Pith Number

pith:SWIJXAE7

pith:2018:SWIJXAE7RWXRJRLAU6OUNEP3LP

not attested not anchored not stored refs pending

A Robust Solver for a Second Order Mixed Finite Element Method for the Cahn-Hilliard Equation

Amanda E. Diegel, Li-yeng Sung, Susanne C. Brenner

arxiv:1811.03430 v1 · 2018-11-06 · 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{SWIJXAE7RWXRJRLAU6OUNEP3LP}

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	2026-05-18T00:01:16.208396Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

95909b809f8daf14c560a79d4691fb5bc07c412d71fcfdbdb410bbb9abd9d319

Aliases

arxiv: 1811.03430 · arxiv_version: 1811.03430v1 · doi: 10.48550/arxiv.1811.03430 · pith_short_12: SWIJXAE7RWXR · pith_short_16: SWIJXAE7RWXRJRLA · pith_short_8: SWIJXAE7

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/SWIJXAE7RWXRJRLAU6OUNEP3LP \
  | 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: 95909b809f8daf14c560a79d4691fb5bc07c412d71fcfdbdb410bbb9abd9d319

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "711323e078cb4a9931562127898b11e54a2cea545ef82a0ba8a9aa70873b968b",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.NA",
    "submitted_at": "2018-11-06T19:30:20Z",
    "title_canon_sha256": "b09458eaf9bdef4d706a82977cea5729bc52b2e1b8def994b7c9c59d039a839c"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1811.03430",
    "kind": "arxiv",
    "version": 1
  }
}