Pith Number

pith:2365DIMK

pith:2017:2365DIMKRYEVRMPA2JERN2K2TU

not attested not anchored not stored refs pending

Analysis of the gift exchange problem

David Applegate, Doron Zeilberger, Moa Apagodu, N. J. A. Sloane

arxiv:1701.08394 v1 · 2017-01-29 · 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{2365DIMKRYEVRMPA2JERN2K2TU}

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	2026-05-18T00:51:29.854736Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

d6fdd1a18a8e0958b1e0d24916e95a9d286d78853dda659d4d22efc2d55a6712

Aliases

arxiv: 1701.08394 · arxiv_version: 1701.08394v1 · doi: 10.48550/arxiv.1701.08394 · pith_short_12: 2365DIMKRYEV · pith_short_16: 2365DIMKRYEVRMPA · pith_short_8: 2365DIMK

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/2365DIMKRYEVRMPA2JERN2K2TU \
  | 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: d6fdd1a18a8e0958b1e0d24916e95a9d286d78853dda659d4d22efc2d55a6712

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "ce8dda559f85e7b0d9e54b66a287790499ec465ebbb4bfa5698c86b28092071d",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.CO",
    "submitted_at": "2017-01-29T16:14:15Z",
    "title_canon_sha256": "b47f56516989a03f9d2d494f97955bd4f70282e3d881e337796d1b410c12f3c9"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1701.08394",
    "kind": "arxiv",
    "version": 1
  }
}