Pith Number

pith:DUM5JBDB

pith:2019:DUM5JBDB6OXHF6FT62JHC7PUSU

not attested not anchored not stored refs pending

Simultaneous Representation of Proper and Unit Interval Graphs

Darren Strash, Ignaz Rutter, Michael Vollmer, Peter Stumpf

arxiv:1908.08882 v1 · 2019-08-23 · cs.DS · cs.DM · math.CO

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{DUM5JBDB6OXHF6FT62JHC7PUSU}

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	2026-07-04T23:59:24.854562Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

1d19d48461f3ae72f8b3f692717df4950565c3f520c0d6f3477d42f675c9dfd5

Aliases

arxiv: 1908.08882 · arxiv_version: 1908.08882v1 · doi: 10.48550/arxiv.1908.08882 · pith_short_12: DUM5JBDB6OXH · pith_short_16: DUM5JBDB6OXHF6FT · pith_short_8: DUM5JBDB

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/DUM5JBDB6OXHF6FT62JHC7PUSU \
  | 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: 1d19d48461f3ae72f8b3f692717df4950565c3f520c0d6f3477d42f675c9dfd5

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "e2196758b9e1f8506ed4fe8e8cc81ff7785b7bee33c73ec5b6c23af6af8c5383",
    "cross_cats_sorted": [
      "cs.DM",
      "math.CO"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.DS",
    "submitted_at": "2019-08-23T15:52:30Z",
    "title_canon_sha256": "3b2bc83d3a612e81f85533ce8c2021973d096436aa1710cf1af2c39c3ace0f3f"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1908.08882",
    "kind": "arxiv",
    "version": 1
  }
}