Pith Number

pith:34ODSFKB

pith:2023:34ODSFKBA2WDV2YYG5TFWJFBTJ

not attested not anchored not stored refs pending

Embedded symmetric positive semi-definite machine-learned elements for reduced-order modeling in finite-element simulations with application to threaded fasteners

Eric Parish, John Mersch, Payton Lindsay, Timothy Shelton

arxiv:2307.05434 v3 · 2023-07-11 · math.NA · 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{34ODSFKBA2WDV2YYG5TFWJFBTJ}

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	2026-07-05T07:03:59.933068Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

df1c39154106ac3aeb1837665b24a19a659e94be85d6c7c48a699f5358f12efa

Aliases

arxiv: 2307.05434 · arxiv_version: 2307.05434v3 · doi: 10.48550/arxiv.2307.05434 · pith_short_12: 34ODSFKBA2WD · pith_short_16: 34ODSFKBA2WDV2YY · pith_short_8: 34ODSFKB

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/34ODSFKBA2WDV2YYG5TFWJFBTJ \
  | 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: df1c39154106ac3aeb1837665b24a19a659e94be85d6c7c48a699f5358f12efa

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "a7663a1aa27558fc1f77a7083bd7e81c7e2ea3f8af81059c18390b678e9d0da6",
    "cross_cats_sorted": [
      "cs.NA"
    ],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "math.NA",
    "submitted_at": "2023-07-11T16:55:29Z",
    "title_canon_sha256": "905910a63dba9e533148d306e82cf7213e94345f458fbdd9e9475892bf84cd71"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2307.05434",
    "kind": "arxiv",
    "version": 3
  }
}