Pith Number

pith:C7TGZ363

pith:2026:C7TGZ363JEUEO2SQDCLNOHA3QG

not attested not anchored not stored refs pending

How to Cook a Soft-Boiled Egg Optimally: A Laplace-Transform Solution of a Two-Domain Heat Equation

Matthew Lorig

arxiv:2606.22156 v1 · 2026-06-20 · math.AP · math.OC · physics.class-ph

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{C7TGZ363JEUEO2SQDCLNOHA3QG}

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	2026-06-23T02:13:29.840302Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

17e66cefdb4928476a501896d71c1b818478be3e39ec838ba308ec64c47c139a

Aliases

arxiv: 2606.22156 · arxiv_version: 2606.22156v1 · doi: 10.48550/arxiv.2606.22156 · pith_short_12: C7TGZ363JEUE · pith_short_16: C7TGZ363JEUEO2SQ · pith_short_8: C7TGZ363

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/C7TGZ363JEUEO2SQDCLNOHA3QG \
  | 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: 17e66cefdb4928476a501896d71c1b818478be3e39ec838ba308ec64c47c139a

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "b83284d9974cd6433c3b843ee5f6f08b60f6c6d49e7bc75188bdffa1bc8d186d",
    "cross_cats_sorted": [
      "math.OC",
      "physics.class-ph"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AP",
    "submitted_at": "2026-06-20T17:27:19Z",
    "title_canon_sha256": "f8d57ace21a09c79ca9d1a12bff6f8202194a94b24e8d9ef6de0219da9f469d9"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2606.22156",
    "kind": "arxiv",
    "version": 1
  }
}