Pith Number

pith:MEUYFXSP

pith:2011:MEUYFXSP2EBLUPKF5BBVV65HD4

not attested not anchored not stored refs pending

Automating the Finite Element Method

Anders Logg

arxiv:1112.0433 v1 · 2011-12-02 · 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{MEUYFXSP2EBLUPKF5BBVV65HD4}

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	2026-05-18T04:07:07.227114Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

612982de4fd102ba3d45e8435afba71f1076efdcd720b225293c4cd3b2ce828c

Aliases

arxiv: 1112.0433 · arxiv_version: 1112.0433v1 · doi: 10.48550/arxiv.1112.0433 · pith_short_12: MEUYFXSP2EBL · pith_short_16: MEUYFXSP2EBLUPKF · pith_short_8: MEUYFXSP

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/MEUYFXSP2EBLUPKF5BBVV65HD4 \
  | 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: 612982de4fd102ba3d45e8435afba71f1076efdcd720b225293c4cd3b2ce828c

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "172fcffacf3565252161f3c3f5fb3264bd8c7e0b3402b0ce2d8bca8f7b91af7d",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.NA",
    "submitted_at": "2011-12-02T11:47:56Z",
    "title_canon_sha256": "ac974801abdd67f866860b1637d41bdcbd87b3433af2de4608545d0f3f0a96f0"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1112.0433",
    "kind": "arxiv",
    "version": 1
  }
}