Pith Number

pith:7SCJ7MLB

pith:2009:7SCJ7MLB2UTZJDLJMNYZYAS3CZ

not attested not anchored not stored refs pending

Universal bounds for eigenvalues of a buckling problem II

Hongcang Yang, Qing-Ming Cheng

arxiv:0908.3745 v2 · 2009-08-26 · math.DG · math-ph · math.MP · math.SP

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{7SCJ7MLB2UTZJDLJMNYZYAS3CZ}

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	2026-05-18T04:18:34.883047Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

fc849fb161d527948d6963719c025b1653059aa40b81c7c44728787e4dd02eac

Aliases

arxiv: 0908.3745 · arxiv_version: 0908.3745v2 · doi: 10.48550/arxiv.0908.3745 · pith_short_12: 7SCJ7MLB2UTZ · pith_short_16: 7SCJ7MLB2UTZJDLJ · pith_short_8: 7SCJ7MLB

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/7SCJ7MLB2UTZJDLJMNYZYAS3CZ \
  | 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: fc849fb161d527948d6963719c025b1653059aa40b81c7c44728787e4dd02eac

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "62648852bfbf7cba32b8e9b24f5736c2e30bb18ecd775ac841d48b680013a1c9",
    "cross_cats_sorted": [
      "math-ph",
      "math.MP",
      "math.SP"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.DG",
    "submitted_at": "2009-08-26T07:39:20Z",
    "title_canon_sha256": "c1aecb29024c390f3c5b1f6b4d3e085fd89affd7bf9512a1686af4eaa981008a"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0908.3745",
    "kind": "arxiv",
    "version": 2
  }
}