Pith Number

pith:WQXGBIWA

pith:2007:WQXGBIWASG3PLEFOT3ZOX2QLUQ

not attested not anchored not stored refs pending

On the infinitesimal rigidity of polyhedra with vertices in convex position

Ivan Izmestiev, Jean-Marc Schlenker

arxiv:0711.1981 v1 · 2007-11-13 · math.DG · math.MG

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{WQXGBIWASG3PLEFOT3ZOX2QLUQ}

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	2026-05-18T04:39:17.190998Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b42e60a2c091b6f590ae9ef2ebea0ba4393ddc3b03b16cda918ed0ef26525028

Aliases

arxiv: 0711.1981 · arxiv_version: 0711.1981v1 · doi: 10.48550/arxiv.0711.1981 · pith_short_12: WQXGBIWASG3P · pith_short_16: WQXGBIWASG3PLEFO · pith_short_8: WQXGBIWA

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/WQXGBIWASG3PLEFOT3ZOX2QLUQ \
  | 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: b42e60a2c091b6f590ae9ef2ebea0ba4393ddc3b03b16cda918ed0ef26525028

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "dcc902aabf3122861411f6031f61df0f0cfe04c459979155394693f9cb3545c6",
    "cross_cats_sorted": [
      "math.MG"
    ],
    "license": "",
    "primary_cat": "math.DG",
    "submitted_at": "2007-11-13T15:13:48Z",
    "title_canon_sha256": "9c04ca1be1bd457bcde8392ca3c5ac24aa3e3ed1f34c7e622da2268779646fac"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0711.1981",
    "kind": "arxiv",
    "version": 1
  }
}