Pith Number

pith:2YT6BROF

pith:2017:2YT6BROFHPKWU4FFKGUNSIV26C

not attested not anchored not stored refs pending

An exact solution to a Stefan problem with variable thermal conductivity and a Robin boundary condition

Andrea N. Ceretani, Domingo A. Tarzia, Natalia N. Salva

arxiv:1706.06984 v1 · 2017-06-21 · 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{2YT6BROFHPKWU4FFKGUNSIV26C}

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	2026-05-18T00:41:56.345055Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

d627e0c5c53bd56a70a551a8d922baf0a0c2eb4176ce28c467b247c939ae1d75

Aliases

arxiv: 1706.06984 · arxiv_version: 1706.06984v1 · doi: 10.48550/arxiv.1706.06984 · pith_short_12: 2YT6BROFHPKW · pith_short_16: 2YT6BROFHPKWU4FF · pith_short_8: 2YT6BROF

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/2YT6BROFHPKWU4FFKGUNSIV26C \
  | 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: d627e0c5c53bd56a70a551a8d922baf0a0c2eb4176ce28c467b247c939ae1d75

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "a5e42f88eeabb16beff0660f4bac89319ccecab0e1226526a62fea9ecfc91971",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AP",
    "submitted_at": "2017-06-21T16:15:12Z",
    "title_canon_sha256": "4e4cf2d2fd037ad30fa3909ce280664465ad446f2612eafc407ccf1405b038cc"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1706.06984",
    "kind": "arxiv",
    "version": 1
  }
}