Pith Number

pith:M4LHMMCO

pith:1998:M4LHMMCOQ4MSA2XJSPRBSRJCNK

not attested not anchored not stored refs pending

r-Matrix for the restricted KdV Flows with the Neumann constraints

Ruguang Zhou

arxiv:nlin/9804201 v1 · 1998-04-01 · 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{M4LHMMCOQ4MSA2XJSPRBSRJCNK}

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	2026-05-18T01:38:17.585306Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

671676304e8719206ae993e21945226a9dfebe0745f91d9dfd2771643534bea0

Aliases

arxiv: nlin/9804201 · arxiv_version: nlin/9804201v1 · doi: 10.48550/arxiv.nlin/9804201 · pith_short_12: M4LHMMCOQ4MS · pith_short_16: M4LHMMCOQ4MSA2XJ · pith_short_8: M4LHMMCO

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/M4LHMMCOQ4MSA2XJSPRBSRJCNK \
  | 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: 671676304e8719206ae993e21945226a9dfebe0745f91d9dfd2771643534bea0

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "34825d7311a8bb87648b3ced072547df1872415e3335e8e1fba393c9c13817ec",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "nlin.SI",
    "submitted_at": "1998-04-01T00:00:00Z",
    "title_canon_sha256": "83f4df8a199e817ac8e1cf9406b7addad9d77d2e9c67a1f7d7a37935f0130831"
  },
  "schema_version": "1.0",
  "source": {
    "id": "nlin/9804201",
    "kind": "arxiv",
    "version": 1
  }
}