Pith Number

pith:L4MYUQFM

pith:2013:L4MYUQFMSS23RL5MFF4ZS7GBSA

not attested not anchored not stored refs pending

On some new global existence result of 3D Magnetohydrodynamic equations

Cheng He, Xiangdi Huang, Yun Wang

arxiv:1308.2458 v1 · 2013-08-12 · 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{L4MYUQFMSS23RL5MFF4ZS7GBSA}

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	2026-05-18T01:48:16.455847Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

5f198a40ac94b5b8afac2979997cc19034469f3992e319d386779871da332398

Aliases

arxiv: 1308.2458 · arxiv_version: 1308.2458v1 · doi: 10.48550/arxiv.1308.2458 · pith_short_12: L4MYUQFMSS23 · pith_short_16: L4MYUQFMSS23RL5M · pith_short_8: L4MYUQFM

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/L4MYUQFMSS23RL5MFF4ZS7GBSA \
  | 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: 5f198a40ac94b5b8afac2979997cc19034469f3992e319d386779871da332398

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "17bc03cd870d4e7bc0c1f668ef803e4a8916d23e55c0c1f26cde7c5bbf6daa4a",
    "cross_cats_sorted": [
      "math-ph",
      "math.MP"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AP",
    "submitted_at": "2013-08-12T04:10:47Z",
    "title_canon_sha256": "52d7b4bce1ac6d7b737ac91412d1a87326d30a73d72f4caf1c5d419a53f50ac6"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1308.2458",
    "kind": "arxiv",
    "version": 1
  }
}