Pith Number

pith:UGBKGKA3

pith:2019:UGBKGKA3HAKZKCCX6D7VQRH2NY

not attested not anchored not stored refs pending

A Thorough Look at the (In)Stability of Piston-theoretic Beams

Jason Howell, Justin T. Webster, Katelynn Huneycutt, Spencer Wilder

arxiv:1903.07244 v2 · 2019-03-18 · math.AP

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{UGBKGKA3HAKZKCCX6D7VQRH2NY}

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	2026-05-17T23:48:09.074852Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a182a3281b3815950857f0ff5844fa6e2600ff7867a9a6a97e568ac004dc2d91

Aliases

arxiv: 1903.07244 · arxiv_version: 1903.07244v2 · doi: 10.48550/arxiv.1903.07244 · pith_short_12: UGBKGKA3HAKZ · pith_short_16: UGBKGKA3HAKZKCCX · pith_short_8: UGBKGKA3

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/UGBKGKA3HAKZKCCX6D7VQRH2NY \
  | 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: a182a3281b3815950857f0ff5844fa6e2600ff7867a9a6a97e568ac004dc2d91

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "cfbe2a7e032e1ae5eb3df90b0e3cb97aa450289129b153c05ad17df9fc7a2b05",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AP",
    "submitted_at": "2019-03-18T03:33:57Z",
    "title_canon_sha256": "4ae062580fbf9c9ffc01dea691857b0317a4bdd39b8afc4b88bb9fbd02d62c35"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1903.07244",
    "kind": "arxiv",
    "version": 2
  }
}