Pith Number

pith:CYO4K2DJ

pith:2013:CYO4K2DJQ3RSWHXBWEJ6SJN77M

not attested not anchored not stored refs pending

Mixed finite elements for elasticity on quadrilateral meshes

Douglas N. Arnold, Gerard Awanou, Weifeng Qiu

arxiv:1306.6821 v2 · 2013-06-28 · 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{CYO4K2DJQ3RSWHXBWEJ6SJN77M}

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	2026-05-18T02:53:53.788010Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

161dc5686986e32b1ee1b113e925bffb179b3909e387c3dc2ad5eb78904ab324

Aliases

arxiv: 1306.6821 · arxiv_version: 1306.6821v2 · doi: 10.48550/arxiv.1306.6821 · pith_short_12: CYO4K2DJQ3RS · pith_short_16: CYO4K2DJQ3RSWHXB · pith_short_8: CYO4K2DJ

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/CYO4K2DJQ3RSWHXBWEJ6SJN77M \
  | 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: 161dc5686986e32b1ee1b113e925bffb179b3909e387c3dc2ad5eb78904ab324

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "b6602e2605f7eb69f0172a8138b7e36c91da7c311550830411661285245f07db",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.NA",
    "submitted_at": "2013-06-28T13:02:25Z",
    "title_canon_sha256": "c20b7216312bdb99007ae65e9d7cd2ea31dd668a679567a493b14a896d1ff0e3"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1306.6821",
    "kind": "arxiv",
    "version": 2
  }
}