Pith Number

pith:KC6KNLG4

pith:2013:KC6KNLG4VUCHX7RPC73ILF6TZ5

not attested not anchored not stored refs pending

What is the optimal shape of a fin for one dimensional heat conduction?

Gilles Marck (LJLL), Gr\'egoire Nadin (LJLL), Yannick Privat (LJLL)

arxiv:1310.2214 v2 · 2013-10-08 · math.AP · math.OC

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{KC6KNLG4VUCHX7RPC73ILF6TZ5}

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	2026-05-18T02:52:55.987127Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

50bca6acdcad047bfe2f17f68597d3cf607f863d5625bfb75cae2cba0fa6c4e4

Aliases

arxiv: 1310.2214 · arxiv_version: 1310.2214v2 · doi: 10.48550/arxiv.1310.2214 · pith_short_12: KC6KNLG4VUCH · pith_short_16: KC6KNLG4VUCHX7RP · pith_short_8: KC6KNLG4

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/KC6KNLG4VUCHX7RPC73ILF6TZ5 \
  | 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: 50bca6acdcad047bfe2f17f68597d3cf607f863d5625bfb75cae2cba0fa6c4e4

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "b387d4858cf70fc068f842276c927370853ba0611fc26fd3d3aabdba67870f2e",
    "cross_cats_sorted": [
      "math.OC"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AP",
    "submitted_at": "2013-10-08T18:27:42Z",
    "title_canon_sha256": "b5682e8c2b3d53a18f9856336047e75eda7da8a12d9887f3bb915032ff2d27c8"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1310.2214",
    "kind": "arxiv",
    "version": 2
  }
}