Pith Number

pith:FZDUNDEL

pith:2012:FZDUNDELK2D2PIMZISQ2E4PCH3

not attested not anchored not stored refs pending

Maximum principle for the finite element solution of time dependent anisotropic diffusion problems

Weizhang Huang, Xianping Li

arxiv:1209.5657 v2 · 2012-09-25 · math.NA

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{FZDUNDELK2D2PIMZISQ2E4PCH3}

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	2026-05-18T03:09:34.074399Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

2e47468c8b5687a7a19944a1a271e23ee98923b6d0a2d6a09ca8bbf353fc86c0

Aliases

arxiv: 1209.5657 · arxiv_version: 1209.5657v2 · doi: 10.48550/arxiv.1209.5657 · pith_short_12: FZDUNDELK2D2 · pith_short_16: FZDUNDELK2D2PIMZ · pith_short_8: FZDUNDEL

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/FZDUNDELK2D2PIMZISQ2E4PCH3 \
  | 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: 2e47468c8b5687a7a19944a1a271e23ee98923b6d0a2d6a09ca8bbf353fc86c0

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "dc918523586c24e3ab86291afece185ed5cf1fddf357f2252c5706568bd675c7",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.NA",
    "submitted_at": "2012-09-25T16:06:33Z",
    "title_canon_sha256": "04468c82e702c7a736533002715e9cbb855174d86daa22cccc6896b14510361e"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1209.5657",
    "kind": "arxiv",
    "version": 2
  }
}