Pith Number

pith:4JHU4H6A

pith:2010:4JHU4H6A6NCCBOIP5XPLENMROR

not attested not anchored not stored refs pending

SimplicialDecomposability: a package for Macaulay 2

David Cook II

arxiv:1002.2438 v3 · 2010-02-11 · 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{4JHU4H6A6NCCBOIP5XPLENMROR}

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	2026-05-18T04:42:02.596487Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e24f4e1fc0f34420b90feddeb235917459b95588574edb7ce1fbeb663039e2c0

Aliases

arxiv: 1002.2438 · arxiv_version: 1002.2438v3 · doi: 10.48550/arxiv.1002.2438 · pith_short_12: 4JHU4H6A6NCC · pith_short_16: 4JHU4H6A6NCCBOIP · pith_short_8: 4JHU4H6A

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/4JHU4H6A6NCCBOIP5XPLENMROR \
  | 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: e24f4e1fc0f34420b90feddeb235917459b95588574edb7ce1fbeb663039e2c0

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "82f209e9226cc0be375af04954e7c98389921bec1a826b7f03df5dec419847cf",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.CO",
    "submitted_at": "2010-02-11T21:35:50Z",
    "title_canon_sha256": "11563a1a5a11502860121f0da9797a5f34c8c9f70700d8a4cf399e72937532be"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1002.2438",
    "kind": "arxiv",
    "version": 3
  }
}