Pith Number

pith:U72CLNKR

pith:2014:U72CLNKR6LD25BVUC7FVSNL3ZH

not attested not anchored not stored refs pending

Where best to place a Dirichlet condition in an anisotropic membrane?

Davide Zucco, Paolo Tilli

arxiv:1412.2942 v2 · 2014-12-09 · math.OC · math.SP

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{U72CLNKR6LD25BVUC7FVSNL3ZH}

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	2026-05-18T01:37:44.602751Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a7f425b551f2c7ae86b417cb59357bc9fbf70284091a73d9e8c96973226a3327

Aliases

arxiv: 1412.2942 · arxiv_version: 1412.2942v2 · doi: 10.48550/arxiv.1412.2942 · pith_short_12: U72CLNKR6LD2 · pith_short_16: U72CLNKR6LD25BVU · pith_short_8: U72CLNKR

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/U72CLNKR6LD25BVUC7FVSNL3ZH \
  | 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: a7f425b551f2c7ae86b417cb59357bc9fbf70284091a73d9e8c96973226a3327

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "44ee683d90b0f9c4fb47f1eabca5326dc9ff2cfb51563743cb03f6a96281b87d",
    "cross_cats_sorted": [
      "math.SP"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.OC",
    "submitted_at": "2014-12-09T12:42:18Z",
    "title_canon_sha256": "167643c012e142828eb8e3509a68b7341a67f1ff9da7a1af5f4bd62b88e32866"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1412.2942",
    "kind": "arxiv",
    "version": 2
  }
}