Pith Number

pith:HIC27HZQ

pith:2012:HIC27HZQAYICZGVHELVTPDLJVQ

not attested not anchored not stored refs pending

Below All Subsets for Some Permutational Counting Problems

Andreas Bj\"orklund

arxiv:1211.0391 v3 · 2012-11-02 · 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{HIC27HZQAYICZGVHELVTPDLJVQ}

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	2026-05-18T03:15:06.357817Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

3a05af9f3006102c9aa722eb378d69ac203ce2e1a3541de49ec49e9d746df04f

Aliases

arxiv: 1211.0391 · arxiv_version: 1211.0391v3 · doi: 10.48550/arxiv.1211.0391 · pith_short_12: HIC27HZQAYIC · pith_short_16: HIC27HZQAYICZGVH · pith_short_8: HIC27HZQ

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/HIC27HZQAYICZGVHELVTPDLJVQ \
  | 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: 3a05af9f3006102c9aa722eb378d69ac203ce2e1a3541de49ec49e9d746df04f

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "f73671c1b0bcda7e1893378309a7efd3cb5b24f08456eb0a8b5d9b96f2d07ba5",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.DS",
    "submitted_at": "2012-11-02T08:27:13Z",
    "title_canon_sha256": "3c9ceb5c1c198efc8c3d08ea5c9ec0f28f2bafaaf9ecfa0d975f31775a113b31"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1211.0391",
    "kind": "arxiv",
    "version": 3
  }
}