Pith Number

pith:EQK533NM

pith:2019:EQK533NMTHN3C3HOU4DH55UNWT

not attested not anchored not stored refs pending

Symmetries and reductions of integrable nonlocal partial differential equations

Linyu Peng

arxiv:1904.01854 v2 · 2019-04-03 · math-ph · math.AP · 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{EQK533NMTHN3C3HOU4DH55UNWT}

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	2026-05-17T23:41:24.460151Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

2415ddedac99dbb16ceea7067ef68db4e43632e8940c38e6b9bce9b219d4d545

Aliases

arxiv: 1904.01854 · arxiv_version: 1904.01854v2 · doi: 10.48550/arxiv.1904.01854 · pith_short_12: EQK533NMTHN3 · pith_short_16: EQK533NMTHN3C3HO · pith_short_8: EQK533NM

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/EQK533NMTHN3C3HOU4DH55UNWT \
  | 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: 2415ddedac99dbb16ceea7067ef68db4e43632e8940c38e6b9bce9b219d4d545

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "4a1f6138da14673e160deafbefed4674a0755d15a65d8e420500b4ef8241ed81",
    "cross_cats_sorted": [
      "math.AP",
      "math.MP",
      "nlin.SI"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math-ph",
    "submitted_at": "2019-04-03T08:56:37Z",
    "title_canon_sha256": "e77bb052aa85ba1dbb007afe2c8ee60b6726aabf680b594936d859ffe0199ef5"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1904.01854",
    "kind": "arxiv",
    "version": 2
  }
}