Pith Number

pith:JEG7S6UG

pith:2008:JEG7S6UGFBXHFXCMFR36BFJWP5

not attested not anchored not stored refs pending

Lower bound theorem for normal pseudomanifolds

Basudeb Datta, Bhaskar Bagchi

arxiv:0802.3747 v3 · 2008-02-26 · math.GT · 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{JEG7S6UGFBXHFXCMFR36BFJWP5}

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	2026-05-18T04:03:44.122050Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

490df97a86286e72dc4c2c77e095367f772f3d2b9ba3dc2b008f9be4c58d2a94

Aliases

arxiv: 0802.3747 · arxiv_version: 0802.3747v3 · doi: 10.48550/arxiv.0802.3747 · pith_short_12: JEG7S6UGFBXH · pith_short_16: JEG7S6UGFBXHFXCM · pith_short_8: JEG7S6UG

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/JEG7S6UGFBXHFXCMFR36BFJWP5 \
  | 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: 490df97a86286e72dc4c2c77e095367f772f3d2b9ba3dc2b008f9be4c58d2a94

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "071a01cb4bd25e0d030e93f9d3f5cdff54c2a918553966f6d046f58664f44834",
    "cross_cats_sorted": [
      "math.CO"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.GT",
    "submitted_at": "2008-02-26T05:26:11Z",
    "title_canon_sha256": "190dec85fec30a3617a5198548dfd88a35473b8aec113a1c5190df7b218d1766"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0802.3747",
    "kind": "arxiv",
    "version": 3
  }
}