Pith Number

pith:DQWTNCUX

pith:2020:DQWTNCUX6HXYWO7DLHZKYIFWQU

not attested not anchored not stored refs pending

Vertex Sparsification for Edge Connectivity

Bundit Laekhanukit, Daniel Vaz, Mark Sellke, Parinya Chalermsook, Richard Peng, Syamantak Das, Yang P. Liu, Yunbum Kook

arxiv:2007.07862 v1 · 2020-07-15 · 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{DQWTNCUX6HXYWO7DLHZKYIFWQU}

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	2026-07-05T01:19:32.864208Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

1c2d368a97f1ef8b3be359f2ac20b68504fb2dab2a6ce546d6bb9d155d53e574

Aliases

arxiv: 2007.07862 · arxiv_version: 2007.07862v1 · doi: 10.48550/arxiv.2007.07862 · pith_short_12: DQWTNCUX6HXY · pith_short_16: DQWTNCUX6HXYWO7D · pith_short_8: DQWTNCUX

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/DQWTNCUX6HXYWO7DLHZKYIFWQU \
  | 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: 1c2d368a97f1ef8b3be359f2ac20b68504fb2dab2a6ce546d6bb9d155d53e574

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "1af7c0e61cda1055648f7167a1b7078d2270f3a4502db62e48a10582b66415e2",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.DS",
    "submitted_at": "2020-07-15T17:31:44Z",
    "title_canon_sha256": "9b8a01f336a4c6def7673d3faef4a78ca61fb075bf6afd397f3fc73d1a9b861d"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2007.07862",
    "kind": "arxiv",
    "version": 1
  }
}