Pith Number

pith:WBTIHKIG

pith:2013:WBTIHKIGQEOH34QKEOQFY6FZ2J

not attested not anchored not stored refs pending

Non-degenerate Eulerian finite element method for solving PDEs on surfaces

Alexey Y. Chernyshenko, Maxim A. Olshanskii

arxiv:1301.4707 v1 · 2013-01-20 · math.NA · math.AP · physics.comp-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{WBTIHKIGQEOH34QKEOQFY6FZ2J}

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	2026-05-18T03:28:55.879114Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b06683a906811c7df20a23a05c78b9d26540ed4c2521112406b6647d7dd369e9

Aliases

arxiv: 1301.4707 · arxiv_version: 1301.4707v1 · doi: 10.48550/arxiv.1301.4707 · pith_short_12: WBTIHKIGQEOH · pith_short_16: WBTIHKIGQEOH34QK · pith_short_8: WBTIHKIG

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/WBTIHKIGQEOH34QKEOQFY6FZ2J \
  | 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: b06683a906811c7df20a23a05c78b9d26540ed4c2521112406b6647d7dd369e9

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "29b75fdbbe8381f454946dc96ea68a6ed929f887d2f458d1a86b919af21a130e",
    "cross_cats_sorted": [
      "math.AP",
      "physics.comp-ph"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.NA",
    "submitted_at": "2013-01-20T23:07:09Z",
    "title_canon_sha256": "43968cb68ddcb9f72031af51bfa171f171bf3dba3d57599a857a607f2890cff0"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1301.4707",
    "kind": "arxiv",
    "version": 1
  }
}