Pith Number

pith:7ZXBYXH6

pith:2014:7ZXBYXH6CSDZUEQLQS4JMYKER4

not attested not anchored not stored refs pending

Du-Hwang Characteristic Area: Catch-22

A.A.Tuzhilin, A.O.Ivanov

arxiv:1402.6079 v1 · 2014-02-25 · math.MG · 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{7ZXBYXH6CSDZUEQLQS4JMYKER4}

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	2026-05-18T02:57:51.666129Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

fe6e1c5cfe14879a120b84b89661448f2f74fbccca6e9bc9977c274e1bff3a07

Aliases

arxiv: 1402.6079 · arxiv_version: 1402.6079v1 · doi: 10.48550/arxiv.1402.6079 · pith_short_12: 7ZXBYXH6CSDZ · pith_short_16: 7ZXBYXH6CSDZUEQL · pith_short_8: 7ZXBYXH6

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/7ZXBYXH6CSDZUEQLQS4JMYKER4 \
  | 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: fe6e1c5cfe14879a120b84b89661448f2f74fbccca6e9bc9977c274e1bff3a07

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "77348c69931241e274d797c1130394e5e35e2c28e3d20e9a2d260648a7d36391",
    "cross_cats_sorted": [
      "math.CO",
      "math.OC"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.MG",
    "submitted_at": "2014-02-25T08:04:05Z",
    "title_canon_sha256": "cabc53e4865f18825a3e5b27497efc36b37384a9582108119bca74ed4b0d9697"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1402.6079",
    "kind": "arxiv",
    "version": 1
  }
}