Pith Number

pith:QXJ46YIJ

pith:2018:QXJ46YIJWDBE5FRFBAQER2YNIX

not attested not anchored not stored refs pending

A note on simultaneous representation problem for interval and circular-arc graphs

Jan Bok, Nikola Jedli\v{c}kov\'a

arxiv:1811.04062 v2 · 2018-11-09 · 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{QXJ46YIJWDBE5FRFBAQER2YNIX}

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	2026-05-17T23:59:44.562335Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

85d3cf6109b0c24e9625082048eb0d45dcffbe80b6653040fc614f0026d4d2f3

Aliases

arxiv: 1811.04062 · arxiv_version: 1811.04062v2 · doi: 10.48550/arxiv.1811.04062 · pith_short_12: QXJ46YIJWDBE · pith_short_16: QXJ46YIJWDBE5FRF · pith_short_8: QXJ46YIJ

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/QXJ46YIJWDBE5FRFBAQER2YNIX \
  | 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: 85d3cf6109b0c24e9625082048eb0d45dcffbe80b6653040fc614f0026d4d2f3

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "43d9212a0be4154b31e42a6f27ab828e1d7397ed8820ca5b88fde7c8bab1312d",
    "cross_cats_sorted": [
      "math.CO"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.DM",
    "submitted_at": "2018-11-09T18:43:56Z",
    "title_canon_sha256": "82e0246c8db018ed0c349656a3df5c885f9ba4e53a41556fb37c86d35b7cc392"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1811.04062",
    "kind": "arxiv",
    "version": 2
  }
}