Pith Number

pith:6JSUA4DS

pith:2016:6JSUA4DSTWRJKF3GM4ULUZPQDB

not attested not anchored not stored refs pending

Characterizing graphs of maximum matching width at most 2

Geewon Suh, Jisu Jeong, Seongmin Ok

arxiv:1606.07157 v1 · 2016-06-23 · math.CO · cs.DM

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{6JSUA4DSTWRJKF3GM4ULUZPQDB}

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	2026-05-18T01:11:58.561613Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

f2654070729da29517666728ba65f018642f67940235bcace6c2c6aa44a316b1

Aliases

arxiv: 1606.07157 · arxiv_version: 1606.07157v1 · doi: 10.48550/arxiv.1606.07157 · pith_short_12: 6JSUA4DSTWRJ · pith_short_16: 6JSUA4DSTWRJKF3G · pith_short_8: 6JSUA4DS

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/6JSUA4DSTWRJKF3GM4ULUZPQDB \
  | 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: f2654070729da29517666728ba65f018642f67940235bcace6c2c6aa44a316b1

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "196a096ff86299489af3c4f9f74e22cc05f3e1ea37eddca3c8dc7e4508e7943f",
    "cross_cats_sorted": [
      "cs.DM"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.CO",
    "submitted_at": "2016-06-23T01:39:46Z",
    "title_canon_sha256": "b741f3cf19186b6dbdca79b478989c3b3733ccd2fdfde9ea4d7be2ff4365e747"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1606.07157",
    "kind": "arxiv",
    "version": 1
  }
}