Pith Number

pith:UEAXKE2Q

pith:2012:UEAXKE2QGD5PD5F5MJT7PS6P5Y

not attested not anchored not stored refs pending

Agent Arrangement Problem

Tadashi Sakuma, Tomoki Nakamigawa

arxiv:1212.2306 v3 · 2012-12-11 · math.CO · math.OC

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{UEAXKE2QGD5PD5F5MJT7PS6P5Y}

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	2026-05-18T03:38:04.655120Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a10175135030faf1f4bd6267f7cbcfee351a6b1abdbdbe258d50d4ff2cc22760

Aliases

arxiv: 1212.2306 · arxiv_version: 1212.2306v3 · doi: 10.48550/arxiv.1212.2306 · pith_short_12: UEAXKE2QGD5P · pith_short_16: UEAXKE2QGD5PD5F5 · pith_short_8: UEAXKE2Q

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/UEAXKE2QGD5PD5F5MJT7PS6P5Y \
  | 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: a10175135030faf1f4bd6267f7cbcfee351a6b1abdbdbe258d50d4ff2cc22760

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "f1392dd189ed4ba395edc5e01273df4e52781c5edfc57a068b42a1a626d65615",
    "cross_cats_sorted": [
      "math.OC"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.CO",
    "submitted_at": "2012-12-11T05:46:18Z",
    "title_canon_sha256": "53dfcc48a2a13b863fcc229eb44637ff25dda4fd653138fc062cda4ddf45d2ee"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1212.2306",
    "kind": "arxiv",
    "version": 3
  }
}