Pith Number

pith:D5GWKWEP

pith:2018:D5GWKWEPXXIVDGFDAZJUXHJROM

not attested not anchored not stored refs pending

Bespoke finite difference methods that preserve two local conservation laws of the modified KdV equation

Gianluca Frasca-Caccia

arxiv:1808.09370 v1 · 2018-08-28 · math.NA · cs.NA

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{D5GWKWEPXXIVDGFDAZJUXHJROM}

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	2026-06-04T20:13:16.744833Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

1f4d65588fbdd15198a306534b9d31730de436bc79fefeeb841f9a09db5ad25c

Aliases

arxiv: 1808.09370 · arxiv_version: 1808.09370v1 · doi: 10.48550/arxiv.1808.09370 · pith_short_12: D5GWKWEPXXIV · pith_short_16: D5GWKWEPXXIVDGFD · pith_short_8: D5GWKWEP

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/D5GWKWEPXXIVDGFDAZJUXHJROM \
  | 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: 1f4d65588fbdd15198a306534b9d31730de436bc79fefeeb841f9a09db5ad25c

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "99bff2111990e3632279153493c429b63f629b2e5025cd2f96b0d0bb16bf402d",
    "cross_cats_sorted": [
      "cs.NA"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.NA",
    "submitted_at": "2018-08-28T15:39:18Z",
    "title_canon_sha256": "886f5560289f294f4bba8d9be1d776a73bb821ce121fa0e40638bd309fc64935"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1808.09370",
    "kind": "arxiv",
    "version": 1
  }
}