Pith Number

pith:FGB534C5

pith:2016:FGB534C5AL6WOU2LVLCB23SH7I

not attested not anchored not stored refs pending

Matroid Online Bipartite Matching and Vertex Cover

Sam Chiu-wai Wong, Yajun Wang

arxiv:1606.07863 v1 · 2016-06-25 · 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{FGB534C5AL6WOU2LVLCB23SH7I}

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	2026-05-18T01:11:54.258944Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

2983ddf05d02fd67534baac41d6e47fa21b0ebb561ae447e2781cc07e8b2edc9

Aliases

arxiv: 1606.07863 · arxiv_version: 1606.07863v1 · doi: 10.48550/arxiv.1606.07863 · pith_short_12: FGB534C5AL6W · pith_short_16: FGB534C5AL6WOU2L · pith_short_8: FGB534C5

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/FGB534C5AL6WOU2LVLCB23SH7I \
  | 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: 2983ddf05d02fd67534baac41d6e47fa21b0ebb561ae447e2781cc07e8b2edc9

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "712c3ff0fd563b7a33270845b9277c6c5ae755a8e08131aa2f2f88d7b450fee0",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.DS",
    "submitted_at": "2016-06-25T01:21:35Z",
    "title_canon_sha256": "cd5cea05cff3983637df2c745ca3a229b73994822ba999bbbbd1092555faf3b6"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1606.07863",
    "kind": "arxiv",
    "version": 1
  }
}