Pith Number

pith:BKVWSYWZ

pith:2017:BKVWSYWZHJJP7CB4WY6V22WKWQ

not attested not anchored not stored refs pending

Total curvature of planar graphs with nonnegative combinatorial curvature

Bobo Hua, Yanhui Su

arxiv:1703.04119 v2 · 2017-03-12 · math.MG · math.DG

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{BKVWSYWZHJJP7CB4WY6V22WKWQ}

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	2026-05-18T00:35:46.463894Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

0aab6962d93a52ff883cb63d5d6acab423fb86fef3b9ccb7407f2c582943dee2

Aliases

arxiv: 1703.04119 · arxiv_version: 1703.04119v2 · doi: 10.48550/arxiv.1703.04119 · pith_short_12: BKVWSYWZHJJP · pith_short_16: BKVWSYWZHJJP7CB4 · pith_short_8: BKVWSYWZ

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/BKVWSYWZHJJP7CB4WY6V22WKWQ \
  | 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: 0aab6962d93a52ff883cb63d5d6acab423fb86fef3b9ccb7407f2c582943dee2

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "790ddc8416e942c333830bc4ead8fe9148d446f1a856af4ef6f80ded770fad98",
    "cross_cats_sorted": [
      "math.DG"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.MG",
    "submitted_at": "2017-03-12T13:44:07Z",
    "title_canon_sha256": "2ec315220a5331697e5643a4757a78396266086e4b9919655da987c45e00eb5f"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1703.04119",
    "kind": "arxiv",
    "version": 2
  }
}