Pith Number

pith:ODAHQAER

pith:2014:ODAHQAERSISGEHLGOHIDV6BGJH

not attested not anchored not stored refs pending

On circular-arc graphs having a model with no three arcs covering the circle

Luciano N. Grippo, Mart\'in D. Safe

arxiv:1402.2641 v1 · 2014-02-11 · 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{ODAHQAERSISGEHLGOHIDV6BGJH}

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	2026-05-18T02:59:18.998045Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

70c07800919224621d6671d03af82649d2743ef052ee219755c326ee4ffd0337

Aliases

arxiv: 1402.2641 · arxiv_version: 1402.2641v1 · doi: 10.48550/arxiv.1402.2641 · pith_short_12: ODAHQAERSISG · pith_short_16: ODAHQAERSISGEHLG · pith_short_8: ODAHQAER

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/ODAHQAERSISGEHLGOHIDV6BGJH \
  | 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: 70c07800919224621d6671d03af82649d2743ef052ee219755c326ee4ffd0337

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "ec3e2cfef18a0ab72cf0227936b17aeec75c439d98f9c1056e20f0b46012f496",
    "cross_cats_sorted": [
      "math.CO"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.DM",
    "submitted_at": "2014-02-11T20:46:22Z",
    "title_canon_sha256": "77fa0b63abb426f79c3961a629cce628ffe12c2f3bbba4cef1359f3b8785b6fd"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1402.2641",
    "kind": "arxiv",
    "version": 1
  }
}