Pith Number

pith:2B3CUT5M

pith:2014:2B3CUT5M555Z77VTKMXQFDUCGS

not attested not anchored not stored refs pending

Nonexistence of Positive Supersolutions of Nonlinear Biharmonic Equations without the Maximum Principle

Marius Ghergu, Steven D. Taliaferro

arxiv:1407.4506 v1 · 2014-07-16 · 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{2B3CUT5M555Z77VTKMXQFDUCGS}

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	2026-05-18T02:47:23.812383Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

d0762a4facef7b9ffeb3532f028e82348b0b630bbc6429cb96c503e6e6aeb2ff

Aliases

arxiv: 1407.4506 · arxiv_version: 1407.4506v1 · doi: 10.48550/arxiv.1407.4506 · pith_short_12: 2B3CUT5M555Z · pith_short_16: 2B3CUT5M555Z77VT · pith_short_8: 2B3CUT5M

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/2B3CUT5M555Z77VTKMXQFDUCGS \
  | 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: d0762a4facef7b9ffeb3532f028e82348b0b630bbc6429cb96c503e6e6aeb2ff

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "8544756029c1743370c63606711443dc22f279d252c29eac1c7a0c52d448ac99",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AP",
    "submitted_at": "2014-07-16T21:50:29Z",
    "title_canon_sha256": "e1179c6df8b002133076e488ee149bb66ce4b3e54c368afd411a50a37e06871e"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1407.4506",
    "kind": "arxiv",
    "version": 1
  }
}