Pith Number

pith:HO3XU2M6

pith:2018:HO3XU2M6RZDSINZNNPUTLXTYAI

not attested not anchored not stored refs pending

A Game Problem for Heat Equation

Donghui Yang, Lijuan Wang, Zhiyong Yu

arxiv:1802.08412 v1 · 2018-02-23 · math.OC

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{HO3XU2M6RZDSINZNNPUTLXTYAI}

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	2026-05-18T00:22:43.784652Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

3bb77a699e8e4724372d6be935de78023cd6b506cf0226cefd51f01cb9785ab5

Aliases

arxiv: 1802.08412 · arxiv_version: 1802.08412v1 · doi: 10.48550/arxiv.1802.08412 · pith_short_12: HO3XU2M6RZDS · pith_short_16: HO3XU2M6RZDSINZN · pith_short_8: HO3XU2M6

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/HO3XU2M6RZDSINZNNPUTLXTYAI \
  | 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: 3bb77a699e8e4724372d6be935de78023cd6b506cf0226cefd51f01cb9785ab5

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "b17dd8cd4729d8088ea4389a5cf578543fe4a93aa04c42b9db023a5562ec01b6",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.OC",
    "submitted_at": "2018-02-23T07:01:58Z",
    "title_canon_sha256": "b64468db4d86e078e2d5d73280c73a9a28594a626cc7af409050c5b32237c7a0"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1802.08412",
    "kind": "arxiv",
    "version": 1
  }
}