Pith Number

pith:HREO7MB6

pith:2015:HREO7MB6H3JI4H2S3RBLUE6IIX

not attested not anchored not stored refs pending

Contact Representations of Sparse Planar Graphs

Andre Schulz, David Eppstein, Md. Jawaherul Alam, Michael Kaufmann, Sergey Pupyrev, Stephen G. Kobourov, Torsten Ueckerdt

arxiv:1501.00318 v1 · 2015-01-01 · cs.CG · 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{HREO7MB6H3JI4H2S3RBLUE6IIX}

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	2026-05-18T02:30:09.590863Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

3c48efb03e3ed28e1f52dc42ba13c845e4846009d9e30b54398318f4083c127c

Aliases

arxiv: 1501.00318 · arxiv_version: 1501.00318v1 · doi: 10.48550/arxiv.1501.00318 · pith_short_12: HREO7MB6H3JI · pith_short_16: HREO7MB6H3JI4H2S · pith_short_8: HREO7MB6

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/HREO7MB6H3JI4H2S3RBLUE6IIX \
  | 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: 3c48efb03e3ed28e1f52dc42ba13c845e4846009d9e30b54398318f4083c127c

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "d825f9781637967ac1ec45d7033d7b9209ed904ab09252da2e7220dfd3d58505",
    "cross_cats_sorted": [
      "cs.DM"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CG",
    "submitted_at": "2015-01-01T21:22:30Z",
    "title_canon_sha256": "ad9ed15a0f67feddecaa62e5e86c3db1c3c43fced8d07f54b0cdcdab53c9e408"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1501.00318",
    "kind": "arxiv",
    "version": 1
  }
}