Pith Number

pith:JZ4ERP7I

pith:2013:JZ4ERP7I6PY6EGELDPQDV7IVWQ

not attested not anchored not stored refs pending

On Generating Permutations Under User-Defined Constraints

Dhruvil Badani

arxiv:1311.3813 v1 · 2013-11-15 · cs.DM · 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{JZ4ERP7I6PY6EGELDPQDV7IVWQ}

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	2026-05-18T03:07:02.962026Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

4e7848bfe8f3f1e2188b1be03afd15b42cdec3f5fec161fec01a4cf4a446826e

Aliases

arxiv: 1311.3813 · arxiv_version: 1311.3813v1 · doi: 10.48550/arxiv.1311.3813 · pith_short_12: JZ4ERP7I6PY6 · pith_short_16: JZ4ERP7I6PY6EGEL · pith_short_8: JZ4ERP7I

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/JZ4ERP7I6PY6EGELDPQDV7IVWQ \
  | 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: 4e7848bfe8f3f1e2188b1be03afd15b42cdec3f5fec161fec01a4cf4a446826e

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "141b3f06056ebe23b46754faf9a526916e20cba3dc17162a2dac73bd54cbaa3d",
    "cross_cats_sorted": [
      "math.CO"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.DM",
    "submitted_at": "2013-11-15T11:41:20Z",
    "title_canon_sha256": "a15ee1e83b1d4b95f1f44db6261e330ac86cb40caa8e86e5eb4d532304126c4f"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1311.3813",
    "kind": "arxiv",
    "version": 1
  }
}