Pith Number

pith:QDH2WYBN

pith:2014:QDH2WYBN7A6GD326MW35STZFJK

not attested not anchored not stored refs pending

Optimal Control of a Free Boundary Problem with Surface Tension Effects: A Priori Error Analysis

Harbir Antil, Patrick Sodr\'e, Ricardo H. Nochetto

arxiv:1402.5709 v2 · 2014-02-24 · math.OC · 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{QDH2WYBN7A6GD326MW35STZFJK}

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	2026-05-18T02:30:15.697683Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

80cfab602df83c61ef5e65b7d94f254aa2107bffbfdd2957d1c74dbcb2cfe7f0

Aliases

arxiv: 1402.5709 · arxiv_version: 1402.5709v2 · doi: 10.48550/arxiv.1402.5709 · pith_short_12: QDH2WYBN7A6G · pith_short_16: QDH2WYBN7A6GD326 · pith_short_8: QDH2WYBN

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/QDH2WYBN7A6GD326MW35STZFJK \
  | 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: 80cfab602df83c61ef5e65b7d94f254aa2107bffbfdd2957d1c74dbcb2cfe7f0

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "0fcc0f4e2cd6c36d06174c7b2d08660e0017854d0861d6215b29d936d7c9d111",
    "cross_cats_sorted": [
      "math.NA"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.OC",
    "submitted_at": "2014-02-24T02:57:56Z",
    "title_canon_sha256": "65a9e2f9b5b498bffefc860643f9835130dd3deb2e1da1aecd8ab7e7b69b4115"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1402.5709",
    "kind": "arxiv",
    "version": 2
  }
}