Pith Number

pith:XIG7V3PJ

pith:2011:XIG7V3PJYYSLSOEG424G5BT2IO

not attested not anchored not stored refs pending

Memoir on Integration of Ordinary Differential [1.2ex] Equations by Quadrature

Nail H. Ibragimov

arxiv:1108.0089 v1 · 2011-07-30 · math.CA

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{XIG7V3PJYYSLSOEG424G5BT2IO}

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	2026-05-18T04:16:31.703276Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

ba0dfaede9c624b93886e6b86e867a43b45e7f1e117d0843f3f856bafcd68788

Aliases

arxiv: 1108.0089 · arxiv_version: 1108.0089v1 · doi: 10.48550/arxiv.1108.0089 · pith_short_12: XIG7V3PJYYSL · pith_short_16: XIG7V3PJYYSLSOEG · pith_short_8: XIG7V3PJ

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/XIG7V3PJYYSLSOEG424G5BT2IO \
  | 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: ba0dfaede9c624b93886e6b86e867a43b45e7f1e117d0843f3f856bafcd68788

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "c761b24eb0c7b36c2673ade3a24099427eb06f2b9f812dc1cc03ee5ae3779dc4",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.CA",
    "submitted_at": "2011-07-30T17:49:32Z",
    "title_canon_sha256": "62e4a5b9b450ba15309b16763cc002aef9bc24e9eff337c391e4c79fc4677d72"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1108.0089",
    "kind": "arxiv",
    "version": 1
  }
}