Pith Number

pith:QFGUQKJ4

pith:2011:QFGUQKJ4TLJFNEQRG37EZ3VCE3

not attested not anchored not stored refs pending

A higher-rank version of the Q3 equation

Frank W Nijhoff

arxiv:1104.1166 v2 · 2011-04-06 · nlin.SI · math-ph · math.MP

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{QFGUQKJ4TLJFNEQRG37EZ3VCE3}

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	2026-05-18T04:24:43.446932Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

814d48293c9ad256921136fe4ceea226da2710244a132cb12b51778163491159

Aliases

arxiv: 1104.1166 · arxiv_version: 1104.1166v2 · doi: 10.48550/arxiv.1104.1166 · pith_short_12: QFGUQKJ4TLJF · pith_short_16: QFGUQKJ4TLJFNEQR · pith_short_8: QFGUQKJ4

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/QFGUQKJ4TLJFNEQRG37EZ3VCE3 \
  | 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: 814d48293c9ad256921136fe4ceea226da2710244a132cb12b51778163491159

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "4a77834579b57933f285b951110c75a544ce24ba8b8fb58e4f3c8506d6c7a9d0",
    "cross_cats_sorted": [
      "math-ph",
      "math.MP"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "nlin.SI",
    "submitted_at": "2011-04-06T18:39:41Z",
    "title_canon_sha256": "a93c249e209769f6232019f1fa78af2e13b900e597c7ce6fd64735c184055e02"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1104.1166",
    "kind": "arxiv",
    "version": 2
  }
}