Pith Number

pith:MCQYFBL7

pith:2016:MCQYFBL7KMRBBGIEF2VSPSZ5B3

not attested not anchored not stored refs pending

Order-preserving 1-string representations of planar graphs

Martin Derka, Therese Biedl

arxiv:1609.08132 v1 · 2016-09-26 · cs.CG

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{MCQYFBL7KMRBBGIEF2VSPSZ5B3}

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	2026-05-18T01:03:54.342626Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

60a182857f53221099042eab27cb3d0ed2e83ab77e913457f906e58658bfc70e

Aliases

arxiv: 1609.08132 · arxiv_version: 1609.08132v1 · doi: 10.48550/arxiv.1609.08132 · pith_short_12: MCQYFBL7KMRB · pith_short_16: MCQYFBL7KMRBBGIE · pith_short_8: MCQYFBL7

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/MCQYFBL7KMRBBGIEF2VSPSZ5B3 \
  | 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: 60a182857f53221099042eab27cb3d0ed2e83ab77e913457f906e58658bfc70e

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "831964b8a90b3f947a24a9f662fb35a8a85661db01e8b6e68d3a5ce2466003ff",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CG",
    "submitted_at": "2016-09-26T19:30:37Z",
    "title_canon_sha256": "1ed54e5b79eae5a303be4dab834093f96c3f52240276cd5d347307ee17fd10cb"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1609.08132",
    "kind": "arxiv",
    "version": 1
  }
}