Pith Number

pith:4YOM2QC5

pith:2018:4YOM2QC53E6SAKDNJLUMJZA2MT

not attested not anchored not stored refs pending

One-phase Stefan-like problems with a latent heat depending on the position and velocity of the free boundary, and with Neumann or Robin boundary conditions at the fixed face

Domingo A. Tarzia, Julieta Bollati

arxiv:1810.09547 v1 · 2018-10-12 · math.AP · math-ph · math.MP

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{4YOM2QC53E6SAKDNJLUMJZA2MT}

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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	2026-05-18T00:02:39.270469Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e61ccd405dd93d20286d4ae8c4e41a64f53f2a64bb920e5f57e930b3c0231efe

Aliases

arxiv: 1810.09547 · arxiv_version: 1810.09547v1 · doi: 10.48550/arxiv.1810.09547 · pith_short_12: 4YOM2QC53E6S · pith_short_16: 4YOM2QC53E6SAKDN · pith_short_8: 4YOM2QC5

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/4YOM2QC53E6SAKDNJLUMJZA2MT \
  | 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: e61ccd405dd93d20286d4ae8c4e41a64f53f2a64bb920e5f57e930b3c0231efe

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "cd743e8837b92652990caa6a180a322454f7d54d68a43f34ffb26f886c06694f",
    "cross_cats_sorted": [
      "math-ph",
      "math.MP"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AP",
    "submitted_at": "2018-10-12T14:59:40Z",
    "title_canon_sha256": "e0bf6c760252ad1e49ba0410a707ff152c8acdf898911c5f50b6cf7f2517cd43"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1810.09547",
    "kind": "arxiv",
    "version": 1
  }
}