Pith Number

pith:WO5Y5OAY

pith:2017:WO5Y5OAYTN74WEMDTYC3IPKOIW

not attested not anchored not stored refs pending

An efficient data structure for counting all linear extensions of a poset, calculating its jump number, and the likes

Marcel Wild

arxiv:1704.07708 v1 · 2017-04-25 · cs.DS

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{WO5Y5OAYTN74WEMDTYC3IPKOIW}

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	2026-05-18T00:45:37.177297Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b3bb8eb8189b7fcb11839e05b43d4e45b1e54ee22cfffef041604f80bc523110

Aliases

arxiv: 1704.07708 · arxiv_version: 1704.07708v1 · doi: 10.48550/arxiv.1704.07708 · pith_short_12: WO5Y5OAYTN74 · pith_short_16: WO5Y5OAYTN74WEMD · pith_short_8: WO5Y5OAY

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/WO5Y5OAYTN74WEMDTYC3IPKOIW \
  | 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: b3bb8eb8189b7fcb11839e05b43d4e45b1e54ee22cfffef041604f80bc523110

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "177ef601e3aa5b34cec7f282671a286aff44700956d824f5e8fe353a8c95781d",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.DS",
    "submitted_at": "2017-04-25T14:15:08Z",
    "title_canon_sha256": "3f241d6bfd0b8246c376a28f257bc0ee1e2104cb3496fea529aa7bdde6a16df9"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1704.07708",
    "kind": "arxiv",
    "version": 1
  }
}