Pith Number

pith:VH3LMFJQ

pith:2011:VH3LMFJQEYTMKUE4KRRDXT5T4D

not attested not anchored not stored refs pending

Backlund Transformations for Darboux Integrable Differential Systems

Ian M. Anderson, Mark E. Fels

arxiv:1108.5443 v2 · 2011-08-27 · math.DG

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{VH3LMFJQEYTMKUE4KRRDXT5T4D}

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	2026-05-18T02:47:53.258088Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a9f6b615302626c5509c54623bcfb3e0de6252c8b7c32eecf7dc766169c8e9e4

Aliases

arxiv: 1108.5443 · arxiv_version: 1108.5443v2 · doi: 10.48550/arxiv.1108.5443 · pith_short_12: VH3LMFJQEYTM · pith_short_16: VH3LMFJQEYTMKUE4 · pith_short_8: VH3LMFJQ

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/VH3LMFJQEYTMKUE4KRRDXT5T4D \
  | 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: a9f6b615302626c5509c54623bcfb3e0de6252c8b7c32eecf7dc766169c8e9e4

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "eab4d6b60c05cfb025789405a4baa92c16f0ab6902b335f4f597e14ee79f03cd",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.DG",
    "submitted_at": "2011-08-27T12:11:14Z",
    "title_canon_sha256": "d47255b4c62d53ce79d00dd50515a33f1eba790bcb85a560b52f10691c5f8cb2"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1108.5443",
    "kind": "arxiv",
    "version": 2
  }
}