Pith Number

pith:4L2ZA2AD

pith:2013:4L2ZA2ADUJ7JA22UWWAXPTYDD6

not attested not anchored not stored refs pending

A nonlocal two phase Stefan problem

Emmanuel Chasseigne (LMPT, FRDP), Silvia Sastre-Gomez

arxiv:1307.1410 v1 · 2013-07-04 · math.AP

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{4L2ZA2ADUJ7JA22UWWAXPTYDD6}

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	2026-05-18T03:19:13.773758Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e2f5906803a27e906b54b58177cf031fbe2d633cbb3576e2d12b3aef7fc66538

Aliases

arxiv: 1307.1410 · arxiv_version: 1307.1410v1 · doi: 10.48550/arxiv.1307.1410 · pith_short_12: 4L2ZA2ADUJ7J · pith_short_16: 4L2ZA2ADUJ7JA22U · pith_short_8: 4L2ZA2AD

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/4L2ZA2ADUJ7JA22UWWAXPTYDD6 \
  | 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: e2f5906803a27e906b54b58177cf031fbe2d633cbb3576e2d12b3aef7fc66538

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "88c05a3b5f4969a8de127697ee480df8d4ff608f2768dd08b0e08e6cd8fdf21c",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AP",
    "submitted_at": "2013-07-04T17:00:07Z",
    "title_canon_sha256": "6fbac8206c1e233c7140eb01dd10f248e5ba361461b0a0aa638783d193101f34"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1307.1410",
    "kind": "arxiv",
    "version": 1
  }
}