Pith Number

pith:KQGL4A5A

pith:2012:KQGL4A5AQPODYZAGJ3IOVAILVH

not attested not anchored not stored refs pending

Soliton surfaces associated with sigma models; differential and algebraic aspect

A. M. Grundland, P. P. Goldstein, S. Post

arxiv:1207.1340 v1 · 2012-07-05 · math-ph · math.MP · 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{KQGL4A5AQPODYZAGJ3IOVAILVH}

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	2026-05-18T01:56:34.198116Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

540cbe03a083dc3c64064ed0ea810ba9cd09c688bee3adf1764c77881d0d0106

Aliases

arxiv: 1207.1340 · arxiv_version: 1207.1340v1 · doi: 10.48550/arxiv.1207.1340 · pith_short_12: KQGL4A5AQPOD · pith_short_16: KQGL4A5AQPODYZAG · pith_short_8: KQGL4A5A

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/KQGL4A5AQPODYZAGJ3IOVAILVH \
  | 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: 540cbe03a083dc3c64064ed0ea810ba9cd09c688bee3adf1764c77881d0d0106

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "0510e625b2d4cceda93b473031f7197840536394ed5755add1381b1b49a0ff73",
    "cross_cats_sorted": [
      "math.MP",
      "nlin.SI"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math-ph",
    "submitted_at": "2012-07-05T19:40:36Z",
    "title_canon_sha256": "eded9662384d7500452161f1b82bf1446190c5dfe380f2883fe736fc1245f3bc"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1207.1340",
    "kind": "arxiv",
    "version": 1
  }
}