Pith Number

pith:VXI655LN

pith:2010:VXI655LNBCCX7DZTTUMH7RGPUQ

not attested not anchored not stored refs pending

Topological obstructions to fatness

Luis A. Florit, Wolfgang Ziller

arxiv:1001.0967 v3 · 2010-01-06 · math.DG · math.AT

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{VXI655LNBCCX7DZTTUMH7RGPUQ}

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	2026-05-18T02:38:18.650383Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

add1eef56d08857f8f339d187fc4cfa43da8f2b6e4c3d1481f33012e04237044

Aliases

arxiv: 1001.0967 · arxiv_version: 1001.0967v3 · doi: 10.48550/arxiv.1001.0967 · pith_short_12: VXI655LNBCCX · pith_short_16: VXI655LNBCCX7DZT · pith_short_8: VXI655LN

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/VXI655LNBCCX7DZTTUMH7RGPUQ \
  | 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: add1eef56d08857f8f339d187fc4cfa43da8f2b6e4c3d1481f33012e04237044

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "13d576fbe54e00d0374ed17287abee0d354313c404c7ed70b521efa502d5b36f",
    "cross_cats_sorted": [
      "math.AT"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.DG",
    "submitted_at": "2010-01-06T20:59:10Z",
    "title_canon_sha256": "ec89f4eb3df854535a1065c22e68643b3fff8329cc6e6b52c96fd868a2af98eb"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1001.0967",
    "kind": "arxiv",
    "version": 3
  }
}