Pith Number

pith:WAKCSD6Y

pith:2021:WAKCSD6YKGDGO7SQ4KC5DEJVMR

not attested not anchored not stored refs pending

Escaping the abstraction: a foreign function interface for the Unified Form Language [UFL]

David A. Ham, Nacime Bouziani

arxiv:2111.00945 v1 · 2021-11-01 · cs.MS · cs.NA · 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{WAKCSD6YKGDGO7SQ4KC5DEJVMR}

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.

Cited by

1 paper in Pith

Missing Physics Discovery through Fully Differentiable Finite Element-Based Machine Learning

Receipt and verification

First computed	2026-07-05T03:27:51.921585Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b014290fd85186677e50e285d19135646c5458e63e279f0840d2d1a8cdc37c8f

Aliases

arxiv: 2111.00945 · arxiv_version: 2111.00945v1 · doi: 10.48550/arxiv.2111.00945 · pith_short_12: WAKCSD6YKGDG · pith_short_16: WAKCSD6YKGDGO7SQ · pith_short_8: WAKCSD6Y

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/WAKCSD6YKGDGO7SQ4KC5DEJVMR \
  | 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: b014290fd85186677e50e285d19135646c5458e63e279f0840d2d1a8cdc37c8f

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "62f5d3c32c3863e8ce6097c1bf0575394434224e3efa2e8d1866618993d50248",
    "cross_cats_sorted": [
      "cs.NA",
      "math.NA"
    ],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "cs.MS",
    "submitted_at": "2021-11-01T13:38:38Z",
    "title_canon_sha256": "1271265d56df97e0b3f91cdb5a6a666ac9d44a261c12c5b3a51e6d69a444f93a"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2111.00945",
    "kind": "arxiv",
    "version": 1
  }
}