Pith Number

pith:ND5MC3OG

pith:2010:ND5MC3OGZ2CGE7HM2KVQKA3EQQ

not attested not anchored not stored refs pending

An integrating factor matrix method to find first integrals

G. R. W. Quispel, K. V. I. Saputra, L. van Veen

arxiv:1003.3589 v1 · 2010-03-18 · math.DS

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{ND5MC3OGZ2CGE7HM2KVQKA3EQQ}

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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	2026-05-18T02:08:25.980765Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

68fac16dc6ce84627cecd2ab050364842cdb6b2b5cf4dc9c5b6e91252c474ad4

Aliases

arxiv: 1003.3589 · arxiv_version: 1003.3589v1 · doi: 10.48550/arxiv.1003.3589 · pith_short_12: ND5MC3OGZ2CG · pith_short_16: ND5MC3OGZ2CGE7HM · pith_short_8: ND5MC3OG

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/ND5MC3OGZ2CGE7HM2KVQKA3EQQ \
  | 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: 68fac16dc6ce84627cecd2ab050364842cdb6b2b5cf4dc9c5b6e91252c474ad4

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "57a078d8ab76cce9895a02806651bb4d5c678763959d703b65d6d02753b88ede",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.DS",
    "submitted_at": "2010-03-18T14:30:16Z",
    "title_canon_sha256": "4ec115e508e7217f7176deeb344ba8096456e8f06f74911a78cdee1eef14c56e"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1003.3589",
    "kind": "arxiv",
    "version": 1
  }
}