Pith Number

pith:CXIUSDRF

pith:2014:CXIUSDRFHV6TKBX2PGAHMHJ3FL

not attested not anchored not stored refs pending

Minimal Obstructions for Partial Representations of Interval Graphs

Maria Saumell, Pavel Klav\'ik

arxiv:1406.6228 v3 · 2014-06-24 · 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{CXIUSDRFHV6TKBX2PGAHMHJ3FL}

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	2026-05-18T01:20:21.245179Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

15d1490e253d7d3506fa7980761d3b2acb6c202200206f15834afbd104f51165

Aliases

arxiv: 1406.6228 · arxiv_version: 1406.6228v3 · doi: 10.48550/arxiv.1406.6228 · pith_short_12: CXIUSDRFHV6T · pith_short_16: CXIUSDRFHV6TKBX2 · pith_short_8: CXIUSDRF

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/CXIUSDRFHV6TKBX2PGAHMHJ3FL \
  | 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: 15d1490e253d7d3506fa7980761d3b2acb6c202200206f15834afbd104f51165

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "440c917db2ee6a45ea63dc8036e3103aa63f7ee6469f880d630eb60a8d84b47f",
    "cross_cats_sorted": [
      "cs.DM"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.CO",
    "submitted_at": "2014-06-24T13:15:06Z",
    "title_canon_sha256": "17d9e93b2cf4b7006c6386020c61bbd702ecf5b5162dae9a847f583531d6b829"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1406.6228",
    "kind": "arxiv",
    "version": 3
  }
}