Pith Number

pith:ETOH3FV5

pith:2025:ETOH3FV5PJNSA37X7Y6NVIKOST

not attested not anchored not stored refs pending

A Discrete Analog of Tutte's Barycentric Embeddings on Surfaces

\'Eric Colin de Verdi\`ere, Lo\"ic Dubois, Vincent Despr\'e

arxiv:2507.13096 v4 · 2025-07-17 · 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{ETOH3FV5PJNSA37X7Y6NVIKOST}

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	2026-07-03T01:17:12.245374Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

24dc7d96bd7a5b206ff7fe3cdaa14e94e607cde8476a0ef4314ac46534d0a343

Aliases

arxiv: 2507.13096 · arxiv_version: 2507.13096v4 · doi: 10.48550/arxiv.2507.13096 · pith_short_12: ETOH3FV5PJNS · pith_short_16: ETOH3FV5PJNSA37X · pith_short_8: ETOH3FV5

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/ETOH3FV5PJNSA37X7Y6NVIKOST \
  | 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: 24dc7d96bd7a5b206ff7fe3cdaa14e94e607cde8476a0ef4314ac46534d0a343

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "2af268d2e5c27f466c9818f932193965371dc11e487cc73c8d0381b95623d6b7",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "cs.CG",
    "submitted_at": "2025-07-17T13:07:20Z",
    "title_canon_sha256": "de15413f283ed74a99601199de6ef8cabc85857ada3072e32dc692fdd1483703"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2507.13096",
    "kind": "arxiv",
    "version": 4
  }
}