pith. sign in
Pith Number

pith:6NCIBRNJ

pith:2018:6NCIBRNJJVOTH3ZIAFEA4D6LUX
not attested not anchored not stored refs pending

Exact and Numerically Stable Expressions for Euler-Bernoulli and Timoshenko Beam Modes

Daniel Segalman, Firas A. Khasawneh

arxiv:1811.03222 v3 · 2018-11-08 · physics.class-ph

Add to your LaTeX paper
\usepackage{pith}
\pithnumber{6NCIBRNJJVOTH3ZIAFEA4D6LUX}

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 2026-05-17T23:42:02.858926Z
Builder pith-number-builder-2026-05-17-v1
Signature Pith Ed25519 (pith-v1-2026-05) · public key
Schema pith-number/v1.0

Canonical hash

f34480c5a94d5d33ef2801480e0fcba5db7b5af54d8ed4f1056db82f04eadc45

Aliases

arxiv: 1811.03222 · arxiv_version: 1811.03222v3 · doi: 10.48550/arxiv.1811.03222 · pith_short_12: 6NCIBRNJJVOT · pith_short_16: 6NCIBRNJJVOTH3ZI · pith_short_8: 6NCIBRNJ
Agent API
Verify this Pith Number yourself
curl -sH 'Accept: application/ld+json' https://pith.science/pith/6NCIBRNJJVOTH3ZIAFEA4D6LUX \
  | 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: f34480c5a94d5d33ef2801480e0fcba5db7b5af54d8ed4f1056db82f04eadc45
Canonical record JSON
{
  "metadata": {
    "abstract_canon_sha256": "8068ff76b1a0c9d0cb0a2f128bfbb8700710938bc8d7d89f9e9b862bff06d891",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "physics.class-ph",
    "submitted_at": "2018-11-08T02:08:57Z",
    "title_canon_sha256": "42aac1abcaa6c1b557bdb779f7a37afa15bc4a3c6719458780cea4e99770380c"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1811.03222",
    "kind": "arxiv",
    "version": 3
  }
}