Pith Number

pith:VJ6E3LPG

pith:2008:VJ6E3LPGBTXJ5AJTZBWIOFM6J6

not attested not anchored not stored refs pending

Toric cohomological rigidity of simple convex polytopes

Dong Youp Suh, Suyoung Choi, Taras Panov

arxiv:0807.4800 v2 · 2008-07-30 · math.AT · math.CO

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{VJ6E3LPGBTXJ5AJTZBWIOFM6J6}

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	2026-05-18T02:58:11.290459Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

aa7c4dade60cee9e8133c86c87159e4f87627567ec21e03c7423651c34cbdebd

Aliases

arxiv: 0807.4800 · arxiv_version: 0807.4800v2 · doi: 10.48550/arxiv.0807.4800 · pith_short_12: VJ6E3LPGBTXJ · pith_short_16: VJ6E3LPGBTXJ5AJT · pith_short_8: VJ6E3LPG

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/VJ6E3LPGBTXJ5AJTZBWIOFM6J6 \
  | 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: aa7c4dade60cee9e8133c86c87159e4f87627567ec21e03c7423651c34cbdebd

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "2d435f13fead14f71a497b932b774fb52471a538e90d9b8f5417407571997d9c",
    "cross_cats_sorted": [
      "math.CO"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AT",
    "submitted_at": "2008-07-30T07:33:09Z",
    "title_canon_sha256": "227de572e4bcd644334a36b982b5d0c0ee76f00e7e5bd8d29445992cae738b1b"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0807.4800",
    "kind": "arxiv",
    "version": 2
  }
}