Pith Number

pith:VT6Z5WRQ

pith:2017:VT6Z5WRQDIF72L33QFKKEBX3IG

not attested not anchored not stored refs pending

An energy stable fourth order finite difference scheme for the Cahn-Hilliard equation

Cheng Wang, Kelong Cheng, Steven M. Wise, Wenqiang Feng

arxiv:1712.06210 v1 · 2017-12-17 · math.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{VT6Z5WRQDIF72L33QFKKEBX3IG}

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	2026-05-18T00:27:50.860124Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

acfd9eda301a0bfd2f7b8154a206fb41be72e5e6fceed077c7fc4854d96f7b2f

Aliases

arxiv: 1712.06210 · arxiv_version: 1712.06210v1 · doi: 10.48550/arxiv.1712.06210 · pith_short_12: VT6Z5WRQDIF7 · pith_short_16: VT6Z5WRQDIF72L33 · pith_short_8: VT6Z5WRQ

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/VT6Z5WRQDIF72L33QFKKEBX3IG \
  | 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: acfd9eda301a0bfd2f7b8154a206fb41be72e5e6fceed077c7fc4854d96f7b2f

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "a5b3e656d99c6293f7f4624fa17c859953e265f0b768505dbb46eb06f2d7a3d5",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.NA",
    "submitted_at": "2017-12-17T23:53:58Z",
    "title_canon_sha256": "59fbca50b8468cd7c8c5c3967653eb4e9ea05d90c4488f5a7e53c22d004e9e1d"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1712.06210",
    "kind": "arxiv",
    "version": 1
  }
}