Pith Number

pith:EOCIY3CH

pith:2014:EOCIY3CHDIVSBBE7YQSHB7Y74Q

not attested not anchored not stored refs pending

When does the heat equation have a solution with a sequence of similar level sets?

Shigeru Sakaguchi, Tatsuki Kawakami

arxiv:1403.6203 v2 · 2014-03-25 · 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{EOCIY3CHDIVSBBE7YQSHB7Y74Q}

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	2026-05-18T02:49:28.492048Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

23848c6c471a2b20849fc42470ff1fe404699c9eb617c42f6e666cf8bf6a3e52

Aliases

arxiv: 1403.6203 · arxiv_version: 1403.6203v2 · doi: 10.48550/arxiv.1403.6203 · pith_short_12: EOCIY3CHDIVS · pith_short_16: EOCIY3CHDIVSBBE7 · pith_short_8: EOCIY3CH

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/EOCIY3CHDIVSBBE7YQSHB7Y74Q \
  | 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: 23848c6c471a2b20849fc42470ff1fe404699c9eb617c42f6e666cf8bf6a3e52

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "3d3fbdde3555422259364d0a469018258c8d6f6b20383a320313cc6254c02a46",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AP",
    "submitted_at": "2014-03-25T01:00:30Z",
    "title_canon_sha256": "d4e11a03e1a93ce17977b3c305df3cb3630bf7191724c3b12037b9921655ee86"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1403.6203",
    "kind": "arxiv",
    "version": 2
  }
}