d3a39071bbc73cf59015a9172c4838cc86c9912c30e583722634be57e87

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "e7145225b164d8924a540f1e4f4f33bac7ccd6fad44bd5a1600b1df3229a6455",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.DS",
    "submitted_at": "2010-04-20T07:06:38Z",
    "title_canon_sha256": "58fa0ce90beeb6656f29bb132c044fa192079359a9743c3c06a2d115ef8d3234"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1004.3363",
    "kind": "arxiv",
    "version": 5
  }
}