Pith Number

pith:2UIIC5EB

pith:2018:2UIIC5EBNKW5QIAH4HXMM4MBPF

not attested not anchored not stored refs pending

An $O(1)$-Approximation Algorithm for Dynamic Weighted Vertex Cover with Soft Capacity

Chung-Shou Liao, Hao-Ting Wei, Kunihiko Sadakane, Paul Horn, Wing-Kai Hon

arxiv:1802.05623 v2 · 2018-02-15 · 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{2UIIC5EBNKW5QIAH4HXMM4MBPF}

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	2026-05-18T00:22:54.408205Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

d5108174816aadd82007e1eec67181794f0d604d033d3ed0b1cb5cd58821092c

Aliases

arxiv: 1802.05623 · arxiv_version: 1802.05623v2 · doi: 10.48550/arxiv.1802.05623 · pith_short_12: 2UIIC5EBNKW5 · pith_short_16: 2UIIC5EBNKW5QIAH · pith_short_8: 2UIIC5EB

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/2UIIC5EBNKW5QIAH4HXMM4MBPF \
  | 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: d5108174816aadd82007e1eec67181794f0d604d033d3ed0b1cb5cd58821092c

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "65b554d3ad2102337a26f8143a077a5fe7ecf84b0bd51a2d007e481efc71ae5e",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.DS",
    "submitted_at": "2018-02-15T15:36:45Z",
    "title_canon_sha256": "4a52516469355563692487eb0a3be5b81687721a4df2ad253d03369c0fda7490"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1802.05623",
    "kind": "arxiv",
    "version": 2
  }
}