Pith Number

pith:FPEW4K57

pith:2012:FPEW4K57RSIRKUXQCWCJJRXCOU

not attested not anchored not stored refs pending

Solutions to the modified Korteweg-de Vries equation

Da-jun Zhang, Jing Zhou, Song-lin Zhao, Ying-ying Sun

arxiv:1203.5851 v2 · 2012-03-27 · nlin.SI · math-ph · math.MP

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{FPEW4K57RSIRKUXQCWCJJRXCOU}

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	2026-05-18T02:44:08.645307Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

2bc96e2bbf8c911552f0158494c6e2753318af9d6e314220e3fd5aa49cb38fa8

Aliases

arxiv: 1203.5851 · arxiv_version: 1203.5851v2 · doi: 10.48550/arxiv.1203.5851 · pith_short_12: FPEW4K57RSIR · pith_short_16: FPEW4K57RSIRKUXQ · pith_short_8: FPEW4K57

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/FPEW4K57RSIRKUXQCWCJJRXCOU \
  | 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: 2bc96e2bbf8c911552f0158494c6e2753318af9d6e314220e3fd5aa49cb38fa8

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "31a6ee079b50c419d16c6798d76290ae2851c59fd16113f60eaabea9a7100638",
    "cross_cats_sorted": [
      "math-ph",
      "math.MP"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "nlin.SI",
    "submitted_at": "2012-03-27T01:14:21Z",
    "title_canon_sha256": "71826d899647146fe5b4b5626541b0c473fbcedc026dd3d97214acda48176b8d"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1203.5851",
    "kind": "arxiv",
    "version": 2
  }
}