Pith Number

pith:GQUJEJNB

pith:2013:GQUJEJNBKWLUBPGXMH3QOPMTRR

not attested not anchored not stored refs pending

Point invariants of third-order ODEs and hyper-CR Einstein-Weyl structures

Maciej Dunajski, Wojciech Krynski

arxiv:1310.5704 v1 · 2013-10-21 · math.DG · hep-th · 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{GQUJEJNBKWLUBPGXMH3QOPMTRR}

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	2026-05-18T01:46:56.701105Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

34289225a1559740bcd761f7073d938c43468414198d8c14411ba83afb5fb2e7

Aliases

arxiv: 1310.5704 · arxiv_version: 1310.5704v1 · doi: 10.48550/arxiv.1310.5704 · pith_short_12: GQUJEJNBKWLU · pith_short_16: GQUJEJNBKWLUBPGX · pith_short_8: GQUJEJNB

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/GQUJEJNBKWLUBPGXMH3QOPMTRR \
  | 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: 34289225a1559740bcd761f7073d938c43468414198d8c14411ba83afb5fb2e7

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "5d84fc18d09e115601622daef614ef37952ad1fb09feb4d4296f7d5ae5047564",
    "cross_cats_sorted": [
      "hep-th",
      "nlin.SI"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.DG",
    "submitted_at": "2013-10-21T20:00:02Z",
    "title_canon_sha256": "640799ca8ae28cb5216dbaf070667bd58f5a097ffc5ec2ebe79dd0592ac9f856"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1310.5704",
    "kind": "arxiv",
    "version": 1
  }
}