Pith Number

pith:XEW6ZTGI

pith:2018:XEW6ZTGIGVZ2QXONQXXGU2OUUR

not attested not anchored not stored refs pending

High order nonlocal symmetries and exact solutions of variable coefficient KdV equation

Hanze Liu, Linlin Zhang, Xiangpeng Xin

arxiv:1806.06991 v1 · 2018-06-19 · 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{XEW6ZTGIGVZ2QXONQXXGU2OUUR}

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	2026-05-18T00:12:52.041974Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b92decccc83573a85dcd85ee6a69d4a46cb9a8af7af06859ed052d8ed5310d20

Aliases

arxiv: 1806.06991 · arxiv_version: 1806.06991v1 · doi: 10.48550/arxiv.1806.06991 · pith_short_12: XEW6ZTGIGVZ2 · pith_short_16: XEW6ZTGIGVZ2QXON · pith_short_8: XEW6ZTGI

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/XEW6ZTGIGVZ2QXONQXXGU2OUUR \
  | 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: b92decccc83573a85dcd85ee6a69d4a46cb9a8af7af06859ed052d8ed5310d20

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "04615c2f1f0164875e2f59cb590a6f3eb4f25d0af5f144f7bc1ba14fd6911c2a",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "nlin.SI",
    "submitted_at": "2018-06-19T00:41:45Z",
    "title_canon_sha256": "49ceb4f5a508d33b1e0229ee14c132a75cb9121e3c08ce9bbf9b201ff4a37572"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1806.06991",
    "kind": "arxiv",
    "version": 1
  }
}