Pith Number

pith:QLGYPUPQ

pith:2014:QLGYPUPQSNR55WPGVRXHOIOXFM

not attested not anchored not stored refs pending

Density and Level Set-XFEM Schemes for Topology Optimization of 3-D Structures

Carlos H. Villanueva, Kurt Maute

arxiv:1401.6475 v1 · 2014-01-25 · 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{QLGYPUPQSNR55WPGVRXHOIOXFM}

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	2026-05-18T03:01:01.723109Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

82cd87d1f09363ded9e6ac6e7721d72b003332bb5a2f0dc01bc0cf821be9aae1

Aliases

arxiv: 1401.6475 · arxiv_version: 1401.6475v1 · doi: 10.48550/arxiv.1401.6475 · pith_short_12: QLGYPUPQSNR5 · pith_short_16: QLGYPUPQSNR55WPG · pith_short_8: QLGYPUPQ

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/QLGYPUPQSNR55WPGVRXHOIOXFM \
  | 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: 82cd87d1f09363ded9e6ac6e7721d72b003332bb5a2f0dc01bc0cf821be9aae1

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "945b889e4eadcc80ad272025d9d8acb4434e17e66f216e8eb7ce33d4425f093f",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.OC",
    "submitted_at": "2014-01-25T00:02:22Z",
    "title_canon_sha256": "284881cf1171e38fec68797ac8d224f5ef2a40d3bec16d2edeb4afc134cd626a"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1401.6475",
    "kind": "arxiv",
    "version": 1
  }
}