Pith Number

pith:UQRS2F4W

pith:2014:UQRS2F4WPMFPVAZDNFTBBQGJEZ

not attested not anchored not stored refs pending

The Prelle-Singer method and Painlev\'e hierarchies

A Pickering, M Senthilvelan, P R Gordoa

arxiv:1405.2720 v1 · 2014-05-12 · nlin.SI

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{UQRS2F4WPMFPVAZDNFTBBQGJEZ}

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	2026-05-18T02:52:04.866908Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a4232d17967b0afa8323696610c0c92645ea182432cb21bef2d536de0ac71889

Aliases

arxiv: 1405.2720 · arxiv_version: 1405.2720v1 · doi: 10.48550/arxiv.1405.2720 · pith_short_12: UQRS2F4WPMFP · pith_short_16: UQRS2F4WPMFPVAZD · pith_short_8: UQRS2F4W

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/UQRS2F4WPMFPVAZDNFTBBQGJEZ \
  | 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: a4232d17967b0afa8323696610c0c92645ea182432cb21bef2d536de0ac71889

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "8356c1ccf5f3c1c21c6440af3504bf152abfa496717df68890d05c1543a08e1e",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "nlin.SI",
    "submitted_at": "2014-05-12T11:53:48Z",
    "title_canon_sha256": "9cab35610c49e189281c0561f8aa4590685f043b19deb4ce1f75f7955ab663d1"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1405.2720",
    "kind": "arxiv",
    "version": 1
  }
}