Pith Number

pith:CFARX6FF

pith:2012:CFARX6FFGV7LZ5FHTZPA6ZWIGP

not attested not anchored not stored refs pending

Efficient Compilation of a Class of Variational Forms

Anders Logg, Robert C. Kirby

arxiv:1205.3014 v1 · 2012-05-14 · 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{CFARX6FFGV7LZ5FHTZPA6ZWIGP}

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	2026-05-18T03:55:45.473467Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

11411bf8a5357ebcf4a79e5e0f66c833c353803d8ba4195786daedb16e1c240c

Aliases

arxiv: 1205.3014 · arxiv_version: 1205.3014v1 · doi: 10.48550/arxiv.1205.3014 · pith_short_12: CFARX6FFGV7L · pith_short_16: CFARX6FFGV7LZ5FH · pith_short_8: CFARX6FF

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/CFARX6FFGV7LZ5FHTZPA6ZWIGP \
  | 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: 11411bf8a5357ebcf4a79e5e0f66c833c353803d8ba4195786daedb16e1c240c

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "bf7a6eb37a8dd92e02315bae2615dd64dfb5daa486058f9ac6a689f9156cad26",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.NA",
    "submitted_at": "2012-05-14T13:22:39Z",
    "title_canon_sha256": "4bd9f991af24861438a08f0c699cb64c7715ddd59056be10a6481a0ce33ca5cc"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1205.3014",
    "kind": "arxiv",
    "version": 1
  }
}