Pith Number

pith:GE3VD7LX

pith:2019:GE3VD7LXUIOZIZPTH3GLC7USH4

not attested not anchored not stored refs pending

Quantitative analysis of a singularly perturbed shape optimization problem in a polygon

Benedetta Pellacci, Dario Mazzoleni, Gianmaria Verzini

arxiv:1902.05844 v1 · 2019-02-15 · math.AP · math.OC

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{GE3VD7LXUIOZIZPTH3GLC7USH4}

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	2026-05-17T23:53:55.317953Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

313751fd77a21d9465f33eccb17e923f2914d4029af9d3b2aff445f452d0c816

Aliases

arxiv: 1902.05844 · arxiv_version: 1902.05844v1 · doi: 10.48550/arxiv.1902.05844 · pith_short_12: GE3VD7LXUIOZ · pith_short_16: GE3VD7LXUIOZIZPT · pith_short_8: GE3VD7LX

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/GE3VD7LXUIOZIZPTH3GLC7USH4 \
  | 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: 313751fd77a21d9465f33eccb17e923f2914d4029af9d3b2aff445f452d0c816

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "15e27b7e02e6e7b4894a9c7ec4cacf1067bfb12b42d00fc709feac7da72df9e6",
    "cross_cats_sorted": [
      "math.OC"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AP",
    "submitted_at": "2019-02-15T15:30:07Z",
    "title_canon_sha256": "ad0cf4976cc6513f2a85d879f9a3555078a80602e2636231d1f83485fd3b6bb4"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1902.05844",
    "kind": "arxiv",
    "version": 1
  }
}