Pith Number

pith:FPZSIMDT

pith:2021:FPZSIMDTFOG46WQLO5DJCYDYNI

not attested not anchored not stored refs pending

Connections between Numerical Algorithms for PDEs and Neural Networks

Joachim Weickert, Karl Schrader, Matthias Augustin, Pascal Peter, Tobias Alt

arxiv:2107.14742 v2 · 2021-07-30 · math.NA · cs.LG · cs.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{FPZSIMDTFOG46WQLO5DJCYDYNI}

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	2026-07-05T04:06:44.308598Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

2bf32430732b8dcf5a0b77469160786a3eefe7d5187bd70afa2bd71800edce47

Aliases

arxiv: 2107.14742 · arxiv_version: 2107.14742v2 · doi: 10.48550/arxiv.2107.14742 · pith_short_12: FPZSIMDTFOG4 · pith_short_16: FPZSIMDTFOG46WQL · pith_short_8: FPZSIMDT

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/FPZSIMDTFOG46WQLO5DJCYDYNI \
  | 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: 2bf32430732b8dcf5a0b77469160786a3eefe7d5187bd70afa2bd71800edce47

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "57124c4bcb640e02627ccfdba5d31ff85817f97376bc7204ce97375be5ea70da",
    "cross_cats_sorted": [
      "cs.LG",
      "cs.NA"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.NA",
    "submitted_at": "2021-07-30T16:42:45Z",
    "title_canon_sha256": "98037f64ca68bf9d1b73ec163538e32ed96f90bd6d2301fb7a16a6b71cf2d813"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2107.14742",
    "kind": "arxiv",
    "version": 2
  }
}