Pith Number

pith:VRBTVC67

pith:2013:VRBTVC67LKGNBZJEOUZ5Y2BCQG

not attested not anchored not stored refs pending

Geometry of Wachspress surfaces

Corey Irving, Hal Schenck

arxiv:1306.1445 v1 · 2013-06-06 · math.AG

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{VRBTVC67LKGNBZJEOUZ5Y2BCQG}

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	2026-05-18T02:47:53.047095Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

ac433a8bdf5a8cd0e5247533dc68228198c8eadd976c3cf60a65e15e6a14c558

Aliases

arxiv: 1306.1445 · arxiv_version: 1306.1445v1 · doi: 10.48550/arxiv.1306.1445 · pith_short_12: VRBTVC67LKGN · pith_short_16: VRBTVC67LKGNBZJE · pith_short_8: VRBTVC67

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/VRBTVC67LKGNBZJEOUZ5Y2BCQG \
  | 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: ac433a8bdf5a8cd0e5247533dc68228198c8eadd976c3cf60a65e15e6a14c558

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "47b7c23a06084ad95f5d27ee5d3b3d43c6265c7ac1e60801160746065f0cd750",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AG",
    "submitted_at": "2013-06-06T15:51:25Z",
    "title_canon_sha256": "22e681edad3d012c03a572a99f01e41a74c912d3f738a05465c6769a2ec9eacc"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1306.1445",
    "kind": "arxiv",
    "version": 1
  }
}