Pith Number

pith:LRQUZG2N

pith:2019:LRQUZG2NM3VGH4ZIJO7PQNWWEG

not attested not anchored not stored refs pending

Approximate solutions to the one-phase Stefan problem with non-linear temperature-dependent thermal conductivity

Domingo A. Tarzia, Jos\'e A. Semitiel, Julieta Bollati, Mar\'ia F. Natale

arxiv:1906.08601 v1 · 2019-02-25 · cond-mat.stat-mech

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{LRQUZG2NM3VGH4ZIJO7PQNWWEG}

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	2026-05-17T23:42:51.968483Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

5c614c9b4d66ea63f3284bbef836d621b554c777cc3775a84cd186b23c25ed05

Aliases

arxiv: 1906.08601 · arxiv_version: 1906.08601v1 · doi: 10.48550/arxiv.1906.08601 · pith_short_12: LRQUZG2NM3VG · pith_short_16: LRQUZG2NM3VGH4ZI · pith_short_8: LRQUZG2N

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/LRQUZG2NM3VGH4ZIJO7PQNWWEG \
  | 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: 5c614c9b4d66ea63f3284bbef836d621b554c777cc3775a84cd186b23c25ed05

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "bca852c53f528bea0fca44f4c450ffb4dd15c8bded91df43194eab1839990646",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cond-mat.stat-mech",
    "submitted_at": "2019-02-25T13:59:56Z",
    "title_canon_sha256": "e07bc8c749d9127a5ecf8be7a8df0f8504d96fcf829ccb89295d8b0c98d7fb9c"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1906.08601",
    "kind": "arxiv",
    "version": 1
  }
}